http://publicationslist.org/data/francis.hindle/atom.xml Francis Hindlehttp://publicationslist.org/francis.hindle$basepathfavicon.icoRecent additions to Francis Hindle's PublicationsList.org pagehttp://publicationslist.org/publications.png2018-10-10T10:12:01Z http://publicationslist.org/francis.hindle/refid67 2018-09-25T11:50:40Z

Room temperature millimeter-wave rotational spectroscopy supported by high level of theory calculations have been employed to fully characterise the conformational landscape of 3-Methoxyphenol, a semi-volatile polar oxygenated aromatic compound precursor of secondary organic aerosols in the atmosphere arising from biomass combustion. While previous rotationally-resolved spectroscopic studies in th...<br/><br/>A Roucou, D Fontanari, G Dhont, A Jabri, C Bray, F Hindle, G Mouret, R Bocquet, A Cuisset (2018) <i>ChemPhysChem</i> <i></i> <i>https://www.scopus.com/inward/record.uri?eid=2-s2.0-85046088526&doi=10.1002%2fcphc.201800148&partnerID=40&md5=5263c65678a6ffbeb7472bfe516e083f</i> 19: 13 1572-1578<br/>

http://publicationslist.org/francis.hindle/refid68 2018-09-25T11:50:40Z

The monitoring of gas-phase mononitrotoluenes is crucial for defence, civil security and environmental interests because they are used as taggant for TNT detection and in the manufacturing of industrial compounds such as dyestuffs. In this study, we have succeeded to measure and analyse at high-resolution a room temperature rotationally resolved millimetre-wave spectrum of meta-nitrotoluene (3-NT)...<br/><br/>A Roucou, I Kleiner, M Goubet, S Bteich, G Mouret, R Bocquet, F Hindle, W L Meerts, A Cuisset (2018) <i>ChemPhysChem</i> <i></i> <i>https://www.scopus.com/inward/record.uri?eid=2-s2.0-85042145397&doi=10.1002%2fcphc.201701266&partnerID=40&md5=89b3cf33d7d391fbaf5855c1683b10ba</i> 19: 9 1056-1067<br/>

http://publicationslist.org/francis.hindle/refid69 2018-09-25T11:50:40Z

The combination of electronic sources operating at high frequencies and modern microwave instrumentation has enabled the recent development of chirped pulse spectrometers for the millimetre and THz bands. This type of instrument can operate at high resolution which is particularly suited to gas-phase rotational spectroscopy. The construction of a chirped pulse spectrometer operating at 200 GHz ...<br/><br/>F Hindle, C Bray, K Hickson, D Fontanari, M Mouelhi, A Cuisset, G Mouret, R Bocquet (2018) <i>Journal of Infrared, Millimeter, and Terahertz Waves</i> <i></i> <i>https://www.scopus.com/inward/record.uri?eid=2-s2.0-85031897671&doi=10.1007%2fs10762-017-0445-3&partnerID=40&md5=60d4a19d1e8e963a86863d39fc1f1989</i> 39: 1 105-119<br/>

http://publicationslist.org/francis.hindle/refid70 2018-10-10T10:11:43Z

High resolution rotational Terahertz (THz) spectroscopy has been widely applied to the studies of numerous polar gas phase molecules, in particular volatile organic compounds (VOCs). During the storage of foodstuffs packed under a protective atmosphere, microbial activity will lead to the generation of a complex mixture of trace gases that could be used as food spoilage indicators. Here we have de...<br/><br/>Francis Hindle, Lotta Kuuliala, Meriem Mouelhi, Arnaud Cuisset, Cedric Bray, Mathias Vanwolleghem, Frank Devlieghere, Gael Mouret, Robin Bocquet (2018) <i>Analyst</i> <i></i> <i>http://dx.doi.org/10.1039/C8AN01180J</i> : <br/>

http://publicationslist.org/francis.hindle/refid63 2016-12-07T09:29:10Z

Abstract Several previously unmeasured transitions of 12CH3D have been recorded by a terahertz photomixing continuous-wave spectrometer up to QR(10) branch at 2.5 THz. An improved set of rotational constants has been obtained utilizing a THz frequency metrology based on a frequency comb that achieved an averaged frequency position better than 150 kHz on more than fifty ground-state transitions. A ...<br/><br/>Cédric Bray, Arnaud Cuisset, Francis Hindle, Robin Bocquet, Gaël Mouret, Brian J Drouin (2017) <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i> <i></i> <i>http://www.sciencedirect.com/science/article/pii/S0022407316306719</i> 189: 198-205<br/>

http://publicationslist.org/francis.hindle/refid66 2017-09-07T08:57:21Z

Several Doppler-limited rotational transitions of methane induced by centrifugal distortion have been measured with an unprecedented frequency accuracy using a THz photomixing synthesizer based on a frequency comb. Compared to previous synchrotron based FT-Far-IR measurements of Boudon et al. (Ref. ), the accuracy of the line frequency measurements is improved by one order of magnitude; this yield...<br/><br/>C Bray, A Cuisset, F Hindle, G Mouret, R Bocquet, V Boudon (2017) <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i> <i></i> <i>https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018621726&doi=10.1016%2fj.jqsrt.2017.04.010&partnerID=40&md5=7881c85c0f1bd9ec1ecbf8a5deed269d</i> : <br/>

http://publicationslist.org/francis.hindle/refid60 2016-05-04T11:09:49Z

A terahertz (THz) frequency synthesizer based on photomixing of two near-infrared lasers with a sub-THz to THz frequency offset is a powerful tool for spectroscopy of polar gas molecules due to its broad spectral coverage; however, its frequency accuracy and resolution are relatively low. To tune the output frequency continuously and widely while maintaining its traceability to a frequency standar...<br/><br/>Yi-Da Hsieh, Hiroto Kimura, Kenta Hayashi, Takeo Minamikawa, Yasuhiro Mizutani, Hirotsugu Yamamoto, Tetsuo Iwata, Hajime Inaba, Kaoru Minoshima, Francis Hindle, Takeshi Yasui (2016) <i>Journal of Infrared, Millimeter, and Terahertz Waves</i> <i></i> <i>http://dx.doi.org/10.1007/s10762-016-0277-6</i> : 1-13<br/>

http://publicationslist.org/francis.hindle/refid61 2016-11-18T09:15:49Z

Terahertz (THz) spectroscopy is a promising method for analysing polar gas molecules mixed with unwanted aerosols due to its ability to obtain spectral fingerprints of rotational transition and immunity to aerosol scattering. In this article, dynamic THz spectroscopy of acetonitrile (CH3 CN) gas was performed in the presence of smoke under the atmospheric pressure using a fibre-based, asynchronous...<br/><br/>Y -D Hsieh, S Nakamura, D G Abdelsalam, T Minamikawa, Y Mizutani, H Yamamoto, T Iwata, F Hindle, T Yasui (2016) <i>Scientific Reports</i> <i></i> <i>https://www.scopus.com/inward/record.uri?eid=2-s2.0-84974831427&partnerID=40&md5=7b41477ce4241d8fed02222c0eefc5d2</i> 6: 28114<br/>

http://publicationslist.org/francis.hindle/refid62 2016-11-18T09:13:59Z

Despite its potential role as an atmospheric pollutant, thionyl chloride, SOCl2, remains poorly characterized in the gas phase. In this study, the pure rotational and ro-vibrational spectra of six isotopologues of this molecule, all detected in natural abundance, have been extensively studied from the cm-wave band to the far-infrared region by means of three complementary techniques: chirped-pulse...<br/><br/>M A Martin-Drumel, A Roucou, G G Brown, S Thorwirth, O Pirali, G Mouret, F Hindle, M C McCarthy, A Cuisset (2016) <i>Journal of Chemical Physics</i> <i></i> <i>https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959440696&partnerID=40&md5=cdc5374ac875798e33db2490d6ef2388</i> 144: 8 <br/>

http://publicationslist.org/francis.hindle/refid53 2015-01-22T16:02:17Z

In order to obtain accurate terahertz center frequencies for SO and its isotopologues, we have studied the absorption spectrum of SO, 34 SO, and 33 SO up to 2.5 THz using continuous-wave terahertz photomixing based on a frequency comb providing an accuracy down to 10 kHz. Sulfur monoxide was produced in a radio frequency discharge of air in a cell containing pure sulfur. Together with the strong a...<br/><br/>M A Martin-Drumel, F Hindle, G Mouret, A Cuisset, J Cernicharo (2015) <i>The Astrophysical Journal</i> <i></i> <i>http://stacks.iop.org/0004-637X/799/i=2/a=115</i> 799: 2 <br/>

http://publicationslist.org/francis.hindle/refid56 2015-07-01T14:44:17Z

Fourier transform spectroscopy (FTS) has been widely used in a variety of fields due to its high signal-to-noise ratio, simultaneous acquisition of a broad spectrum, and versatility for different radiation sources. Further improvement of the spectroscopic performance will widen its scope of applications. Here, we demonstrate improved spectral resolution by overcoming the time-window size limitatio...<br/><br/>Takeshi Yasui, Yuki Iyonaga, Yi-Da Hsieh, Yoshiyuki Sakaguchi, Francis Hindle, Shuko Yokoyama, Tsutomu Araki, Mamoru Hashimoto (2015) <i>Optica</i> <i></i> <i>http://www.osapublishing.org/optica/abstract.cfm?URI=optica-2-5-460</i> 2: 5 460-467<br/>

http://publicationslist.org/francis.hindle/refid54 2015-05-28T14:52:27Z

Polycyclic aromatic hydrocarbons (PAHs) are highly relevant for astrophysics as possible, though controversial, carriers of the unidentified infrared emission bands that are observed in a number of different astronomical objects. In support of radio-astronomical observations, high resolution laboratory spectroscopy has already provided the rotational spectra in the vibrational ground state of seve...<br/><br/>O Pirali, Z Kisiel, M Goubet, S Gruet, M A Martin-Drumel, A Cuisset, F Hindle, G Mouret (2015) <i>Journal of Chemical Physics</i> <i></i> <i></i> 142: 10 <br/>

http://publicationslist.org/francis.hindle/refid57 2015-08-31T14:50:04Z

Terahertz (THz) dual comb spectroscopy (DCS) is a promising method for high-accuracy, high-resolution, broadband THz spectroscopy because the mode-resolved THz comb spectrum includes both broadband THz radiation and narrow-line CW-THz radiation characteristics. In addition, all frequency modes of a THz comb can be phase-locked to a microwave frequency standard, providing excellent traceability. Ho...<br/><br/>Takeshi Yasui, Ryuji Ichikawa, Yi-Da Hsieh, Kenta Hayashi, Harsono Cahyadi, Francis Hindle, Yoshiyuki Sakaguchi, Tetsuo Iwata, Yasuhiro Mizutani, Hirotsugu Yamamoto, Kaoru Minoshima, Hajime Inaba (2015) <i>Scientific Reports</i> <i></i> <i>http://dx.doi.org/10.1038/srep10786</i> 5: <br/>

http://publicationslist.org/francis.hindle/refid58 2015-08-31T14:56:01Z

Frequency combs have enabled significant progress in frequency metrology and high-resolution spectroscopy extending the achievable resolution while increasing the signal-to-noise ratio. In its coherent mode, synchrotron radiation is accepted to provide an intense terahertz continuum covering a wide spectral range from about 0.1 to 1 THz. Using a dedicated heterodyne receiver, we reveal the purely ...<br/><br/>S Tammaro, O Pirali, P Roy, J.-F. Lampin, G Ducournau, A Cuisset, F Hindle, G Mouret (2015) <i>Nature Communications</i> <i></i> <i>http://www.scopus.com/inward/record.url?eid=2-s2.0-84937390991&partnerID=40&md5=59e22bd0cc922fdd2917a68773d14c60</i> 6: <br/>

http://publicationslist.org/francis.hindle/refid59 2015-08-31T14:53:50Z

A terahertz sensor system based on a commercially available multiplier chain operating in the range 600–900 GHz is used to monitor the photolysis of formaldehyde H2CO. The exposure of formaldehyde to solar radiation provokes dissociation via two pathways: 1) the molecular channel producing molecular carbon monoxide CO and 2) the radicalar channel giving formyl HCO. Monitoring the concentrations ...<br/><br/>A Omar, S Eliet, A Cuisset, G Dhont, C Coeur-Tourneur, R Bocquet, G Mouret, F Hindle (2015) <i>Sensors Journal, IEEE</i> <i></i> <i></i> 15: 11 6141-6146<br/>

http://publicationslist.org/francis.hindle/refid51 2015-07-01T14:45:12Z

Optical frequency combs are innovative tools for broadband spectroscopy because a series of comb modes can serve as frequency markers that are traceable to a microwave frequency standard. However, a mode distribution that is too discrete limits the spectral sampling interval to the mode frequency spacing even though individual mode linewidth is sufficiently narrow. Here, using a combination of a s...<br/><br/>Yi-Da Hsieh , Yuki Iyonaga , Yoshiyuki Sakaguchi , Shuko Yokoyama , Hajime Inaba , Kaoru Minoshima , Francis Hindle , Tsutomu Araki, Takeshi Yasui (2014) <i>Scientific Reports</i> 4: 3816 <br/>

http://publicationslist.org/francis.hindle/refid45 2013-01-11T14:52:02Z

A THz sensor system based on a commercially available multiplier chain is applied to the analysis of trace gases. Frequency modulation of the source is used to achieve the high sensitivity required. Particular attention has been paid to the line broadening effect caused by the modulation as this can hamper the quantification of the various chemical species being monitored. A numerical model using ...<br/><br/>G Mouret, M Guinet, A Cuisset, L Croize, S Eliet, R Bocquet, F Hindle (2013) <i>IEEE Sensors Journal</i> <i></i> <i></i> 13: 1 133-138<br/>

http://publicationslist.org/francis.hindle/refid43 2013-01-11T14:54:10Z

Rovibrational absorption spectra of methyl chloride in the spectral region between 2800 and 3200 cm−1 were recorded with a high-resolution Fourier transform spectrometer. A multispectrum fitting procedure was used to analyze 527 transitions of the ν1 band and to retrieve the self-broadening coefficients for various J- and K-values with an estimated accuracy around 8%. Pure rotational transition...<br/><br/>C Bray, D Jacquemart, N Lacome, M Guinet, A Cuisset, S Eliet, F Hindle, G Mouret, F Rohart, J Buldyreva (2013) <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i> <i></i> <i>http://www.sciencedirect.com/science/article/pii/S0022407312004189</i> 116: 87-100<br/>

http://publicationslist.org/francis.hindle/refid48 2013-02-07T20:43:37Z

Chalcogenide alloys in the Ag2S*As2S3*HgI2 pseudo-ternary system were synthesized and their vitreous nature was verified by X-ray diffraction. The glass transition and crystallization temperatures (Tg and Tc), the density (d), and the total electrical conductivity (σ) were measured for all samples of three series, A, B, and C corresponding to (Ag2S)50-x/2(As2S3)50-x/2(HgI2)x, (Ag2S)y(As2S3)80-y...<br/><br/>R Boidin, D Le Coq, A Cuisset, F Hindle, J -B. Brubach, K Michel, E Bychkov (2013) <i>Journal of Solid State Chemistry</i> <i></i> <i>http://www.scopus.com/inward/record.url?eid=2-s2.0-84872969276&partnerID=40&md5=700a314bc81721e27e94e08780b0babb</i> 199: 264-270<br/>

http://publicationslist.org/francis.hindle/refid49 2013-02-07T20:42:40Z

F Hindle, M Shur, D Abbot, K B Ozanyan (2013) <i>IEEE Sensors Journal</i> <i></i> <i>http://www.scopus.com/inward/record.url?eid=2-s2.0-84871384999&partnerID=40&md5=d095993ea4ea0eecbe8e4ce9411222f5</i> 13: 1 <br/>

http://publicationslist.org/francis.hindle/refid50 2013-05-17T10:16:22Z

The fine-structured spectrum of a terahertz (THz) frequency comb has been observed using asynchronous-optical-sampling THz time-domain spectroscopy with an extended time window covering multiple THz pulses. Fourier transformation of 10 consecutive THz pulses enables us to obtain the spectrum of THz comb mode having a linewidth of 25 MHz at intervals of 250 MHz. Further expansion of time window up ...<br/><br/>Y.-D. Hsieh, Y. Iyonaga, Y. Sakaguchi, S. Yokoyama, H. Inaba, K. Minoshima, F. Hindle, Y. Takahashi, M. Yoshimura, Y. Mori, T. Araki, and T. Yasui (2013) <i>IEEE Transactions on Terahertz Science and Technology</i> 3: 3 322 - 330<br/>

http://publicationslist.org/francis.hindle/refid52 2014-02-24T10:17:06Z

We report on the successful extended analysis of the high-frequency (200–700 GHz) part of the gas phase (sub)mm-wave spectra of dimethylsulfoxide (DMSO). The spectrum was recorded at 100 kHz resolution using a solid state subTHz spectrometer. The five lowest energy fundamental vibrational states of DMSO with frequencies below 400 cm−1 were observed as sidebands along with the main 0←0 band. ...<br/><br/>Arnaud Cuisset, Marie-Aline Martin Drumel, Francis Hindle, Gaël Mouret, Dmitrií A Sadovskií (2013) <i>Chemical Physics Letters</i> <i></i> <i>http://www.sciencedirect.com/science/article/pii/S0009261413011846</i> 586: 10-15<br/>

http://publicationslist.org/francis.hindle/refid40 2012-11-22T10:49:12Z

The spectral resolution and accuracy of asynchronous-optical-sampling terahertz time-domain spectroscopy (ASOPS-THz-TDS) were evaluated by examining low-pressure gas-phase samples. Use of dual 56-MHz, erbium (Er)-doped, mode-locked femtosecond fiber lasers enhanced the spectral resolution to as low as 50.5 MHz and the spectral accuracy to as low as 6.2 \texttimes 10\textminus6. The results indicat...<br/><br/>Takeshi Yasui, Kohji Kawamoto, Yi-Da Hsieh, Yoshiyuki Sakaguchi, Mukesh Jewariya, Hajime Inaba, Kaoru Minoshima, Francis Hindle, Tsutomu Araki (2012) <i>Opt. Express</i> <i></i> <i>http://www.opticsexpress.org/abstract.cfm?URI=oe-20-14-15071</i> 20: 14 15071-15078<br/>

http://publicationslist.org/francis.hindle/refid41 2012-11-22T10:48:54Z

Approximately 60 pure rotational frequency transitions of formaldehyde in its ground state have been measured with sub-MHz uncertainty in the 0.7-1.8THz frequency range using a photomixing THz synthesizer locked onto a frequency comb. The frequencies associated with previous submillimeter and infrared data have been included in a fit providing a new set of improved molecular parameters. The assign...<br/><br/>S Eliet, A Cuisset, M Guinet, F Hindle, G Mouret, R Bocquet, J Demaison (2012) <i>Journal of Molecular Spectroscopy</i> <i></i> <i>http://www.scopus.com/inward/record.url?eid=2-s2.0-84865566721&partnerID=40&md5=3a4a481a8c2a870536bec94d5cc4c857</i> 279: 12-15<br/>

http://publicationslist.org/francis.hindle/refid42 2012-11-29T20:15:27Z

Room-temperature N 2-broadening coefficients of methyl chloride rotational lines are measured over a large interval of quantum numbers (6≀J≀50, 0≀K≀18) by a submillimeter frequency-multiplication chain (J≀31) and a terahertz photomixing continuous-wave spectrometer (J≥31). In order to check the accuracy of both techniques, the measurements of identical lines are...<br/><br/>M Guinet, F Rohart, J Buldyreva, V Gupta, S Eliet, R A Motiyenko, L Margules, A Cuisset, F Hindle, G Mouret (2012) <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i> <i></i> <i>http://www.scopus.com/inward/record.url?eid=2-s2.0-84860919537&partnerID=40&md5=bb0558690467400b58e0d34abb5ef0a3</i> 113: 11 1113-1126<br/>

http://publicationslist.org/francis.hindle/refid44 2012-11-29T20:13:47Z

Pure rotational transitions of OH and SH radicals have been recorded in the THz spectral range using cw-THz and synchrotron-based FT-FIR techniques. Line lists on these radicals have been completed in the three and two lowest vibrational states for OH and SH, respectively. Furthermore, the hyperfine structure of OH and SH has been observed for the first time using infrared IR FT-spectroscopy, and ...<br/><br/>M A Martin-Drumel, S Eliet, O Pirali, M Guinet, F Hindle, G Mouret, A Cuisset (2012) <i>Chemical Physics Letters</i> <i></i> <i>http://www.sciencedirect.com/science/article/pii/S0009261412009438</i> 550: 8-14<br/>

http://publicationslist.org/francis.hindle/refid34 2011-09-15T08:57:31Z

The generation of cw-THz radiation by photomixing is particularly suited to the high resolution spectroscopy of gases; nevertheless, until recently, it has suffered from a lack of frequency metrology. Frequency combs are a powerful tool that can transfer microwave frequency standards to optical frequencies and a single comb has permitted accurate (10−8) THz frequency synthesis with a limited tun...<br/><br/>F. Hindle, G. Mouret, S. Eliet, M. Guinet, A. Cuisset, R. Bocquet, T. Yasui, D. Rovera (2011) <i>Applied Physics B</i> 104: 4 763-768<br/>

http://publicationslist.org/francis.hindle/refid35 2012-03-22T10:32:16Z

The case of symmetric tops CH3X (X = Br, Cl, F, …) perturbed by non-polar diatoms Y2 (Y = N2, O2, …) is analyzed from the viewpoint of theoretical collisional broadening of their rotational lines observed in atmospheric spectra. A semi-classical approach involving an exponential representation of the scattering operator and exact trajectories governed by the isotropic potential is presented...<br/><br/>Jeanna Buldyreva,Mickaël Guinet,Sophie Eliet,Francis Hindle, Gaël Mouret, Robin Bocquet, and Arnaud Cuisset (2011) <i>Physical Chemistry Chemical Physics</i> 13: 45 20326-20334<br/>

http://publicationslist.org/francis.hindle/refid32 2012-06-18T20:14:30Z

The glass-forming region in the pseudo-ternary CdSe–AgI–As2Se3 system was determined. Measurements including differential scanning calorimetry (DSC), density, and X-ray diffraction were performed. The effect resulting from the addition of CdSe or AgI has been highlighted by examining three series of different base glasses. The characteristic temperatures of the glass samples, including glass t...<br/><br/>M. Kassem, D. Le Coq, M. Fourmentin, F. Hindle, M. Bokova, A. Cuisset, P. Masselin and E. Bychkov (2011) <i>Materials Research Bulletin</i> 46: 2 210-215<br/>

http://publicationslist.org/francis.hindle/refid38 2012-11-22T10:49:53Z

A continuous-wave terahertz (CW-THz) source generated by photomixing has been employed to detect and quantify radicals produced in a cold plasma probing their spin-rotation transitions. Due to their dual interest for both atmospherists and astrophysicists, the hydroxyl OH and the mercapto SH radicals have been chosen. The photomixing technique which can access the largest range of THz frequencies ...<br/><br/>S Eliet, M.-A. Martin-Drumel, M Guinet, F Hindle, G Mouret, R Bocquet, A Cuisset (2011) <i>Journal of Molecular Structure</i> <i></i> <i>http://www.scopus.com/inward/record.url?eid=2-s2.0-82755160752&partnerID=40&md5=b78e0bcb71d6efd50534732bdc59a225</i> 1006: 1-3 13-19<br/>

http://publicationslist.org/francis.hindle/refid39 2012-11-22T10:50:08Z

It is shown from accurate on-wafer measurement that continuous wave output powers of 1.2 mW at 50 GHz and 0.35 mW at 305 GHz can be generated by photomixing in a low temperature grown GaAs photoconductor using a metallic mirror Fabry-Pérot cavity. The output power is improved by a factor of about 100 as compared to the previous works on GaAs photomixers. A satisfactory agreement between the theor...<br/><br/>E Peytavit, S Lepilliet, F Hindle, C Coinon, T Akalin, G Ducournau, G Mouret, J.-F. Lampin (2011) <i>Applied Physics Letters</i> <i></i> <i>http://www.scopus.com/inward/record.url?eid=2-s2.0-82955240982&partnerID=40&md5=e38c118c52dff27a43fb8041090f18e7</i> 99: 22 <br/>

http://publicationslist.org/francis.hindle/refid30 2011-01-04T08:56:20Z

The alkali metal halide doping of gallium-sulfide glasses yields improvements in the optical, thermal and glass forming properties. To understand these improvements, the short-range order of xCsCl(1 - x)Ga2S3 glasses was probed by Raman spectroscopy. Raman spectra have been interpreted using density functional theory (DFT) harmonic frequency calculations on specific clusters of GaS4H4 and/or GaS3H...<br/><br/>Arnaud Cuisset, Francis Hindle, Jacky Laureyns, Eugène Bychkov (2010) <i>Journal of Raman Spectroscopy</i> 41: 9 1050-1058<br/>

http://publicationslist.org/francis.hindle/refid31 2011-01-04T09:06:30Z

We report the first successful high-resolution gas phase study of the “parallel” band of DMSO at 380 cm1 associated with the ν11 bending vibrational mode. The spectrum was recorded with a resolution of 0.0015 cm1 using the AILES beamline of the SOLEIL synchrotron source, the IFS 125 FTIR spectrometer and a multipass cell providing an optical path of 150 m. The rotational constants and centri...<br/><br/>Arnaud Cuisset, Lia Nanobashvili, Irina Smirnova, Robin Bocquet, Francis Hindle, Gaël Mouret, Olivier Pirali, Pascale Roy and Dmitrií A. Sadovskií (2010) <i>Chemical Physics Letters</i> 492: 1-3 30-34<br/>

http://publicationslist.org/francis.hindle/refid33 2011-01-04T09:45:54Z

The high brilliance of the AILES beamline at the SOLEIL synchrotron facility has been exploited for the study of the gas-phase vibrational spectra of weakly volatile organophosphorous compounds. The propagation of the synchrotron radiation in long path length gas cells allowed improvements in the sensitivity limits and spectral coverage compared with a previous study, performed by our group with c...<br/><br/>Smirnova, I.N., Cuisset, A., Hindle, F , Mouret, G. , Bocquet, R., Pirali, O., Roy, P. (2010) <i> Journal of Physical Chemistry B </i> 114: 50 16936-16947<br/>

http://publicationslist.org/francis.hindle/refid26 2009-04-28T10:30:44Z

A standard DFB diode laser operating at 1.55 mm has been used with an EDFA to construct a hybrid cw-THz spectrometer. Frequency steps of as small as 4 MHz are demonstrated by current control whereas larger spectra in excess of 400 GHz have been realized using temperature control. <br/><br/>Francis Hindle, Pascal Szriftgiser, Denis Bacquet, Chun Yang, Gael Mouret, Robin Bocquet (2009) <i>Microwave and Optical Technology Letters</i> 51: 4 991 - 994<br/>

http://publicationslist.org/francis.hindle/refid27 2012-11-22T10:50:23Z

A transverse electromagnetic horn antenna is monolithically integrated with a low temperature grown GaAs vertical photodetector on a silicon substrate forming a vertically integrated photomixer. Continuous-wave terahertz radiation is generated at frequencies up to 3.5 THz with a power level reaching 20 nW around 3 THz. Microwave and material concepts allow both qualitative and quantitative explana...<br/><br/>E Peytavit, J F Lampin, F Hindle, C Yang, G Mouret (2009) <i>Applied Physics Letters</i> 95: 16 <br/>

http://publicationslist.org/francis.hindle/refid28 2009-11-13T12:40:58Z

A review is provided of sources and detectors that can be employed in the THz range before the description of an opto-electronic source of monochromatic THz radiation. The realized spectrometer has been applied to gas phase spectroscopy. Air-broadening coefficients of HCN are determined and the insensitivity of this technique to aerosols is demonstrated by the analysis of cigarette smoke. A multip...<br/><br/>Francis Hindle, Chun Yang, Gael Mouret, Arnaud Cuisset, Robin Bocquet, Jean-François Lampin, Karine Blary, Emilien Peytavit, Tahsin Akalin, Guillaume Ducournau (2009) <i>Sensors</i> 9: 11 9039-9057<br/>

http://publicationslist.org/francis.hindle/refid29 2009-11-18T08:28:13Z

A frequency doubled erbium doped modelocked fiber frequency comb is used to implement a THz photomixing synthesizer. The useful THz linewidth is in order of 150 kHz and has been assessed along with the frequency accuracy by spectroscopic measurements demonstrating a relative accuracy of 10−8 at frequencies around 1 THz. The THz synthesizer is used to implement a THz spectrometer to study the rot...<br/><br/>Gaël Mouret, Francis Hindle, Arnaud Cuisset, Chun Yang, Robin Bocquet, Michel Lours, and Daniele Rovera (2009) <i>Optics Express</i> 17: 22031-22040<br/>

http://publicationslist.org/francis.hindle/refid21 2012-11-22T10:51:09Z

Sulphide glasses doped with rare-earth ions have been demonstrated to be suitable for photonic applications such as optical amplifiers, up-converters and fiber lasers. The substitution of metal halides into the glass network has been shown to result glasses with desirable properties in terms of quantum efficiency and fiber manufacture [J.R. Hector, J. Wang, D. Brady, M. Kluth, D.W. Hewak, W.S. Bro...<br/><br/>F Hindle, M Miloshova, E Bychkov, C J Benmore, A C Hannon (2008) <i>Journal of Non-Crystalline Solids</i> 354: 2-9 134-137<br/>

http://publicationslist.org/francis.hindle/refid20 2012-11-22T10:50:38Z

Recent advances in the development of monochromatic continuous-wave terahertz sources suitable for high resolution gas phase spectroscopy and pollution monitoring are reviewed. Details of a source using an ultra fast opto-electronic photomixing element are presented. The construction of a terahertz spectrometer using this source has allowed spectroscopic characterisation and application studies to...<br/><br/>Francis Hindle, Arnaud Cuisset, Robin Bocquet, Gael Mouret (2008) <i>Comptes Rendus Physique</i> 9: 2 262-275<br/>

http://publicationslist.org/francis.hindle/refid22 2008-10-27T10:40:59Z

A terahertz time domain spectroscopy experiment is used to study the coherent re-emission after exciting more than 60 energy rotational states of OCS molecules in gas phase. Due to the regular structure of the absorption spectrum of such linear molecules, a set of subsequent pulses separated by 82.6 ps is re-radiated from the vapour and recorded up to 450 ps. A model based on a linear response of ...<br/><br/>D. Bigourd, G. Mouret, A. Cuisset, F. Hindle, E. Fertein, R. Bocquet (2008) <i>Optics Communications</i> 281: 11 3111-3119<br/>

http://publicationslist.org/francis.hindle/refid23 2008-10-27T10:39:59Z

The room-temperature nitrogen- and oxygen-broadening coefficients of hydrogen cyanide spectral lines have been measured in the 0.5–3 THz (17–100 cm−1) frequency range (purely rotational transitions with 5less-than-or-equals, slantJless-than-or-equals, slant36) by a continuous-wave terahertz spectrometer based on a photomixing source. An improved version of the Robert and Bonamy semiclassical...<br/><br/>Chun Yang, Jeanna Buldyreva, Iouli E. Gordon, François Rohart, Arnaud Cuisset, Gael Mouret, Robin Bocquet, Francis Hindle (2008) <i>Journal of Quantitative Spectroscopy & Radiative Transfer,</i> 109: 2857–2868<br/>

http://publicationslist.org/francis.hindle/refid24 2008-10-27T10:42:37Z

A transverse electromagnetic horn antenna is monolithically integrated with a standard ultrafast interdigitated electrode photodetector on low-temperature-grown GaAs. Continuous-wave terahertz radiation is generated at frequencies up to 2 THz with a maximum power of approximately 1 µW at 780 GHz. Experimental variations in the terahertz power as function of the frequency are explained by means of...<br/><br/>E. Peytavit, A. Beck, T. Akalin, J.-F. Lampin, F. Hindle, C. Yang and G. Mouret, (2008) <i>Applied Physics Letters </i> 93: 11 111108<br/>

http://publicationslist.org/francis.hindle/refid25 2008-10-27T10:43:29Z

The fabrication of InGaAs/InP uni-travelling-carrier photodiodes integrated with broadband horn antennas and demonstration of photomixing up to 1.8 THz are reported. A radiated power of 1.1 µW at 940 GHz was measured for a photocurrent of only 2.75 mA (50 mW optical power), demonstrating the high efficiency of the device. The conversion efficiency obtained has been increased by more than a decade...<br/><br/>A. Beck, G. Ducournau, M. Zaknoune, E. Peytavit, T. Akalin, J.F. Lampin, F. Mollot, F. Hindle, C. Yang, and G. Mouret (2008) <i>Electronics Letters </i> 44: 22 1320-1322<br/>

http://publicationslist.org/francis.hindle/refid15 2008-01-14T16:41:30Z

Terahertz time domain spectroscopy and photomixing have been used alongside one another for the detection and the quantification of small polar species in mainstream cigarette smoke. The broadband submillimeter source used in time domain spectroscopy allowed a rapid and simultaneous detection of several pure rotational transitions of hydrogen cyanide (HCN) and carbon monoxide (CO) in realistic con...<br/><br/>D Bigourd, A Cuisset, F Hindle, S Matton, R Bocquet, G Mouret, F Cazier, D Dewaele, H Nouali (2007) <i>Applied Physics B-Lasers and Optics</i> 86: 4 579-586<br/>

http://publicationslist.org/francis.hindle/refid18 2008-01-14T16:42:05Z

This paper describes the performance of a coherent homodyne spectrometer to preserve phase information of the THz electric field. Thereby, optical constants of a high resistive silicon sample are presented between 200 GHz and 1.2 THz. The phase shift introduced by such a thick sample is much greater than 2 pi, and the manner of solving the ambiguity of the modulo 2 pi is discussed and can be used ...<br/><br/>G Mouret, S Matton, R Bocquet, D Bigourd, F Hindle, A Cuisset, J F Lampin, K Blary, D Lippens (2007) <i>Applied Physics B-Lasers and Optics</i> 89: 2-3 395-399<br/>

http://publicationslist.org/francis.hindle/refid1 2008-10-27T09:22:35Z

Continuous-wave terahertz spectroscopy by photomixing is applied to the analysis of mainstream cigarette smoke. Using the wide tunability of the source, spectral signatures of hydrogen cyanide (HCN), carbon monoxide (CO), formaldehyde (H2CO), and water (H2O) have been observed from 500 to 2400 GHz. The fine spectral purity allows direct concentration measurement from the pure rotational transition...<br/><br/>D Bigourd, A Cuisset, F Hindle, S Matton, E Fertein, R Bocquet, G Mouret (2006) <i>Optics Letters</i> 31: 15 2356-2358<br/>

http://publicationslist.org/francis.hindle/refid17 2008-01-14T16:44:53Z

A spectrometer operating in the 100-2000 GHz range and allowing for absolute line strength measurements has been developed. The continuous wave terahertz radiation is generated by mixing two Ti:Sapphire laser beams in a vertically integrated low temperature grown GaAs (LTG-GaAs) photomixer. Pure rotational lines of (OCS)-O-16-C-12-S-32 in the ground vibrational state have been considered for J val...<br/><br/>S Matton, F Rohart, R Bocquet, G Mouret, D Bigourd, A Cuisset, F Hindle (2006) <i>Journal of Molecular Spectroscopy</i> 239: 2 182-189<br/>

http://publicationslist.org/francis.hindle/refid19 2008-10-27T09:29:49Z

Photomixing and coherent homodyne detection have been used to measure the absorption and dispersion of dielectric media. The signal to noise ratio was sufficient to allow the dispersion and absorption characteristics of a polytetrafluoroethylen (Teflon) sample to be extracted up to a frequency of 1.6 THz. Due to the relatively narrow spectral linewidth of terahertz source, estimated to be in order...<br/><br/>G Mouret, S Matton, R Bocquet, D Bigourd, F Hindle, A Cuisset, J F Lampin, D Lippens (2006) <i>Applied Physics Letters</i> 88: 18 181105<br/>

http://publicationslist.org/francis.hindle/refid16 2008-10-27T09:24:25Z

D Bigourd, G Mouret, S Matton, R Bocquet, E Fertein, A Cuisset, F Hindle, W Chen (2006) <i>Journal De Physique Iv</i> 135: 91-92<br/>

http://publicationslist.org/francis.hindle/refid12 2008-10-27T09:25:31Z

Design requirements for an 8000 frame/s dual-wavelength ratiometric chemical species tomography system, intended for hydrocarbon vapor imaging in one cylinder of a standard automobile engine, are examined. The design process is guided by spectroscopic measurements on iso-octane and by comprehensive results from laboratory phantoms and research engines, including results on temporal resolution perf...<br/><br/>P Wright, C A Garcia-Stewart, S J Carey, F P Hindle, S H Pegrum, S M Colbourne, P J Turner, W J Hurr, T J Litt, S C Murray, S D Crossley, K B Ozanyan, H McCann (2005) <i>Applied Optics</i> 44: 31 6578-6592<br/>

http://publicationslist.org/francis.hindle/refid8 2009-07-09T20:17:42Z

The photoinscription of standard telecommunications glass materials by femtosecond radiation is shown to induce significant mesoscopic structure. The scattering intensity for irradiated glasses is close to two orders of magnitude greater than that of unexposed material. Anomalous small-angle X-ray scattering (ASAXS) around the germanium K-edge for the silica and germanium doped silica regions of a...<br/><br/>F Hindle, E Fertein, S Seifert, C Przygodski, R Bocquet, M Douay, E Bychkov (2005) <i>Journal of Non-Crystalline Solids</i> 351: 27-29 2200-2204<br/>

http://publicationslist.org/francis.hindle/refid3 2008-10-27T09:32:31Z

The tomographic measurement of the residual stress profile in femtosecond-laser irradiated standard SMF-28 germanium-doped telecommunication fiber is demonstrated. The fiber is irradiated with weakly focused pulses to realize long-period fiber gratings. In the irradiated grating regions, an asymmetrical increase in axial core stress up to 6.2 kg/mm(2) is found. The increase in stress is attributed...<br/><br/>F Durr, H G Limberger, R P Salathe, F Hindle, M Douay, E Fertein, C Przygodzki (2004) <i>Applied Physics Letters</i> 84: 24 4983-4985<br/>

http://publicationslist.org/francis.hindle/refid7 2008-10-27T09:35:51Z

Long-period gratings (LPGs) have been inscribed by femtosecond laser radiation into fiber optics with Ge-doped and pure silica cores. Grating parameters of 16-dB rejection and 0.3-dB insertion loss are obtained for a Ge-doped fiber core. Numerical calculation of the transmission characteristics yielded a good correlation between the measured and synthetic data showing that an induced refractive in...<br/><br/>F Hindle, E Fertein, C Przygodzki, F Durr, L Paccou, R Bocquet, P Niay, H G Limberger, M Douay (2004) <i>Ieee Photonics Technology Letters</i> 16: 8 1861-1863<br/>

http://publicationslist.org/francis.hindle/refid10 2008-10-27T09:37:34Z

The generation of continuous coherent THz radiation by mixing two cw Ti:Sa laser beams with a well-controlled frequency separation for a new scheme of vertically integrated low temperature grown GaAs (LTG-GaAs) spiral photomixer is reported. For this new photomixer device used in THz emission, the LTG-GaAs active layer is sandwiched between the two parallel metal plates of a high-speed photodetect...<br/><br/>G Mouret, S Matton, R Bocquet, F Hindle, E Peytavit, J F Lampin, D Lippens (2004) <i>Applied Physics B-Lasers and Optics</i> 79: 6 725-729<br/>

http://publicationslist.org/francis.hindle/refid14 2008-01-14T16:10:42Z

C. Przygodzki, E Fertein, F. Hindle, E. Bychkov, M. Tassou, H. Delbarre & R. Bocquet (2004) <i>Applied Physics B</i> Vol. 78 Supplement 1: s127-s134<br/>

http://publicationslist.org/francis.hindle/refid11 2008-10-27T09:49:20Z

We report on an optical fiber probe, coupled to a 404-nm laser diode, as a fluorescence sensor for monitoring of commercial gasolines. The principle of operation of the sensor is based on quantifying the intensity of the Stokes-shifted fluorescence from some of the heavier polycyclic aromatic hydrocarbons CxHy, (x,y) greater than or equal to (14,10) present in gasolines as minor constituents. The ...<br/><br/>K B Ozanyan, T L Yeo, F P Hindle, N R J Poolton, H McCann, K L Tan (2004) <i>Ieee Sensors Journal</i> 4: 5 681-690<br/>

http://publicationslist.org/francis.hindle/refid6 2008-10-27T09:47:45Z

A fluorescence-based fiber-optic probe is implemented for use with a blue/UV laser diode to form a rugged, nonintrusive fuel sensor. Measurements are obtained from a test vessel controlled to replicate the temperature and pressure environment in a typical combustion engine. A fuel containing a specific polycyclic aromatic hydrocarbon (perylene, C20H12) is used to obtain wavelength resolved informa...<br/><br/>F P Hindle, T L Yeo, K B Ozanyan, N R J Poolton, H McCann (2003) <i>Ieee Sensors Journal</i> 3: 6 766-773<br/>

http://publicationslist.org/francis.hindle/refid13 2008-10-27T09:52:58Z

The recent availability of reliable and relatively low-cost GaN based semi-conductor laser diode sources emitting at 404 nm has opened many new areas for fluorescence based measurements. This article characterizes the fluorescence behavior of commercial liquid-phase gasoline samples using such excitation sources. Comparison is drawn with the emission when excited using broad-band sources at shorte...<br/><br/>T L Yeo, K B Ozanyan, F Hindle, N R J Poolton, H McCann (2002) <i>Applied Spectroscopy</i> 56: 7 846-851<br/>

http://publicationslist.org/francis.hindle/refid4 2008-10-27T09:56:57Z

We report an All-Opto-Electronic tomography system that is sensitive to hydrocarbon vapour distribution, or liquid spray distribution, with temporal resolution of over 3000 frames per second. A tomography system comprising 32 channels has been built and tested. For chemical sensitivity to saturated hydrocarbons, we exploit the principle of Near Infra-Red (NIR) absorption at 1700 nm relative to a r...<br/><br/>F P Hindle, S J Carey, K B Ozanyan, D E Winterbone, E Clough, H McCann (2002) <i>Technisches Messen</i> 69: 7-8 352-357<br/>

http://publicationslist.org/francis.hindle/refid5 2008-10-27T09:44:58Z

The spatial distribution of chemical species can be a critical determinant of chemical reactor performance. The spatial variation of air-fuel ratio in a combustion chamber of an internal combustion engine has significant influence on fuel efficiency and emissions. We report the development of a fiber-based near-Infrared absorption tomography system, to measure the distribution of hydrocarbons in c...<br/><br/>F P Hindle, S J Carey, K Ozanyan, D E Winterbone, E Clough, H McCann (2001) <i>Journal of Electronic Imaging</i> 10: 3 593-600<br/>

http://publicationslist.org/francis.hindle/refid9 2008-10-27T09:40:59Z

A novel concept is introduced for application to chemical species tomography. The technique is based on fluorescence, using collimated sources and detectors. It does not require a complex inversion step to calculate the distribution of the desired parameter. Suitable gaseous fuels, dopants, and sources are assessed for potential use in a fuel imaging system within an internal combustion engine. Th...<br/><br/>F Hindle, H McCann, K B Ozanyan (2000) <i>Chemical Engineering Journal</i> 77: 1-2 127-135<br/>

http://publicationslist.org/francis.hindle/refid2 2008-10-27T09:41:32Z

The spatial distribution of chemical species can be a critical determinant of the performance of chemical reactors. One such reactor is the combustion chamber of the Internal Combustion engine. This paper presents a design for the measurement of hydrocarbon concentration distribution within a running engine using near infra-red absorption tomography. The fundamentals of the technique, and design p...<br/><br/>S J Carey, H McCann, F P Hindle, K B Ozanyan, D E Winterbone, E Clough (2000) <i>Chemical Engineering Journal</i> 77: 1-2 111-118<br/>