Littérature scientifique sur le sujet « Terahertz gas phase spectroscopy »
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Articles de revues sur le sujet "Terahertz gas phase spectroscopy"
Smith, Ryan M., et Mark A. Arnold. « Selectivity of Terahertz Gas-Phase Spectroscopy ». Analytical Chemistry 87, no 21 (15 octobre 2015) : 10679–83. http://dx.doi.org/10.1021/acs.analchem.5b03028.
Texte intégralLu, Jian, Yaqing Zhang, Harold Y. Hwang, Benjamin K. Ofori-Okai, Sharly Fleischer et Keith A. Nelson. « Nonlinear two-dimensional terahertz photon echo and rotational spectroscopy in the gas phase ». Proceedings of the National Academy of Sciences 113, no 42 (4 octobre 2016) : 11800–11805. http://dx.doi.org/10.1073/pnas.1609558113.
Texte intégralKilcullen, Patrick, I. D. Hartley, E. T. Jensen et M. Reid. « Terahertz Time Domain Gas-phase Spectroscopy of Carbon Monoxide ». Journal of Infrared, Millimeter, and Terahertz Waves 36, no 4 (16 janvier 2015) : 380–89. http://dx.doi.org/10.1007/s10762-014-0139-z.
Texte intégralHindle, Francis, Lotta Kuuliala, Meriem Mouelhi, Arnaud Cuisset, Cédric Bray, Mathias Vanwolleghem, Frank Devlieghere, Gaël Mouret et Robin Bocquet. « Monitoring of food spoilage by high resolution THz analysis ». Analyst 143, no 22 (2018) : 5536–44. http://dx.doi.org/10.1039/c8an01180j.
Texte intégralNeumaier, P. F. X., K. Schmalz, J. Borngräber, R. Wylde et H. W. Hübers. « Terahertz gas-phase spectroscopy : chemometrics for security and medical applications ». Analyst 140, no 1 (2015) : 213–22. http://dx.doi.org/10.1039/c4an01570c.
Texte intégralVogt, Dominik Walter, Angus Harvey Jones et Rainer Leonhardt. « Terahertz Gas-Phase Spectroscopy Using a Sub-Wavelength Thick Ultrahigh-Q Microresonator ». Sensors 20, no 10 (25 mai 2020) : 3005. http://dx.doi.org/10.3390/s20103005.
Texte intégralHindle, Francis, Robin Bocquet, Anastasiia Pienkina, Arnaud Cuisset et Gaël Mouret. « Terahertz gas phase spectroscopy using a high-finesse Fabry–Pérot cavity ». Optica 6, no 12 (21 novembre 2019) : 1449. http://dx.doi.org/10.1364/optica.6.001449.
Texte intégralBurmistrov E. R. et Avakyants L. P. « Determination of 2DEG parameters in LED heterostructures with three quantum wells In-=SUB=-x-=/SUB=-Ga-=SUB=-1-x-=/SUB=-N/GaN by terahertz time-domain spectroscopy (THz-TDs) ». Physics of the Solid State 65, no 2 (2023) : 179. http://dx.doi.org/10.21883/pss.2023.02.55399.503.
Texte intégralMihrin, D., P. W. Jakobsen, A. Voute, L. Manceron et R. Wugt Larsen. « High-resolution synchrotron terahertz investigation of the large-amplitude hydrogen bond librational band of (HCN)2 ». Physical Chemistry Chemical Physics 20, no 12 (2018) : 8241–46. http://dx.doi.org/10.1039/c7cp08412a.
Texte intégralБурмистров, Е. Р., et Л. П. Авакянц. « Исследование параметров двумерного электронного газа в квантовых ямах InGaN/GaN методом терагерцового плазмонного резонанса ». Физика и техника полупроводников 55, no 11 (2021) : 1059. http://dx.doi.org/10.21883/ftp.2021.11.51561.9685.
Texte intégralThèses sur le sujet "Terahertz gas phase spectroscopy"
Zhang, Yaqing Ph D. Massachusetts Institute of Technology. « Two-dimensional terahertz rotational spectroscopy in the gas phase ». Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122715.
Texte intégralCataloged from PDF version of thesis.
Includes bibliographical references.
Two-dimensional (2D) coherent spectroscopy has been developed to study molecular dynamics and structures for decades, but its extension into the terahertz (THz) regime remains rare. In this thesis, I describe several experiments using two-dimensional terahertz rotational spectroscopy. Employing intense THz electromagnetic fields and the differential chopping technique, we have extended multi-dimensional coherent spectroscopy into the THz regime. We have observed rotational dynamics of linear, symmetric-top, and asymmetric-top molecular species, indicating that 2D THz spectroscopy is an incisive tool for investigating collective quantum effects of the rotational degree of freedom. Based on the quantum mechanical rigid rotor model, we have developed simulation and calculation approaches to disentangling spectroscopic signals from molecular rotations.
We have shown ultrafast 2D THz photon echo spectroscopy of gaseous acetonitrile samples, revealing J-state-resolved rotational dynamics in symmetric-top molecular rotors. We have revealed nonlinear rotational couplings and many-body interactions in water vapor, uncovering the strongly correlated nature of rotational quantum states in water molecules. Additionally, experimental evidence of linear and nonlinear THz spectroscopy of stable water dimers in the vicinity of atmospheric conditions has been observed. We have reported dual-type rotational couplings and a propensity for the K-state-dependent cross-peaks in sulfur dioxide, highlighting distinct rotational properties in slightly asymmetric-top molecules. We have measured the quartic THz effect using two-dimensional THz-Raman hybrid spectroscopy, opening the way for understanding and applications of higher-even-order THz-matter coherences beyond the linear and quadratic THz field effects.
Utilizing the density matrix and time propagation approaches, we have developed a set of simulation and calculation methodologies to characterize rotational dynamics in the gas phase based on the quantum mechanical rigid-rotor model. Our work shows the remarkable capability of 2D THz spectroscopy to interrogate rotational dynamics in the gas phase, laying a foundation for understanding and manipulation of nonlinear light-molecule interactions via multi-dimensional coherent THz spectroscopy.
by Yaqing Zhang.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Department of Chemistry
Mahé, Jérôme. « Far infrared/Tera-Hertz spectroscopy in the gas phase : experiments and theory ». Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLE043/document.
Texte intégralInfrared spectroscopy allows the assignment of three dimensional structures of molecular systems, by comparing experimental and theoretical spectra. Our investigations take place in the gas phase, where molecules and clusters are free of intermolecular interactions.Our work combines experimental IR-UV ion dip spectroscopy and theoretical DFT-MD anharmonic spectroscopy. The infrared spectrum is calculated for low energy 3Dstructures and the best match between theory and experiment provides the information about the structure present in the experimental conditions.We demonstrate for several systems that far infrared/THz spectroscopy (<800 cm-1, <24THz) allows conformational assignment without ambiguities, contrary to the more traditional 1000-4000 cm-1 range. Systems investigated here are dipeptides, a β-sheet model, phenol derivatives (also complexe dwith water molecules), DNA base pairs, all these structures being built on intra-/intermolecular hydrogen bonds
Elmaleh, Coralie. « Développement d’un prototype ultrasensible d’analyse de gaz dans le domaine submillimétrique ». Electronic Thesis or Diss., Littoral, 2024. http://www.theses.fr/2024DUNK0698.
Texte intégralThis thesis explores the technological development of a spectroscopic experiment in the submillimeter range, also known as Terahertz (THz). This spectral band stands out for its ability to precisely resolve molecular doublets, enabling clear and precise identification of complex gas mixtures, even when other wavelengths might fail.Although the THz region offers exceptional resolving power, spectrometers operating in this region often face sensitivity challenges due to the development of technology in this band. Thanks to an innovative approach, we have implemented the first Cavity Ring-Down Spectroscopy (CRDS) experiment capable of quantifying compounds to ppb precision. The study is concentrated between 550 GHz and 650 GHz, a window of the THz spectrum that not only offers unrivalled resolution and molecular sensitivity, but also possesses the ability to penetrate non-conducting materials while being non-ionizing. These properties position this technology at the cutting edge of analysis tools, promising a plethora of applications, from fundamental research to industrial applications
Marcinkiewicz, Michal. « Terahertz Spectroscopy of Topological Phase Transitions in HgCdTe-based systems ». Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTS068/document.
Texte intégralThis thesis presents an investigation of different topological phases in mercury-cadmium-telluride (HgCdTe or MCT) based heterostructures. These solid state systems are indeed a perfect playground to study topological states, as their band structure can be easily varied from inverted to non-inverted, by changing internal or external parameters.If a system has an inverted band ordering, its electronic structure has a non-trivial topology. One cannot change its topological order without closing the band gap, which is inevitably accompanied with the appearance of massless particles in the bulk. A system, that has an inverted band structure and a finite gap in which the Fermi level is positioned, is called a topological insulator. These novel materials are insulators in the bulk, but host gapless metallic states with linear dispersion relation at boundaries, protected against disorder and backscattering on non-magnetic impurities. These states arise at the interfaces between materials characterized by a different topological order. A 2D topological insulator is thus characterized by a set of 1D spin-polarized channels of conductance at the edges, while a 3D topological insulator supports spin-polarized 2D Dirac fermions on its surfaces.The 2D and 3D massless fermions have already been demonstrated experimentally in HgCdTe-based heterostructures. However, the topological phase transitions during which the massless particles appear remain barely explored. The HgCdTe band structure can be tuned from inverted to non-inverted using chemical composition, pressure, temperature, or quantum confinement. These parameters therefore allow to probe the system in the vicinity of different topological phase transitions. In this thesis, the use of temperature as continuous band gap tuning parameter allows to study the appearance and the parameters of semi-relativistic 2D Dirac and 3D Kane fermions emerging at the points of phase transitions.The systems investigated were Hg$_{1-x}$Cd$_x$Te bulk systems and HgTe/CdTe quantum wells characterized by an inverted and regular band order, and strained HgTe films which can be considered as 3D topological insulators with a residual quantum confinement. All these systems exhibit topological properties, and the experimental results are interpreted according to theoretical predictions based on the Kane model. This thesis is complemented by an overview and the preliminary results obtained on a different compound -- a InAs/GaSb broken-gap quantum well, which was also identified as a topological insulator. The structures were studied by means of terahertz and mid-infrared magneto-transmission spectroscopy in a specifically designed experimental system, in which temperature could be tuned in a broad range
Colarusso, Pina. « Selected projects in gas-phase spectroscopy ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq22196.pdf.
Texte intégralPuskar, Ljiljana. « Gas phase ligand field photofragmentation spectroscopy ». Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394258.
Texte intégralPhillips, Alexander John. « High resolution and sensitivity gas phase spectroscopy ». Thesis, Queen Mary, University of London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267656.
Texte intégralFaulk, James Donald. « Spectroscopy and photodynamics of gas phase ions ». Case Western Reserve University School of Graduate Studies / OhioLINK, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=case1055789262.
Texte intégralZhang, Keqing. « Infrared spectroscopy of molecules in the gas phase ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq21402.pdf.
Texte intégralSchubert, J. E. « High-resolution spectroscopy of small gas-phase radicals ». Thesis, University of Southampton, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354301.
Texte intégralLivres sur le sujet "Terahertz gas phase spectroscopy"
Simpson, Matthew J. Two Studies in Gas-Phase Ion Spectroscopy. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23129-2.
Texte intégralRijs, Anouk M., et Jos Oomens, dir. Gas-Phase IR Spectroscopy and Structure of Biological Molecules. Cham : Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19204-8.
Texte intégralC, Rhoderick G., Johnson P. A et National Institute of Standards and Technology (U.S.), dir. Infrared absorptivity temperature dependence of gas phase methanol and sulfur dioxide. Gaithersburg, Md : U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 2001.
Trouver le texte intégralWright, Timothy G. Modern Gas-Phase Photoelectron Spectroscopy. Oxford University Press, 2005.
Trouver le texte intégralEland, J. H. D. Photoelectron Spectroscopy : An Introduction to Ultraviolet Photoelectron Spectroscopy in the Gas Phase. Elsevier Science & Technology Books, 2013.
Trouver le texte intégralRijs, Anouk M., et Jos Oomens. Gas-Phase IR Spectroscopy and Structure of Biological Molecules. Springer London, Limited, 2015.
Trouver le texte intégralRijs, Anouk M., et Jos Oomens. Gas-Phase IR Spectroscopy and Structure of Biological Molecules. Springer, 2016.
Trouver le texte intégralRijs, Anouk M., et Jos Oomens. Gas-Phase IR Spectroscopy and Structure of Biological Molecules. Springer, 2015.
Trouver le texte intégralSitumeang, Rudy T. M. Gas phase x-ray photoelectron spectroscopy of some ketone compounds. 1994.
Trouver le texte intégralSitumeang, Rudy T. M. Gas phase x-ray photoelectron spectroscopy of some ketone compounds. 1994.
Trouver le texte intégralChapitres de livres sur le sujet "Terahertz gas phase spectroscopy"
Dragoman, Daniela. « Phase-Space Processing of Terahertz Radiation ». Dans Terahertz Spectroscopy and Imaging, 117–49. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29564-5_6.
Texte intégralOttinger, Ch. « Workshop “Spectroscopy of Ions” ». Dans Fundamentals of Gas Phase Ion Chemistry, 219–35. Dordrecht : Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3518-4_14.
Texte intégralde Vries, Mattanjah S. « Gas-Phase IR Spectroscopy of Nucleobases ». Dans Topics in Current Chemistry, 271–97. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/128_2014_577.
Texte intégralGabelica, Valérie, et Frédéric Rosu. « Gas-Phase Spectroscopy of Nucleic Acids ». Dans Physical Chemistry in Action, 103–30. Berlin, Heidelberg : Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54842-0_5.
Texte intégralLichtenberger, Dennis L., et Glen Eugene Kellogg. « Characterization of Metal Complex Positive Ions in the Gas Phase by Photoelectron Spectroscopy ». Dans Gas Phase Inorganic Chemistry, 245–77. Boston, MA : Springer US, 1989. http://dx.doi.org/10.1007/978-1-4684-5529-8_8.
Texte intégralSimpson, Matthew J. « Vacuum Ultraviolet Negative Photoion Spectroscopy of SF5Cl ». Dans Two Studies in Gas-Phase Ion Spectroscopy, 65–74. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23129-2_5.
Texte intégralLe Boiteux, S., P. Simoneau, D. Bloch et M. Ducloy. « Nonlinear Doppler-free Spectroscopy of Gas-Phase Atoms at Glass-Vapor Interfaces ». Dans Laser Spectroscopy VIII, 267–71. Berlin, Heidelberg : Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-540-47973-4_78.
Texte intégralDessent, Caroline E. H., et Mark A. Johnson. « Fundamentals of Negative Ion Photoelectron Spectroscopy ». Dans Fundamentals and Applications of Gas Phase Ion Chemistry, 287–306. Dordrecht : Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4754-5_11.
Texte intégralWolfrum, Jürgen. « Laser Stimulation and Observation of Elementary Reactions in the Gas Phase ». Dans Methods of Laser Spectroscopy, 353–66. Boston, MA : Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-9459-8_47.
Texte intégralSimpson, Matthew J. « Introduction and Background Information ». Dans Two Studies in Gas-Phase Ion Spectroscopy, 1–14. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23129-2_1.
Texte intégralActes de conférences sur le sujet "Terahertz gas phase spectroscopy"
Neumaier, Philipp, Klaus Schmalz, Johannes Borngraber, Dietmar Kissinger et Heinz-Wilhelm Hubers. « Terahertz gas-sensors : Gas-phase spectroscopy and multivariate analysis for medical and security applications ». Dans 2015 IEEE Sensors. IEEE, 2015. http://dx.doi.org/10.1109/icsens.2015.7370673.
Texte intégralLu, Jian, Yaqing Zhang, Harold Y. Hwang, Benjamin K. Ofori-Okai, Sharly Fleischer et Keith A. Nelson. « Two-dimensional Terahertz Photon Echo and Rotational Spectroscopy in the Gas Phase ». Dans International Conference on Ultrafast Phenomena. Washington, D.C. : OSA, 2016. http://dx.doi.org/10.1364/up.2016.utu1a.6.
Texte intégralNeumaier, Philipp F. X., Klaus Schmalz, Johannes Borngraber et Heinz-Wilhelm Hubers. « Application of multivariate analysis to gas-phase spectroscopy at 245 GHz ». Dans 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz). IEEE, 2014. http://dx.doi.org/10.1109/irmmw-thz.2014.6956468.
Texte intégralMehta, Yash, Sam Razavian, Kevin Schwarm, R. M. Spearrin et Aydin Babakhani. « Terahertz Gas-phase Spectroscopy of CO using a Silicon-based Picosecond Impulse Radiator ». Dans CLEO : Science and Innovations. Washington, D.C. : OSA, 2020. http://dx.doi.org/10.1364/cleo_si.2020.sm2f.7.
Texte intégralHagelschuer, T., M. Wienold, H. Richter, N. Rothbart et H. W. Hubers. « High-Resolution terahertz gas-phase spectroscopy based on external optical feedback in a quantum cascade laser ». Dans 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2017. http://dx.doi.org/10.1109/irmmw-thz.2017.8067144.
Texte intégralNelson, Keith A. « Nonlinear Terahertz Spectroscopy and Coherent Control in Solid, Liquid, and Gas Phases ». Dans CLEO : QELS_Fundamental Science. Washington, D.C. : OSA, 2013. http://dx.doi.org/10.1364/cleo_qels.2013.jf2k.6.
Texte intégralYian, Liu, Huang Zhiyao, Ji Haifeng et Li Haiqing. « Solids Volume Fraction Measurement of Gas-Solid Two-Phase Flow Based on Terahertz Time-Domain Spectroscopy Technique ». Dans 2008 IEEE Instrumentation and Measurement Technology Conference - I2MTC 2008. IEEE, 2008. http://dx.doi.org/10.1109/imtc.2008.4547402.
Texte intégralHubers, H. W., S. G. Pavlov, H. Richter, A. D. Semenov, A. Tredicucci, L. Mahler, H. E. Beere et D. A. Ritchie. « High Resolution Gas Phase Spectroscopy with a Quantum Cascade Laser at 2.5 THz ». Dans >2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics. IEEE, 2006. http://dx.doi.org/10.1109/icimw.2006.368414.
Texte intégralTakeya, K., I. Kawayama, H. Murakami, K. Ohgaki et M. Tonouchi. « Terahertz spectroscopy of gas hydrates ». Dans 2010 35th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2010). IEEE, 2010. http://dx.doi.org/10.1109/icimw.2010.5612464.
Texte intégralHarrel, Shayne M., James M. Schleicher, Charles A. Schmuttenmaer, Eric Beaurepaire et Jean-Yves Bigot. « Probing Condensed Phase Dynamics with THz Emission Spectroscopy ». Dans Optical Terahertz Science and Technology. Washington, D.C. : OSA, 2005. http://dx.doi.org/10.1364/otst.2005.tub1.
Texte intégralRapports d'organisations sur le sujet "Terahertz gas phase spectroscopy"
Bozek, J. D., et A. S. Schlachter. Electron spectrometer for gas-phase spectroscopy. Office of Scientific and Technical Information (OSTI), avril 1997. http://dx.doi.org/10.2172/603596.
Texte intégralBrueck, S. R. Tunable Infrared Lasers for Gas-Phase Spectroscopy. Fort Belvoir, VA : Defense Technical Information Center, décembre 2011. http://dx.doi.org/10.21236/ada564682.
Texte intégralDuncan, M. A. Photodissociation and spectroscopy of gas phase bimetallic clusters. Office of Scientific and Technical Information (OSTI), mai 1992. http://dx.doi.org/10.2172/6395014.
Texte intégralDutta, Jyotsna M. Instrumentation for Millimeter and Submillimeter Gas Phase Spectroscopy. Fort Belvoir, VA : Defense Technical Information Center, février 1996. http://dx.doi.org/10.21236/ada305462.
Texte intégralDuncan, M. A. Photodissociation and spectroscopy of gas phase bimetallic clusters. Annual progress report. Office of Scientific and Technical Information (OSTI), mai 1992. http://dx.doi.org/10.2172/10159061.
Texte intégralBozek, J. D., P. A. Heimann et D. Mossessian. Beamline 9.0.1 - a high-resolution undulator beamline for gas-phase spectroscopy. Office of Scientific and Technical Information (OSTI), avril 1997. http://dx.doi.org/10.2172/603597.
Texte intégralDuncan, Michael A. Infrared Spectroscopy of Transition Metal-Molecular interactions in the Gas Phase. Office of Scientific and Technical Information (OSTI), novembre 2008. http://dx.doi.org/10.2172/951268.
Texte intégralDuncan, M. A. Photodissociation and spectroscopy of gas phase bimetallic clusters. Progress report for 1990--1991. Office of Scientific and Technical Information (OSTI), décembre 1991. http://dx.doi.org/10.2172/10150072.
Texte intégralDyke, J. M. Gas-Phase Photoelectron Spectroscopy of Metals and Metal Oxides of Importance in the Upper Atmosphere. Fort Belvoir, VA : Defense Technical Information Center, octobre 1987. http://dx.doi.org/10.21236/ada187771.
Texte intégralDuncan, M. A. Photodissociation and spectroscopy of gas phase bimetallic clusters. Final report, September 15, 1990--September 14, 1993. Office of Scientific and Technical Information (OSTI), décembre 1993. http://dx.doi.org/10.2172/10153770.
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