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Статті в журналах з теми "Conversions Stokes et anti-Stokes"
TAILLEUX, RÉMI. "On the energetics of stratified turbulent mixing, irreversible thermodynamics, Boussinesq models and the ocean heat engine controversy." Journal of Fluid Mechanics 638 (October 20, 2009): 339–82. http://dx.doi.org/10.1017/s002211200999111x.
Повний текст джерелаJones, Callum M. S., Adilet Zhakeyev, and Jose Marques-Hueso. "(Invited) Calibration of Upconverting Materials and Nanoprobes." ECS Meeting Abstracts MA2023-02, no. 63 (December 22, 2023): 2990. http://dx.doi.org/10.1149/ma2023-02632990mtgabs.
Повний текст джерелаIvanov, Nikolay, Marina Zasimova, Evgueni Smirnov, and Detelin Markov. "Evaluation of mean velocity and mean speed for test ventilated room from RANS and LES CFD modeling." E3S Web of Conferences 85 (2019): 02004. http://dx.doi.org/10.1051/e3sconf/20198502004.
Повний текст джерелаScherman, Michael, Joanna Barros, Rosa Santagata, Alexandre Bresson, and Brigitte Attal-Tretout. "Thermométrie Raman cohérente pour l'étude de la combustion." Photoniques, no. 96 (May 2019): 23–29. http://dx.doi.org/10.1051/photon/20199623.
Повний текст джерелаHuang, Huining, Haifeng Zhou, Juan Zhou, Tao Wang, Dapeng Huang, Yaqiang Wu, Leilei Sun, Guangjun Zhou, Jie Zhan, and Jifan Hu. "Correction: Enhanced anti-Stokes luminescence in LaNbO4:Ln3+ (Ln3+ = Yb3+, Er3+/Ho3+/Tm3+) with abundant color." RSC Advances 7, no. 31 (2017): 19305. http://dx.doi.org/10.1039/c7ra90049j.
Повний текст джерелаDeckert, Volker, Tanja Deckert-Gaudig, Dana Cialla-May, Jürgen Popp, Roland Zell, Stefanie Deinhard-Emmer, Alexei V. Sokolov, Zhenhuan Yi, and Marlan O. Scully. "Laser spectroscopic technique for direct identification of a single virus I: FASTER CARS." Proceedings of the National Academy of Sciences 117, no. 45 (October 22, 2020): 27820–24. http://dx.doi.org/10.1073/pnas.2013169117.
Повний текст джерелаWakolo, Solomon Wekesa, Hiromichi Nishiyama, Kenji Miyatake, and Junji Inukai. "Chemical States of Water in Anion Exchange Membrane for Fuel Cells Using Raman and Coherent Anti-Stokes Raman Spectroscopies." ECS Meeting Abstracts MA2023-02, no. 65 (December 22, 2023): 3163. http://dx.doi.org/10.1149/ma2023-02653163mtgabs.
Повний текст джерелаChaussard, F., N. Le Cong, B. Lavorel, V. Renard, O. Faucher, H. Tran, P. Joubert, and L. Bonamy. "Spectroscopie Raman Anti-Stokes Cohérente femtoseconde (DRASC – fs) : expériences et modélisation dans le cas du mélange H2 – N2 à basse pression." Journal de Physique IV (Proceedings) 135, no. 1 (October 2006): 155–56. http://dx.doi.org/10.1051/jp4:2006135038.
Повний текст джерелаKaminskii, A. A., L. Bohat�, P. Becker, H. J. Eichler, J. Hanuza, M. Maczka, K. Ueda, K. Takaichi, H. Rhee, and G. M. A. Gad. "Non-centrosymmetric Y(HCOO)3 � 2 H2O crystal. A new inorganic material for Raman lasers with large frequency shift of three promoting vibration modes of its [O-CH-O]- formate anions: effective high-order Stokes and anti-Stokes generation and cascaded self-frequency [?(3)(SRS) ??(2)(SHG, SFM)] and [?(2)(SHG, SFM) ??(3)(SRS)] conversions." physica status solidi (a) 201, no. 14 (November 2004): 3200–3216. http://dx.doi.org/10.1002/pssa.200406893.
Повний текст джерелаLin, Jeffrey, Carlo Scalo, and Lambertus Hesselink. "High-fidelity simulation of a standing-wave thermoacoustic–piezoelectric engine." Journal of Fluid Mechanics 808 (October 26, 2016): 19–60. http://dx.doi.org/10.1017/jfm.2016.609.
Повний текст джерелаДисертації з теми "Conversions Stokes et anti-Stokes"
Cheroura, Youcef. "Photoconversion et exaltation plasmonique de nanoparticules de β-NaGdF4 pour potentielles applications photovoltaïques sur silicium". Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2021. http://www.theses.fr/2021UCFAC023.
Повний текст джерелаA multifunctional system was developed to be used as a dual ultraviolet (UV) and near infrared (NIR) light harvester and photo-converters by Down (DS-DC) and Up Conversions (UC) in visible light to enhance the light trapping properties of thin-film solar cells. Nanorods ( 140 nm x 60 nm) of β-NaGdF4 singly doped by Eu3+, Pr3+, Er3+ and co-doped by Yb3+ were synthesized by co-precipitation method (optimized conditions: 150°C, 60 min). The structural and morphological properties were characterized by X-ray diffraction, infrared spectroscopy, Raman and electron microscopy (TEM) confirming the quality of the elaborated materials. Using the structural probe properties of the Eu3+ ion, local order was identified and discussed on the basis of Judd-Ofelt theory. The analysis of the fluorescence properties was carried out under pulsed and cw excitations. The radiative de-excitation and energy transfer channels for both DC and UC processes, occurring in each system, have been identified and discussed based on the evolution of fluorescence intensities as a function of continuous pump power and on the kinetics of luminescence decays under UV and NIR excitations. Particular attention was paid to the Er3+/Yb3+ system for which a coupling by plasmonic effect was considered with metallic nanoparticles (NPMs) of noble metals gold and silver. Depending on the nature, shape and size of the NPMs, enhancements or attenuations of fluorescence intensities, in addition in some cases to an increase in decaying rates have been observed. They are discussed considering two main processes, scattering and the Purcell effects
ZHANG, XIAO. "Excitation de la fluorescence anti-stokes de l'ion holmium trivalent dans les fluorites et le fluorure de lanthane." Reims, 1996. http://www.theses.fr/1996REIMS008.
Повний текст джерелаGoldner, Philippe. "Processus de paires dans une perovskite hexagonale : luminescence anti-stokes dans les systemes erbium-erbium et erbium-ytterbium." Paris 6, 1993. http://www.theses.fr/1993PA066376.
Повний текст джерелаGachet, David. "Microscopie CARS (Coherent anti-Stokes Raman scattering). Génération du signal au voisinage d'interfaces et à l'intérieur d'une cavité Fabry-Perot." Aix-Marseille 3, 2007. http://www.theses.fr/2007AIX30060.
Повний текст джерелаCoherent anti-Stokes Raman scattering ("CARS") is a spectroscopic technique that gives access to intra-molecular vibrational information. It was first proposed as a contrast mechanism in microscopy in 1982, and was implemented under a convenient colinear configuration in 1999. Since then, the signal generation in CARS microscopy has been studied in the litterature on some simple configurations. In this PhD dissertation, we extend the CARS signal generation study in isotropic media using a full-vectorial formalism. In particular, we introduce CARS signal dependency on the Raman depolarisation ratio and study theoretically its influence on far-field radiation patterns. In another part, we investigate the CARS signal generation in the vicinity of transverse and axial interfaces. On the one hand, a very simple method to obtain background free CARS spectra (i. E. Similar to pure Raman spectra) near transverse interfaces, with conventional excitation, is presented. One the other hand, we show theoretically and experimentally how the excitation detuning modifies the contrast of axial interfaces. These effects are tightly bound to the coherent and resonant nature of CARS. Finally, in order to enhance CARS microscopy sensitivity, we propose to generate the CARS signal near a resonant structure. In this purpose, we lead theoretical and experimental studies of CARS signal generation in a Fabry-Perot cavity. We show how this cavity enhances signal, increases its directivity and symetrise Fwd-CARS and Epi-CARS signals. Such effects are interesting for CARS microscopy. This last study illustrates the electromagnetic environment influence on light emission
Boulma, El-Haine. "Etude des propriétés spectroscopiques des ions erbium et thulium trivalents dilués dans des cristaux de KY3F10." Reims, 2007. http://www.theses.fr/2007REIMS025.
Повний текст джерелаThe conversion of light towards high frequencies is carried out according to three excitation mechanism types: successive absorptions of several photons, the excited-state energy transfer between ions and the photons avalanche. This last process is a collective effect based on an energy transfer between an excited ion and an unexcited ion. Under certain conditions, these transfers can lead to a chain reaction inducing an important increase of anti-Stokes fluorescent intensity. The object of this work is the systematic study of the anti-Stokes fluorescence of the trivalent rare earth ions in the fluorite crystals. The studies, which we present, are recorded by using a monochromatic excitation around 650 nm provided by a tunable dye laser. I have studied more particularly the erbium and thulium diluted ions in the KY3F10 single crystals. This study permits to determine Starks sub-levels of the various 2S+LJ multiplets of Er3+ and Tm3+ ions at liquid nitrogen temperature with a very good precision. We expose also the results relating to the dynamics of anti-Stokes fluorescence, by analyzing the variation of the fluorescence intensity as a function of the excitation power and by taking measurements of lifetimes. We also report the results of a spectroscopic study of anti-Stokes emissions from a Tm3+-doped KY3F10 crystal demonstrating the sensitized effect of Er3+ ions, present as trace impurities, on the excited-state absorption lines of Tm3. In addition to Er3+ ion, the Ho3+ ion does not increase the possibilities of resonant transfer with the Tm3+ ion
Joly, Véronique. "Etude théorique et expérimentale des mécanismes cinétiques dans le laser iode-oxygène chimique (LIOC)." Paris 11, 1989. http://www.theses.fr/1989PA112177.
Повний текст джерелаGachet, D. "Microscopie "CARS" (Coherent anti-Stokes Raman scattering). Génération du signal au voisinage d'interfaces et à l'intérieur d'une cavité Fabry-Perot." Phd thesis, 2007. http://tel.archives-ouvertes.fr/tel-00258999.
Повний текст джерелаЧастини книг з теми "Conversions Stokes et anti-Stokes"
RIGNEAULT, Hervé, and Julien DUBOISSET. "Imagerie Raman cohérente." In Spectroscopies vibrationnelles, 273–88. Editions des archives contemporaines, 2020. http://dx.doi.org/10.17184/eac.4204.
Повний текст джерелаТези доповідей конференцій з теми "Conversions Stokes et anti-Stokes"
Auyeung, R. C. Y., D. G. Cooper, and B. J. Feldman. "Stimulated anti-Stokes Raman scattering in inverted atomic selenium." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.tus5.
Повний текст джерелаChee, J. K., and J. M. Liu. "Parametric Frequency Conversion in a Highly Birefringent Fiber." In Nonlinear Guided-Wave Phenomena. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/nlgwp.1989.thb12.
Повний текст джерелаHAHN, J. W., S. N. PARK, K. T. KANG, and S. H. CHUNG. "Measuring CO Concentration and Temperature in a CH4/air Premixed Flame with Broadband Coherent Anti-Stokes Raman Spectroscopy." In Laser Applications to Chemical Analysis. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/laca.1994.wd.6.
Повний текст джерелаHancock, R. D., F. R. Schauer, R. P. Lucht, V. R. Katta, and K. Y. Hsu. "CARS Temperature Measurements in a Driven Jet Diffusion Flame." In Laser Applications to Chemical and Environmental Analysis. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/lacea.1996.lthd.3.
Повний текст джерелаKerkvliet, Maarten, Guilherme Vaz, Nicolas Carette, and Michiel Gunsing. "Analysis of U-Type Anti-Roll Tank Using URANS: Sensitivity and Validation." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23483.
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