Academic literature on the topic 'Spectroscopie à cavité optique'
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Journal articles on the topic "Spectroscopie à cavité optique":
Vigne, Nathan, Baptiste Chomet, Alaeddine Abbes, Mohamed Seghilani, Stéphane Blin, Mikhael Myara, Grégoire Beaudoin, et al. "États originaux de la lumière par structuration 3D de l’émission D’un laser à Métasurface." Photoniques, no. 109 (July 2021): 46–50. http://dx.doi.org/10.1051/photon/202110946.
Collet, Éric. "Transitions photoinduites ultrarapides : un axe émergent pour la photonique." Photoniques, no. 108 (May 2021): 28–31. http://dx.doi.org/10.1051/photon/202110828.
Krupa, JC, and P. Delamoye. "Spectroscopie optique de l’uranium tétravalent dans les phases incommensurables." Journal de Chimie Physique 88 (1991): 2327–31. http://dx.doi.org/10.1051/jcp/1991882327.
Fournier, Antoine, Julien Romann, Eric Drean, Denis Tregoat, and Stéphane Perrin. "L’imagerie spectrale pour l’agriculture et les sciences végétales." Photoniques, no. 120 (2023): 41–46. http://dx.doi.org/10.1051/photon/202312041.
Duquesnoy, Maxime, Jean-Michel Melkonian, Raphaël Levy, Myriam Raybaut, Jean-Baptiste Dherbecourt, and Antoine Godard. "Comprendre. Détection de gaz par spectroscopie photoacoustique : principe et mise en œuvre." Photoniques, no. 94 (November 2018): 38–44. http://dx.doi.org/10.1051/photon/20189438.
Heidmann, A., P. F. Cohadon, and M. Pinard. "Bruit thermique et effets quantiques dans une cavité optique de grande finesse." Le Journal de Physique IV 10, PR8 (May 2000): Pr8–19. http://dx.doi.org/10.1051/jp4:2000803.
Caniard, T., T. Briant, A. Heidmann, and M. Pinard. "Bruit thermique et effets quantiques dans une cavité optique de grande finesse." Journal de Physique IV (Proceedings) 135, no. 1 (October 2006): 111–12. http://dx.doi.org/10.1051/jp4:2006135020.
Bensalah, K., J. Fleureau, D. Rolland, N. Rioux-Leclercq, L. Senhadji, O. Lavastre, F. Guillé, J. J. Patard, and R. de Crevoisier. "La spectroscopie optique : une nouvelle approche pour l’étude des tumeurs urologiques." Progrès en Urologie 20, no. 7 (July 2010): 477–82. http://dx.doi.org/10.1016/j.purol.2010.03.006.
Romanini, D. "Spectroscopie d'absorption quantitative à très haute sensiblité : "ring down" cavité et absorption intracavité laser." Annales de Physique 20, no. 5-6 (1995): 655–74. http://dx.doi.org/10.1051/anphys:199556059.
ANDUEZA, D., B. P. MOUROT, A. AÏT-KADDOUR, S. PRACHE, and J. MOUROT. "Utilisation de la spectroscopie dans le proche infrarouge et de la spectroscopie de fluorescence pour estimer la la qualité et la traçabilité de la viande." INRA Productions Animales 28, no. 2 (January 13, 2020): 197–208. http://dx.doi.org/10.20870/productions-animales.2015.28.2.3025.
Dissertations / Theses on the topic "Spectroscopie à cavité optique":
Suas-David, Nicolas. "Jets hypersoniques sondés par temps de déclin d’une cavité optique : application à l’astrophysique de laboratoire." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S009/document.
A huge quantity of infrared spectra is collected by terrestrial and space telescopes from cool astrophysical objects (500-3000 K) like exoplanet (hot Jupiter) and brown dwarf atmospheres or circumstellar envelop of AGB stars. The main purpose of this thesis connected to experimental astrophysics is to provide high temperature data of key molecules by reproducing in the laboratory some aspects of such environments. A new setup built in Rennes couples a High Enthalpy Source to a highly sensitive Cavity Ring-Down Spectrometer. The gas studied, heated in the reservoir up to 2000 K, is expanded in a vacuum chamber through a circular nozzle and the resulting hypersonic jet can be probed at any location. Computational flow dynamics (CFD) calculations associated to a modeling of the infrared absorption lead to synthetic lines which are in very good agreement with the observed spectra. These numerical data were used to attribute the unusual double peak line shapes to the particular flow structure of axisymmetric hypersonic jets. Strong out-of-equilibrium conditions were evidenced in the isentropic core of the expansion. High vibrational temperature (1350 K) and rotational temperature lower than 10 K were recorded inside a jet of CO seeded in Ar. This degrees-of-freedom decoupling greatly simplifies the rotational structure of the recorded infrared spectra and unveils the presence of hot bands stemming from highly excited vibrational states which are significantly populated at high temperature. Our approach is therefore well suited for the study of rotationally cold hot bands of polyatomic molecules which are virtually missing in spectroscopic databases. A complementary approach consists in probing the shock layer formed upstream of an obstacle set perpendicularly to the hypersonic flow axis. Rotational temperature raises abruptly downstream the shock, revealing transitions associated with high J quantum numbers. These two methods were successfully applied to methane which plays an important role in numerous astrophysical environments. In addition to the acquisition of infrared spectroscopic data, the relaxation of internal degrees-of-freedom of CO seeded in different carrier gases (Ar and He) was studied by following the evolution of rotational and vibrational temperatures along the flow, in the isentropic core as well as in the peripheral viscous layers. These temperatures were compared to excitation temperatures calculated by an ab initio method in order to validate collision rates. These data will feed databases needed for the development of radiative transfer codes with a view to a better modeling of spectra observed from "hot" astrophysical environments
Colombier, Léo. "Spectroscopie optique de nanotubes de carbone : complexes excitoniques et cavités plasmoniques." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20058/document.
This thesis focus on both the biexciton's stability in carbon nanotubes, and the control of the nanotube emission through its coupling to plasmonic antenna.We report the first observation of biexciton in carbon nanotubes by means of spectral holeburning nonlinear optical spectroscopy. More precisely, two induced absorption lines are detected and assigned to trion and biexciton after investigation of their temperature and pump power dependences. An additional proof of the detection of the biexciton, as an elementary excitation of carbonnanotubes, is given in a three-beam configuration based on a two-pump scheme. The biexciton of the (9,7) chirality is observed with a binding energy of 107 ± 1 meV and shows an asymetric Fano lineshape. A first estimation of the biexciton's recombinaison dynamics is given by the quantitative analysis of the nonlinear signal. Our analytic model is formulated in the framework of the chi(3) nonlinear response, including coulomb interaction between biexcitons and free electron-hole pairs lying in the first Van Hove singularity. A Fano factor of about q = 5 is determined, which drives us to the estimation of biexciton's Auger recombinaison rate B ∈ [0.1; 1] μm · ps−1 . The Biexciton's radiative yield is then estimated of the order of 10−6 .In order to study nanotubes in plasmonic cavities, we developed micro-photoluminescence and dark-field spectroscopy experiments in the optical fiber telecommunication wavelengths (1.3 μm and 1.55 μm). Caracterisation of nanotube samples and plasmonic antenna are presented. Preliminary results on nanotubes inserted in a patch antenna have shown correlation between antenna's position and the spatial distribution of luminescence. Moreover, a change in the carbon nanotube's photoluminescence profile is observed. These results appear to be a turning point in our work. The calibration of our experiment is at its end and studies of optical properties of carbon nanotubes coupled to plasmonic antenna are now on stream in our team
Rutkowski, Lucile. "Couplage Vernier d'un peigne de fréquences femtoseconde dans une cavité optique pour la spectroscopie moléculaire très large bande." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10229/document.
Femtosecond mode-Locked lasers are generators of optical frequency ‘combs’, whose distinct frequencies cover many tens or hundreds of THz. My PhD work has focused on the study and construction of a particular coupling scheme in an optical cavity, named Vernier coupling. Here, the laser comb and the cavity resonances are deliberately mismatched, as a Vernier rule. This creates Moiré pattern in the cavity spectral transmission, with a periodicity related to the inverse of the mismatch. The first part details the theory behind the coupling of laser and optical cavity modes. Two regimes are identified, called “high” resolution Vernier filtering, when the laser comb structure is probed mode by mode, and “low” resolution filtering where the linewidth of one Vernier order is given by the mismatch. The second part describes the experimental realization of this coupling scheme. It details the locking strategy used to control the resonance position of the cavity (F=3000) in regards of the laser comb (kHz scale). Finally, I present spectra recorded with this setup, focusing on molecular spectroscopy. The spectra of ambient air are recorded in acquisition times around 1 s, that cover the full bandwidth of the femtosecond laser ( 40 THz, 750-850 nm), at 2 GHz resolution. The sensitivity of the absorption measurement reaches 10−9 /cm, with averaging. This high sensitivity comes from an immunity to the frequency-To-Amplitude noise conversion of the “low” resolution Vernier coupling, leading to a signal to noise ratio better than 104. These performances give the spectrometer figure of merit of 4×10−11 cm−1/√ Hz, currently taking third place in rank international state of the art ranking
C̆ermák, Peter. "Spectroscopie optique de haute sensibilité dans les plasmas et les gazes." Grenoble, 2010. http://www.theses.fr/2010GRENY029.
The project of this thesis was developed as a joint supervision project between the Department of Experimental Physics at Comenius University in Bratislava and Laboratoire de Spectrometrie Physique at Joseph Fourier University in Grenoble. The aim of the project is the development and application of some of these new spectroscopic methods for the study and diagnostics of gases and plasma. In Bratislava the work under the supervision of prof. Pavel Veis and Doc. Peter Macko was oriented towards the optical diagnostics of plasma environments. Beside the principal experiments concerning the dielectric barrier discharge (DBD) and production of the singlet oxygen state, the goal was to develop spectroscopic methods capable of providing physical measurements related to this applications. In the DBD the interest was focused on the description of the excited electronic states population variations during the period of discharge. We used fast broad--band emission spectroscopy (FEBS) comprising the instrument and data treatment process to achieve this goal. In case of singlet oxygen production we developed a Cavity ring--down spectrometer (CRDS) to detect the singlet oxygen by its infrared absorption in the microwave plasma afterglow. In Grenoble under the supervision of Dr. Daniele Romanini the principal line of work consisted in the development of a new laser source - Vertical external cavity surface emitting laser (VECSEL) and its application to absorption spectroscopy. The work was held in collaboration with the Institude d'electronique du Sud in the frame of the joint ANR MIREV project. A period was also dedicated to the developing of a small, fast, robust and low-cost NO2 and NO3detector based on the Incoherent broad--band cavity enhanced absorption spectroscopy (IBB--CEAS)
Avoine, Amaury. "Etude optique de cristaux photoniques : opales et cavités 2D." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2011. http://tel.archives-ouvertes.fr/tel-00671221.
Triki, Meriam. "Cavités optiques de haute finesse pour la mesure de composés à l'état de trace en phase gazeuse." Phd thesis, Université Joseph Fourier (Grenoble), 2008. http://tel.archives-ouvertes.fr/tel-00331642.
D'abord, les notions nécessaires à la compréhension des techniques considérées sont présentées. Suit la description du développement d'un système IBB-CEAS avec une source LED émettant autour de 643 nm, avec application à la détection des oxydes d'azote à l'état de traces. Les résultats obtenus mettent en avant les avantages de cette technique en termes de simplicité, robustesse et de compacité. La limite de détection obtenue pour le radical NO2 est estimée à 1 ppbv pour deux minutes de temps d'acquisition.
Pour la deuxième étude concernant une source laser de type VECSEL émettant à 2.3 μm et pompé optiquement, le résultat principal a été l'obtention d'un balayage monofréquence sur une grande plage spectrale de l'ordre de 16.5 cm-1. Cela a demandé un balayage simultané de la température et de la longueur de la cavité laser. Ensuite, des essais préliminaires on été effectués pour coupler cette source avec la technique OF-CEAS. Ces essais ont révélé un problème de stabilité du comportement monofréquence de la source VECSEL en présence de rétroaction optique.
Enfin, la faisabilité de la technique OF-CEAS avec une source ECDL émettant dans l'infrarouge proche pour le diagnostic des décharges à basse pression a été démontrée. Le coefficient d'absorption minimale obtenu est de l'ordre de 10-9 cm-1 pour un temps d'acquisition court (0.1 s), valeur typique atteinte auparavant dans divers systèmes OF-CEAS. Des essais ont été réalisés avec une décharge en flux d'argon avec des traces de méthane autour de 1 mbar. Le même niveau de bruit a été observé que sans décharge. Cependant, dans la gamme spectrale accessible avec le ECDL disponible, les radicaux de type CHX produits dans ce type de décharge n'ont pas été détectés.
Cermak, Peter. "Spectroscopie optique de haute sensibilité dans les plasmas et les gazes." Phd thesis, Université de Grenoble, 2010. http://tel.archives-ouvertes.fr/tel-00564511.
Goblot, Valentin. "Polariton quantum fluids in one-dimensional synthetic lattices : localization, propagation and interactions." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS016/document.
Semiconductor microcavities have emerged as a powerful platform for the study of interacting quantum fluids. In these cavities, light and electronic excitations are confined in small volumes, and their coupling is so strongly enhanced that optical properties are governed by hybrid light-matter quasiparticles, known as cavity polaritons. These quasiparticles propagate like photons and interact with their environment via their matter part. They can macroscopically occupy a single quantum state and then behave as an extended coherent nonlinear wave, i.e. as a quantum fluid of light. In this thesis, we study the nonlinear dynamics of polariton quantum fluids in various one-dimensional microstructures. The possibility to etch microstructures out of planar cavities, a technology developed at C2N, allows full engineering of the potential landscape for the polariton fluid, and implementing complex geometries. In a first part, we have studied the localization properties of the eigenstates in synthetic quasiperiodic lattices. Theoretical exploration of the localization phase diagram revealed a novel delocalization-localization transition in an original deformation of a quasicrystal and we have experimentally evidenced this transition. A second part of the thesis is dedicated to the study of the nonlinear dynamics of two counterpropagating polariton fluids in a one-dimensional channel. The interplay between kinetic and interaction energy is responsible for the formation of dark solitons, whose number and position can be controlled by optical means. We have evidenced a bistable behaviour controlled by the phase twist imprinted on the two fluids. The last part of this work addresses the study of nonlinearities for a fluid injected in a flat band. Therein, the kinetic energy of the fluid is quenched, so that propagation is frozen. We then observe the formation of nonlinear domains with quantized size. This work opens us exciting perspectives, specifically towards the exploration of topological phases of interacting bosons. Enhancing interactions would also allow using our platform for quantum simulation
Carlon, Zambon Nicola. "Chirality and nonlinear dynamics in polariton microresonators." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASS053.
Semiconductor microcavities, defined by a planar Fabry-Perot cavity embedding a quantum well, allow tightly confining both optical and electronic excitations. In these heterostructures, light and matter interact so rapidly that the fundamental excitations of the system can be effectively described as hybrid light-matter quasiparticles, called exciton-polaritons. Polaritons inherit properties from both their elementary constituents: the photonic modes can be tailored by molding the refractive index landscape via dry etching processing, while the excitonic component endows the system with a large Kerr nonlinearity. In this thesis, we take advantage of these two key features to engineer the photon modes using coupled micropillar resonators, and probe diverse non-linear phenomena. In the first part of this work, we consider coupled microcavities arranged in a ring geometry. Harnessing an analogue spin-orbit coupling and the ability to spin-polarize the optical gain, we demonstrate lasing in modes carrying a net orbital angular momentum (OAM), with a chirality which can be optically controlled. In addition, we evidence a bistable behaviour of the microlaser, involving modes presenting distinct OAM values and polarization patterns. In the second part of the thesis, we concentrate on the nonlinear dynamics of the system under resonant pumping. We trigger a parametric instability in coupled nonlinear resonator, and investigate the underlying mechanism. In the unstable regime, we observe the onset of sustained parametric oscillations, which presence is revealed by the appearance of bright and contrasted sidebands in the emission spectrum. In the last part of the thesis, we investigate the optical metastability a highly nonlinear single micropillar cavity, which manifests in stochastic jumps of the cavity occupation between the two -otherwise stable- branches of the classical bistability. For specific driving conditions, we observe a critical slowing down of the metastable dynamics, which is associated to the onset of a dissipative phase transition. Using a scaling analysis involving dynamical hysteresis experiments, we retrieve the critical exponents of the phase transition. Finally, we propose a mapping of the metastable dynamics of a Kerr resonator onto a logical bit subject to random bit-flip events. We can define and measure the entropy production at a single trajectory level during dynamical hysteresis experiments. These measurements allow validating an integral fluctuation theorem for the non-equilibrium entropy production. This work covers a variety of topics, from fundamental non-linear dynamics in a photonic system, to novel ideas for realizing optical devices, which could eventually operate at room temperature
Laurent, Philippe. "Stabilisation en fréquence de diodes lasers par couplage optique résonant sur une cavité Fabry-Pérot confocale." Paris 11, 1989. http://www.theses.fr/1989PA112396.
We report our work on diode laser frequency stabilization emitting near 850 and 1300 nanometers. In first, we demonstrate a single-mode operation from an initially multimode diode laser with an optical feedback on an external mirror. Secondly, a confocal Fabry-Perot cavity is used to feedback the beam from the diode laser and provide resonant optical stabilization of the semiconductor laser. We present a detailed theoretical analysis of the static and dynamic frequency noise power spectrum of the coupled cavity laser field. Experimentally we achieve static frequency noise reduction of 50-60 dB and obtain a dramatic reduction of the laser line with from 20 MHz to a few kHz. The frequency tenability of these coupled cavity diode lasers are achieved by a double servo-loop system and we have obtained a continuously frequency tuning of 7 GHz without laser spectral purity degradation. Applications of these techniques include optical pumping Cesium docks and frequency synthesis in the visible
Books on the topic "Spectroscopie à cavité optique":
Cho, Minhaeng. Two-dimensional optical spectroscopy. Boca Raton: Taylor & Francis, 2009.
Munowitz, M. Coherence and NMR. New York: Wiley, 1988.
Kéroack, Danielle, Luc Stafford, and Michel Moisan. Physique Atomique et Spectroscopie Optique. EDP Sciences, 2021.
Moisan, Michel, Danielle Kéroack, and Luc Stafford. Physique atomique et spectroscopie optique. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2011-5.
Ionita, Iulian. Condensed Matter Optical Spectroscopy: An Illustrated Introduction. Taylor & Francis Group, 2014.
Ionita, Iulian. Condensed Matter Optical Spectroscopy: An Illustrated Introduction. Taylor & Francis Group, 2014.
David, Harris. Light Spectroscopy. CRC Press LLC, 2020.
David, Harris. Light Spectroscopy. CRC Press LLC, 2020.
David, Harris. Light Spectroscopy. CRC Press LLC, 2020.
Polavarapu, Prasad L. Chiroptical Spectroscopy: Fundamentals and Applications. Taylor & Francis Group, 2016.
Book chapters on the topic "Spectroscopie à cavité optique":
"Chapitre 10 Introduction à la spectroscopie multidimensionnelle." In Optique non linéaire, 155–62. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2007-8-013.
"Chapitre 10 Introduction à la spectroscopie multidimensionnelle." In Optique non linéaire, 155–62. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2007-8.c013.
"Exercices du chapitre 1." In Physique atomique et spectroscopie optique, 261–70. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2011-5-011.
"Avant-propos." In Physique atomique et spectroscopie optique, 1–4. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2011-5-001.
"Chapitre 4. Spectroscopie de l’atome à deux électrons." In Physique atomique et spectroscopie optique, 127–42. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2011-5-008.
"Chapitre 1. Notions de base et terminologie." In Physique atomique et spectroscopie optique, 15–60. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2011-5-005.
"Chapitre 6. Interaction rayonnement-matière." In Physique atomique et spectroscopie optique, 201–60. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2011-5-010.
"Exercices du chapitre 3." In Physique atomique et spectroscopie optique, 297–314. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2011-5-013.
"Frontmatter." In Physique atomique et spectroscopie optique, I—IV. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2011-5-fm.
"Exercices du chapitre 2." In Physique atomique et spectroscopie optique, 271–96. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2011-5-012.
Conference papers on the topic "Spectroscopie à cavité optique":
Guillaume, F., and M. Couzi. "Spectroscopie optique : les vibrations et les phonons." In JDN 16 – Diffusion Inélastique des Neutrons pour l'Etude des Excitations dans la Matiére Condensée. Les Ulis, France: EDP Sciences, 2010. http://dx.doi.org/10.1051/sfn/2010009.
Collombet, A., Y. Guyot, E. Descroix, and M. F. Joubert. "Spectroscopie optique dans l'ultraviolet de cristaux dopés par l'ion Nd3+." In Élaboration et caractérisation des cristaux massifs et en couches minces pour l'optique. Les Ulis, France: EDP Sciences, 2003. http://dx.doi.org/10.1051/bib-sfo:2002806.
Lan, R., F. Campana, J. H. Catherine, U. Ordioni, and D. Tardivo. "Nouvelles techniques d’aide au diagnostic des lésions pré-cancéreuses et cancéreuses de la cavité orale : revue systématique et résultats préliminaires." In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206602018.
Izatt, Jerald R., Mohammad A. Rob, and Wen-Sen Zhu. "Two- and three-grating resonators for multiatmosphere CO2 TE lasers." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.tuo6.