Academic literature on the topic 'Terahertz, Spectroscopy, Nonlinear Optics'

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Journal articles on the topic "Terahertz, Spectroscopy, Nonlinear Optics"

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SHAN, JIE, AJAY NAHATA, and TONY F. HEINZ. "TERAHERTZ TIME-DOMAIN SPECTROSCOPY BASED ON NONLINEAR OPTICS." Journal of Nonlinear Optical Physics & Materials 11, no. 01 (2002): 31–48. http://dx.doi.org/10.1142/s0218863502000845.

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We present a brief review of the use of nonlinear optics for broadband terahertz (THz) time-domain spectroscopy with femtosecond laser pulses. The generation of THz pulses is accomplished by optical rectification and coherent detection by electro-optic sampling or field-induced second-harmonic generation. The approach permits exceptional time response, as well as the possibility for multichannel detection schemes.
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Rasekh, Payman, Akbar Safari, Murat Yildirim, et al. "Terahertz Nonlinear Spectroscopy of Water Vapor." ACS Photonics 8, no. 6 (2021): 1683–88. http://dx.doi.org/10.1021/acsphotonics.1c00056.

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Pan, Shubao, Huo Zhang, Zhi Li, Tao Chen, and Xianhua Yin. "Quantitative Determination of Sucrose Adulterated in Red Ginseng by Terahertz Time-Domain Spectroscopy (THz-TDS) with Monte Carlo Uninformative Variable Elimination (MCUVE) and Support Vector Regression (SVR)." Journal of Spectroscopy 2022 (February 27, 2022): 1–10. http://dx.doi.org/10.1155/2022/5847819.

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This paper introduces a method to detect the content of sucrose, an adulterant of red ginseng, based on terahertz spectroscopy. Experiments were carried out on red ginseng with 6 levels of adulterated concentrations using terahertz time-domain spectroscopy (THz-TDS). We separately extracted the information of the terahertz spectral curve by principal component analysis (PCA) and Monte Carlo uninformative variable elimination (MCUVE) and then separately performed quantitative analysis by partial least squares regression (PLSR) and support vector regression (SVR). Because the nonlinear line fact
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Paparo, Domenico, Anna Martinez, Andrea Rubano, Jonathan Houard, Ammar Hideur, and Angela Vella. "THz Generation by Two-Color Plasma: Time Shaping and Ultra-Broadband Polarimetry." Sensors 24, no. 13 (2024): 4265. http://dx.doi.org/10.3390/s24134265.

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The generation of terahertz radiation via laser-induced plasma from two-color femtosecond pulses in air has been extensively studied due to its broad emission spectrum and significant pulse energy. However, precise control over the temporal properties of these ultra-broadband terahertz pulses, as well as the measurement of their polarization state, remain challenging. In this study, we review our latest findings on these topics and present additional results not previously reported in our earlier works. First, we investigate the impact of chirping on the fundamental wave and the effect of mani
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Bostak, J. S., D. W. van der Weide, D. M. Bloom, B. A. Auld, and E. Özbay. "All-electronic terahertz spectroscopy system with terahertz free-space pulses." Journal of the Optical Society of America B 11, no. 12 (1994): 2561. http://dx.doi.org/10.1364/josab.11.002561.

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Vitiello, Miriam S., Luigi Consolino, Massimo Inguscio, and Paolo De Natale. "Toward new frontiers for terahertz quantum cascade laser frequency combs." Nanophotonics 10, no. 1 (2020): 187–94. http://dx.doi.org/10.1515/nanoph-2020-0429.

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AbstractBroadband, quantum-engineered, quantum cascade lasers (QCLs) are the most powerful chip-scale sources of optical frequency combs (FCs) across the mid-infrared and the terahertz (THz) frequency range. The inherently short intersubband upper state lifetime spontaneously allows mode proliferation, with large quantum efficiencies, as a result of the intracavity four-wave mixing. QCLs can be easily integrated with external elements or engineered for intracavity embedding of nonlinear optical components and can inherently operate as quantum detectors, providing an intriguing technological pl
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Partini, Juliasih, Kamsul Abraha, Arief Hermanto, Satoshi Tomita, and Matsui Takahiro. "Kajian Gejala Penyearahan Optik pada Metamaterial Chiral." INDONESIAN JOURNAL OF APPLIED PHYSICS 4, no. 02 (2017): 149. http://dx.doi.org/10.13057/ijap.v4i02.4980.

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<p>Chiral metamaterial is a new breakthrough in the fabrication of a metamaterial because of the capability of providing different refractive index values for each circular polarization angle. This provides opportunities to obtain negative refractive index values, without the necessity to have simultaneously negative values for both permittivity and permeability. This study investigated the optical rectification, which is the phenomenon of second order non-linear optics in the chiral metamaterial. This relates to the testing of the new designs of square structure chiral metamaterial. Opt
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Matsunaga, Ryusuke, and Ryo Shimano. "Nonlinear terahertz spectroscopy of Higgs mode in s-wave superconductors." Physica Scripta 92, no. 2 (2017): 024003. http://dx.doi.org/10.1088/1402-4896/aa5327.

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Ezhov, Dmitry, Nazar Nikolaev, Valery Antsygin, Sofia Bychkova, Yury Andreev, and Valery Svetlichnyi. "Temperature-Dependent Optical Properties of Bismuth Triborate Crystal in the Terahertz Range: Simulation of Terahertz Generation by Collinear Three-Wave Mixing in the Main Crystal Planes." Photonics 10, no. 7 (2023): 713. http://dx.doi.org/10.3390/photonics10070713.

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Terahertz (THz) frequency generation via nonlinear optical techniques is of particular interest due to the immense potential of this type of radiation in various scientific fields, ranging from medicine to telecommunications. Selecting suitable nonlinear media for laser frequency down-conversion presents a challenging task. Considering an approach that uses nonlinear crystals with high radiation resistance, pumped by intense laser pulses near their damage threshold, we suggest the crystal of bismuth triborate (BiB3O6, BIBO). Compared to other borate-class crystals, BIBO exhibits relatively hig
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George, Deepu K., Andreas V. Stier, Chase T. Ellis, Bruce D. McCombe, John Černe, and Andrea G. Markelz. "Terahertz magneto-optical polarization modulation spectroscopy." Journal of the Optical Society of America B 29, no. 6 (2012): 1406. http://dx.doi.org/10.1364/josab.29.001406.

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Dissertations / Theses on the topic "Terahertz, Spectroscopy, Nonlinear Optics"

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Peter, F. "Advanced emitters and detectors for terahertz time-domain spectroscopy." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-61479.

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The idea of terahertz-time-domain spectroscopy (THz-TDS) is to exploit a single cycle, spectrally broad THz radiation pulse to gain insight into the response of matter. Photoconductive devices and nonlinear crystals are utilized in both the generation as well as the coherent detection of THz radiation. The relatively high cost and the complexity of commonly used titanium-sapphire lasers hinder a more widespread use of pulsed THz systems for commercial applications. Er-doped femtosecond fiber lasers operating at 1.55 μm could offer a viable alternative. In this thesis nonlinear crystals and pho
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Rasekh, Payman. "Kerr Effect at the THz Frequencies." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41085.

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This doctoral dissertation focuses on the nonlinear optical response of water vapour as well as some solids at terahertz (THz) frequencies. In this study, the propagation of broadband single-cycle THz pulses through a medium with the third-order nonlinear optical response is theoretically investigated. Also, a technique to measure the nonlinear response of transparent materials based on the time-domain THz spectroscopy is developed, which provides frequency dispersion curves of the nonlinear Kerr coefficient (n₂). A numerical model is used to simulate the THz pulse propagation. This model tak
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Bernerd, Cyril. "Génération d'ondes TeraHertz par Différence de Fréquence." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT061/document.

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Le domaine des ondes TeraHertz (THz) s’étend de l’infrarouge lointain (15 μm / 20 THz) aux ondes radios (3000 μm / 0.1 THz). La couverture spectrale des sources actuelles, qu’elles soient thermique (lampes à mercure…), électronique (diode Gunn…) ou optique (laser, antennes…), ne permet pas de répondre à l’ensemble des applications en spectroscopie et en imagerie. Une alternative à ces sources est l’optique non linéaire paramétrique, qui permet de générer des ondes THz à partir du processus de Différence de Fréquences (DFG), et qui consiste à injecter un ou deux lasers dans un cristal non linéa
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Abdul, Hadi Zeinab. "Terahertz emission spectroscopy of multiferroic bismuth ferrite : insights into ultrafast currents and phonon dynamics." Electronic Thesis or Diss., Le Mans, 2024. http://www.theses.fr/2024LEMA1030.

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La technologie térahertz (THz) a suscité un intérêt significatif dans la communauté scientifique en raison de sa position unique dans le spectre électromagnétique, complétant le gap entre les régions des micro-ondes et de l'infrarouge. Cette radiation est non ionisante et peut pénétrer divers matériaux sans les endommager, ce qui la rend très attirante pour de nombreuses applications potentielles. Les avancées récentes dans la technologie des lasers ultra-rapides ont élargi l'exploration du rayonnement THz à un large éventail de technologies passionnantes. Elle est désormais utilisée dans des
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Nguyen, Alisée. "Contrôle de rayonnements térahertz intenses produits par lasers femtosecondes et applications à la détection de molécules." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS020/document.

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Les ondes térahertz (THz), situées entre l'infrarouge et les micro-ondes dans le spectre électromagnétique, correspondent aux fréquences caractéristiques de nombreux mouvements moléculaires et permettent ainsi de caractériser des molécules complexes par spectroscopie dans le domaine temporel. Cette thèse a pour objectif d'étudier les champs THz émis par une source constituée d'une impulsion laser à deux couleurs générant un plasma par ionisation de l'air. En raison de l'asymétrie temporelle du champ laser, un courant électronique présentant une composante basse-fréquence dans la gamme THz est
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Singh, Rohit. "Modulated orientation sensitive terahertz spectroscopy." Thesis, State University of New York at Buffalo, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3565883.

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<p> The energies of protein correlated motions lie in the far infrared or THz frequency range (&lambda; = 1 cm &ndash; 50 mm, f = 0.03 &ndash; 6 THz). The existence of correlated motions has been confirmed by neutron and inelastic x-ray scattering measurements. These techniques require large sample volumes and specialized facilities, limiting their application to systematic studies of changes in correlated motions with functional state and allosteric interactions. Standard terahertz time domain spectroscopy measurements have shown sensitivity to protein-ligand binding, oxidation state, conform
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Brandt, Nathaniel Curran. "Developments and advances in nonlinear terahertz spectroscopy." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/91110.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Nonlinear terahertz (THz) spectroscopy is a rapidly developing field, which is concerned with driving and observing nonlinear material responses in the THz range of the electromagnetic spectrum. In this thesis, I present several advances in nonlinear THz spectroscopy that expand the range of systems in which responses may be driven, the types of responses that may be initiated, and the way in which these responses may be obser
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Kühn, Wilhelm. "Nonlinear terahertz spectroscopy in one and two dimensions." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://dx.doi.org/10.18452/16286.

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Die vorliegende Dissertation behandelt Grundlagen und Anwendungen der nichtlinearen Terahertzspektrospie (THz). Diese Arbeit zeigt erstmalig, dass sich die Inversion des Quantenkaskadenlasers nach einer Störung schon innerhalb von hundert Femtosekunden wieder erholt. Außerdem wurde der exakte Generationsprozess von THz Impulsen in einem Laser-induzierten zwei-Farben Plasma untersucht. Durch Vergleich mit Simulationen wird eindeutig der Ionisationsstrom im Plasma als Quelle der THz Strahlung identifiziert. Neue Spektroskopiemethoden in ein und zwei Zeitdimensionen werden entwickelt und auf vers
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Ould-Hamouda, Amine. "Étude des transitions de phase photo-induites dans des matériaux métalliques et organométalliques." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0112/document.

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Ces travaux de thèse portent sur l'étude des transitions de phases photo-induites dans différents matériaux métalliques et organométalliques. Les études présentées ont été guidées par la problématique liée à l'enregistrement et au stockage d'informations numériques. Tout d’abord, nous nous sommes intéressés à la spectroscopie THz et Raman de composés à transitions d'état de spin à base de Fe (II). Les spectres obtenus à l’aide de ces deux techniques sont confrontés aux résultats issus de simulations numériques (DFT). Nous avons également étudié la transition d’état de spin induite par des lase
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Graber, Benjamin. "HIGH POWER TIME DOMAIN TERAHERTZ SPECTROSCOPY." Diss., Temple University Libraries, 2014. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/301211.

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Physics<br>Ph.D.<br>Terahertz (THz) has become a strong area for scientific research and commercial application in recent years. This research group has redesigned and optimized a THz photoconductive antenna, which currently operates with approximately 10x the power of a commercial antenna. It has been determined by this research that the THz signal emitted from a photoconductive antenna consists of coherent and incoherent signals. In addition to the improvement of the THz photoconductive antenna, I have optimized an electro optic THz detection system by characterizing the field dependency of
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Books on the topic "Terahertz, Spectroscopy, Nonlinear Optics"

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Peiponen, Kai-Erik. Terahertz Spectroscopy and Imaging. Springer Berlin Heidelberg, 2013.

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S, Radhakrishna, Tan B. C, University of Malaya. Institute of Advanced Studies., and Malaysian Institute of Physics, eds. Laser spectroscopy and nonlinear optics of solids. Springer-Verlag, 1991.

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Yehiam, Prior, Ben-Reuven Abraham, and Rosenbluh Michael, eds. Methods of laser spectroscopy. Plenum Press, 1986.

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1957-, Hunt Jeffrey H., ed. Selected papers on nonlinear optical spectroscopy. SPIE Optical Engineering Press, 2000.

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Rautian, Sergeĭ Glebovich. Kinetic problems of non-linear spectroscopy. North-Holland, 1991.

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Summer School on Quantum Optics. (15th 1987 Frombork, Poland). Laser spectroscopy: Proceedings of the XV Summer School on Quantum Optics, Frombork, Poland, 3-9 September 1987. Edited by Heldt J, Lawruszczuk R, and Uniwersytet Gdański. Instytut Fizyki Doświadczalnej. World Scientific, 1988.

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Derbov, Vladimir L., and L. M. Babkov. Laser physics and photonics, spectroscopy, and molecular modeling V: Saratov Fall Meeting 2004 : 21-24 September 2004, Saratov, Russia. Edited by Melinkov Leonid A, Saratovskiĭ gosudarstvennyĭ universitet im. N.G. Chernyshevskogo, Rossiĭskai︠a︡ akademii︠a︡ estestvennykh nauk. Saratovskoe regionalʹnoe otdelenie, Society of Photo-optical Instrumentation Engineers. Russian Chapter, Society of Photo-optical Instrumentation Engineers, and Saratov Fall Meeting (2004 : Saratov, Russia). SPIE, 2005.

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Sild, Olev. Zero-Phonon Lines: And Spectral Hole Burning in Spectroscopy and Photochemistry. Springer Berlin Heidelberg, 1988.

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N, Bagayev S., Zadkov V. N, Arakeli͡an S. M, Institut lazernoĭ fiziki SO RAN., Russia (Federation). Ministerstvo promyshlennosti, nauki i tekhnologiĭ., and Society of Photo-optical Instrumentation Engineers., eds. International Seminar on Novel Trends in Nonlinear Laser Spectroscopy and High-precision Measurements in Optics: 21-26 September 2000, Vladimir/Suzdal, Russia. SPIE, 2001.

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L, Derbov Vladimir, Melnikov Leonid A, Babkov L. M, et al., eds. Laser physics and photonics: And spectroscopy and molecular modeling : 3-7 October 2000, Saratov, Russia. SPIE, 2001.

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Book chapters on the topic "Terahertz, Spectroscopy, Nonlinear Optics"

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Murphy, J. Anthony, and Créidhe O’Sullivan. "Terahertz Optics." In Terahertz Spectroscopy and Imaging. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29564-5_2.

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Hoffmann, Matthias C. "Nonlinear Terahertz Spectroscopy." In Terahertz Spectroscopy and Imaging. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29564-5_14.

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Demtröder, Wolfgang. "Nonlinear Optics." In Laser Spectroscopy 1. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-53859-9_6.

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Singhal, Ravi. "Nonlinear Optics." In An Introduction to Laser Spectroscopy. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4613-0337-4_9.

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Wegener, Martin. "Carrier-Wave Nonlinear Optics." In Frontiers of Optical Spectroscopy. Springer Netherlands, 2005. http://dx.doi.org/10.1007/1-4020-2751-6_4.

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Andrews, David L., and Stephen R. Meech. "Nonlinear Optics and Surface Applications." In An Introduction to Laser Spectroscopy. Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0727-7_8.

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Sun, Mengtao, Xijiao Mu, and Rui Li. "Basic Theory of Nonlinear Optics." In Linear and Nonlinear Optical Spectroscopy and Microscopy. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-3637-3_2.

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Bloembergen, N. "Nonlinear Optics and Collective Excitations." In Spectroscopy and Dynamics of Collective Excitations in Solids. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5835-4_1.

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Flytzanis, Ch, G. M. Gale, and F. Vallée. "Non-local time-resolved spectroscopy tracking of polariton pulses in crystals." In Frontiers in Nonlinear Optics. CRC Press, 2021. http://dx.doi.org/10.1201/9781003209638-7.

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Grischkowsky, D. "Nonlinear generation of sub-psec pulses of THz electromagnetic radiation by optoelectronics—applications to time-domain spectroscopy." In Frontiers in Nonlinear Optics. CRC Press, 2021. http://dx.doi.org/10.1201/9781003209638-11.

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Conference papers on the topic "Terahertz, Spectroscopy, Nonlinear Optics"

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Tian, Chuanshan. "Few-cycle, gapless, and intense terahertz source for nonlinear terahertz spectroscopy." In Ultrafast Nonlinear Imaging and Spectroscopy XII, edited by Zhiwen Liu, Demetri Psaltis, and Kebin Shi. SPIE, 2024. http://dx.doi.org/10.1117/12.3026105.

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Degl'Innocenti, Riccardo, Yuezhen Lu, Abdullah M. Zaman, et al. "THz metasurfaces for nonlinear optics." In Terahertz Emitters, Receivers, and Applications XV, edited by Manijeh Razeghi and Mona Jarrahi. SPIE, 2024. http://dx.doi.org/10.1117/12.3029397.

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Shimano, Ryo. "Nonlinear terahertz spectroscopy of Higgs mode in superconductors." In Nonlinear Optics. OSA, 2015. http://dx.doi.org/10.1364/nlo.2015.nw3a.4.

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Koch, S. W., M. Kira, J. T. Steiner, and D. Golde. "Nonlinear Terahertz Spectroscopy of Semiconductors." In Conference on Lasers and Electro-Optics. OSA, 2009. http://dx.doi.org/10.1364/cleo.2009.jtuc2.

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Hirori, Hideki. "Ultra-intense Terahertz Pulse Generation and Application to Nonlinear THz Spectroscopy." In Nonlinear Optics. OSA, 2013. http://dx.doi.org/10.1364/nlo.2013.nm3b.1.

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Kutas, Mirco, Björn Erik Haase, Felix Riexinger, et al. "Recent Progress in Terahertz Quantum Sensing." In Conference on Lasers and Electro-Optics/Pacific Rim. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleopr.2022.ctup3d_01.

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Terahertz quantum sensing using nonlinear interferometers allows for measuring terahertz spectral properties of samples while only detecting visible light, which never interacted with the sample. We discuss possibilities for terahertz applications in spectroscopy and imaging.
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Razzari, L., F. Blanchard, F. H. Su, et al. "Terahertz nonlinear spectroscopy of free-carriers in semiconductors." In LEOS 2009 -22nd Annuall Meeting of the IEEE Lasers and Electro-Optics Society (LEO). IEEE, 2009. http://dx.doi.org/10.1109/leos.2009.5343386.

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Woerner, M., P. Gaal, W. Kuehn, K. Reimann, T. Elsaesser, and R. Hey. "Nonlinear THz optics—ultrafast spectroscopy." In 2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics (IRMMW-THz). IEEE, 2007. http://dx.doi.org/10.1109/icimw.2007.4516676.

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Hayashi, M., and Y. Fujimura. "Origin of ultrafast dynamics in time-resolved impulsive stimulated Raman scattering (ISRS) from molecules in liquids." In Nonlinear Optics. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/nlo.1992.tud3.

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1. One of the features in ultrashort time-resolved nonlinear coherent scattering spectroscopy is creation of a transient intermolecular coherence in molecular liquids. 1,2 For example, teraheltz quantum beats appear in time-resolved coherent anti-Stokes Raman scattering (CARS) and time-resolved impulsive stimulated Raman scattering (ISRS) profiles as a result of the creation of the intermolecular vibrational coherence. Such time-resolved profiles provide us information on the mechanism of the intermolecular dynamics. Recently, Nelson group has reported the time-resolved ISRS profile of dibromo
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Unikandanunni, Vivek, and Stefano Bonetti. "Terahertz and optical ultrafast electron dynamics in platinum and gold." In Ultrafast Nonlinear Imaging and Spectroscopy IX, edited by Zhiwen Liu, Demetri Psaltis, and Kebin Shi. SPIE, 2021. http://dx.doi.org/10.1117/12.2594551.

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Reports on the topic "Terahertz, Spectroscopy, Nonlinear Optics"

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Furtak, T. E. Vibrational spectroscopy of buried interfaces using nonlinear optics. Final technical report, July 7, 1986--February 29, 1996. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/286295.

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