Download or read book SPECTROSCOPIE INFRAROUGE FEMTOSECONDE written by ADELINE.. BONVALET and published by . This book was released on 1997 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL DE THESE A PORTE SUR LE DEVELOPPEMENT ET LES APPLICATIONS D'UNE NOUVELLE TECHNIQUE DE SPECTROSCOPIE INFRAROUGE (5-20 M) PERMETTANT UNE RESOLUTION TEMPORELLE DE 100 FS. CETTE TECHNIQUE S'APPUIE SUR UNE SOURCE D'IMPULSIONS INFRAROUGES ULTRABREVES OBTENUES PAR MELANGE DE FREQUENCES DANS UN MATERIAU NON-LINEAIRE. EN PARTICULIER, LE REDRESSEMENT OPTIQUE D'IMPULSIONS VISIBLES DE 12 FS DANS L'ARSENIURE DE GALLIUM A AINSI PERMIS D'OBTENIR DES IMPULSIONS INFRAROUGES DE 40 FS DE DUREE DONT LE SPECTRE S'ETEND DE 5 A 15 M. LA RESOLUTION SPECTRALE EST ALORS OBTENUE PAR SPECTROSCOPIE PAR TRANSFORMEE DE FOURIER, A L'AIDE D'UN DISPOSITIF ORIGINAL QUE NOUS AVONS APPELE LE SPECTROMETRE IRTF PAR DIFFRACTION. CES DEVELOPPEMENTS ONT PERMIS L'ETUDE DES TRANSITIONS INTERSOUSBANDES DANS LES STRUCTURES A PUITS QUANTIQUES. LE TEMPS DE RELAXATION INTERSOUSBANDE A PU ETRE MESURE PAR UNE EXPERIENCE DE TYPE POMPE-SONDE, EN PERTURBANT L'ECHANTILLON A L'AIDE D'UNE IMPULSION VISIBLE, PUIS EN SONDANT LES VARIATIONS D'ABSORPTION INTERSOUSBANDE AVEC UNE IMPULSION INFRAROUGE. D'AUTRE PART, NOUS AVONS MIS AU POINT UNE TECHNIQUE DE SPECTROSCOPIE D'EMISSION COHERENTE PERMETTANT D'ENREGISTRER LE CHAMP ELECTRIQUE EMIS PAR OSCILLATIONS DE PAQUETS D'ONDES ELECTRONIQUES DANS UN PUITS QUANTIQUE. LE DECLIN DES OSCILLATIONS DU A LA PERTE DE COHERENCE DES NIVEAUX EXCITES DONNE AINSI UNE MESURE DIRECTE DU TEMPS DE DEPHASAGE ENTRE CES NIVEAUX. UN AUTRE CHAMP D'APPLICATIONS CONCERNE LES MACROMOLECULES BIOLOGIQUES TELLES QUE LE CENTRE REACTIONNEL DE BACTERIES PHOTOSYNTHETIQUES. NOUS AVONS MONTRE QUE NOUS ETIONS EN MESURE D'EXTRAIRE DES VARIATIONS D'ABSORPTION INFRAROUGE DE L'ORDRE DE 10#-#4 DENSITES OPTIQUES AVEC UNE RESOLUTION TEMPORELLE DE 100 FS, CE QUI DEVRAIT CONSTITUER UN OUTIL PERTINENT POUR L'ETUDE DU ROLE DES VIBRATIONS MOLECULAIRES AU COURS DES PREMIERES ETAPES DE NOMBREUX PROCESSUS BIOLOGIQUES.
Download or read book Le spectra infrarouge written by Jean Lecomte and published by . This book was released on 1928 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrafast Infrared Vibrational Spectroscopy written by Michael D. Fayer and published by CRC Press. This book was released on 2013-03-04 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of laser-based sources of ultrafast infrared pulses has extended the study of very fast molecular dynamics to the observation of processes manifested through their effects on the vibrations of molecules. In addition, non-linear infrared spectroscopic techniques make it possible to examine intra- and intermolecular interactions and how such interactions evolve on very fast time scales, but also in some instances on very slow time scales. Ultrafast Infrared Vibrational Spectroscopy is an advanced overview of the field of ultrafast infrared vibrational spectroscopy based on the scientific research of the leading figures in the field. The book discusses experimental and theoretical topics reflecting the latest accomplishments and understanding of ultrafast infrared vibrational spectroscopy. Each chapter provides background, details of methods, and explication of a topic of current research interest. Experimental and theoretical studies cover topics as diverse as the dynamics of water and the dynamics and structure of biological molecules. Methods covered include vibrational echo chemical exchange spectroscopy, IR-Raman spectroscopy, time resolved sum frequency generation, and 2D IR spectroscopy. Edited by a recognized leader in the field and with contributions from top researchers, including experimentalists and theoreticians, this book presents the latest research methods and results. It will serve as an excellent resource for those new to the field, experts in the field, and individuals who want to gain an understanding of particular methods and research topics.
Download or read book Introduction to Experimental Infrared Spectroscopy written by Mitsuo Tasumi and published by John Wiley & Sons. This book was released on 2014-11-17 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infrared spectroscopy is generally understood to mean the science of spectra relating to infrared radiation, namely electromagnetic waves, in the wavelength region occurring intermediately between visible light and microwaves. Measurements of infrared spectra have been providing useful information, for a variety of scientific research and industrial studies, for over half a century; this is set to continue in the foreseeable future. Introduction to Experimental Infrared Spectroscopy is intended to be a handy guide for those who have no, or limited, experience in infrared spectroscopic measurements but are utilising infrared-related methods for their research or in practical applications. Written by leading researchers and experienced practitioners, this work consists of 22 chapters and presents the basic theory, methodology and practical measurement methods, including ATR, photoacoustic, IR imaging, NIR, 2D-COS, and VCD. The six Appendices will aid readers in understanding the concepts presented in the main text. Written in an easy-to-understand way this book is suitable for students, researchers and technicians working with infrared spectroscopy and related methods.
Download or read book Ultrafast Infrared And Raman Spectroscopy written by M.D. Fayer and published by CRC Press. This book was released on 2001-03-16 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of procedures for probing bond activation, H-bonded systems, molecular dynamical mechanisms, vibrational dephasing, simple liquids, and proteins and energy flow effects using ultrafast vibrational spectroscopy experiments. It discusses experimental and theoretical methods of ultrafast infrared and Raman measurements.
Download or read book Concepts and Methods of 2D Infrared Spectroscopy written by Peter Hamm and published by Cambridge University Press. This book was released on 2011-02-24 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2D infrared (IR) spectroscopy is a cutting-edge technique, with applications in subjects as diverse as the energy sciences, biophysics and physical chemistry. This book introduces the essential concepts of 2D IR spectroscopy step-by-step to build an intuitive and in-depth understanding of the method. This unique book introduces the mathematical formalism in a simple manner, examines the design considerations for implementing the methods in the laboratory, and contains working computer code to simulate 2D IR spectra and exercises to illustrate involved concepts. Readers will learn how to accurately interpret 2D IR spectra, design their own spectrometer and invent their own pulse sequences. It is an excellent starting point for graduate students and researchers new to this exciting field. Computer codes and answers to the exercises can be downloaded from the authors' website, available at www.cambridge.org/9781107000056.
Download or read book Spectroscopie infrarouge r solue en temps pour l tude de la dynamique femtoseconde du proton en phase liquide written by Wafa Amir and published by . This book was released on 2003 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Terahertz Spectroscopy written by Susan L. Dexheimer and published by CRC Press. This book was released on 2017-12-19 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of new sources and methods in the terahertz spectral range has generated intense interest in terahertz spectroscopy and its application in an array of fields. Presenting state-of-the-art terahertz spectroscopic techniques, Terahertz Spectroscopy: Principles and Applications focuses on time-domain methods based on femtosecond laser sources and important recent applications in physics, materials science, chemistry, and biomedicine. The first section of the book examines instrumentation and methods for terahertz spectroscopy. It provides a comprehensive treatment of time-domain terahertz spectroscopic measurements, including methods for the generation and detection of terahertz radiation, methods for determining optical constants from time-domain measurements, and the use of femtosecond time-resolved techniques. The last two sections explore a variety of applications of terahertz spectroscopy in physics, materials science, chemistry, and biomedicine. With chapters contributed by leading experts in academia, industry, and research, this volume thoroughly discusses methods and applications, setting it apart from other recent books in this emerging terahertz field.
Download or read book Infrared Spectroscopy written by Theophanides Theophile and published by BoD – Books on Demand. This book was released on 2012-04-25 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This informative and state-of-the art book on Infrared Spectroscopy in Life sciences designed for researchers, academics as well as for those working in industry, agriculture and in pharmaceutical companies features 20 chapters of applications of MIRS and NIRS in brain activity and clinical research. It shows excellent FT-IR spectra of breast tissues, atheromatic plaques, human bones and projects assessment of haemodynamic activation in the cerebral cortex, brain oxygenation studies and many interesting insights from a medical perspective.
Download or read book Journal de physique written by and published by . This book was released on 2006 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectroscopie Infrarouge I written by Pierre Barchewitz and published by . This book was released on 1961 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mid Infrared Coherent Sources and Applications written by Majid Ebrahim-Zadeh and published by Springer Science & Business Media. This book was released on 2008-01-02 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering fundamental principles and the state of the art, this is a collection of reviews from experts in mid-infrared (mid-IR) coherent sources. Among the sources covered are optical parametric oscillators, difference frequency generators, and the most recent broadband crystalline, quantum cascade, and fiber lasers. The authors show how advances in mid-IR science and technology make these sources indispensable for a variety of applications.
Download or read book Fourier Transform Infrared Spectra written by John R. Ferraro and published by Academic Press. This book was released on 1978 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectroscopie femtoseconde coh rente bidimensionnelle dans l infrarouge written by Nadia Belabas and published by . This book was released on 2002 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High resolution Infrared Spectroscopy of Transient Molecules Development of Broadband Optical Parametric Oscillators written by Jürgen Krieg and published by . This book was released on 2012 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infrared Spectroscopy written by James E. Stewart and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectroscopie en infrarouge lointain written by Robin Bocquet and published by . This book was released on 1999 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
