Download or read book Light and Matter Ic Licht und Materie Ic written by Hermann Haken and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of the laser came into existence more than a decade ago when ScHAWLOW and TowNES showed that the maser principle could be extended to the optical region. Since then this field has developed at an incredible pace which hardly anybody could have foreseen. The laser turned out to be a meeting place for such different disciplines as optics (e.g. spectroscopy), optical pumping, radio engineering, solid state physics, gas discharge physics and many other fields. The underlying structure of the laser theory is rather simple. The main questions are: what are the light intensities (a), what are the frequencies (b), what fluctua tions occur (c), or, in other words, what are the coherence properties. Roughly speaking these questions are treated by means of the rate equations (a), the semiclassical equations (b), and the fully quantum mechanical equations (c), respectively. The corresponding chapters are written in such a way that they can be read independently from each other. For more details about how to proceed, the reader is advised to consult Chap. I.4.
Download or read book Handbuch der Physik pt 2a c Licht und Materie Ia Ic written by Siegfried Flügge and published by . This book was released on 1955 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of Copyright Entries Third Series written by Library of Congress. Copyright Office and published by Copyright Office, Library of Congress. This book was released on 1973 with total page 1938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electronic Engineering and Informatics written by G. Izat Rashed and published by IOS Press. This book was released on 2024-04-11 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electronic engineering and informatics are disciplines which underpin the complex digital technology on which we have all now come to depend. This book presents the proceedings of ICEEI 2023, the 5th International Conference on Electronic Engineering and Informatics, which took place as a hybrid event from 23 to 25 June 2023 in Wuhan, China, with around 150 participating delegates. The conference brought together leading academics, researchers and practitioners from around the world to present recent innovations, trends, and concerns, and discuss practical challenges and solutions. It also gave delegates the opportunity to share their experience and research results and exchange views on all aspects of electronic engineering and informatics. A total of 266 submissions were received for the conference, of which 93 were accepted for presentation and publication after a careful double-blind peer review process. The papers are divided into 3 sections, covering electronic device simulation and system modelling; target recognition and information decision making; and network data processing and security detection. Providing a current overview of advances and research results in the relevant fields, the book will be of interest to those working in all areas of electronic engineering and informatics.
Download or read book Mid infrared Quantum Cascade Lasers for Chaos Secure Communications written by Olivier Spitz and published by Springer Nature. This book was released on 2021-05-15 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mid-infrared domain is a promising optical domain because it holds two transparency atmospheric windows, as well as the fingerprint of many chemical compounds. Quantum cascade lasers (QCLs) are one of the available sources in this domain and have already been proven useful for spectroscopic applications and free-space communications. This thesis demonstrates how to implement a private free-space communication relying on mid-infrared optical chaos and this requires an accurate cartography of non-linear phenomena in quantum cascade lasers. This private transmission is made possible by the chaos synchronization of two twin QCLs. Chaos in QCLs can be generated under optical injection or external optical feedback. Depending on the parameters of the optical feedback, QCLs can exhibit several non-linear phenomena in addition to chaos. Similarities exist between QCLs and laser diodes when the chaotic dropouts are synchronized with an external modulation, and this effect is known as the entrainment phenomenon. With a cross-polarization reinjection technique, QCLs can generate all-optical square-waves. Eventually, it is possible to trigger optical extreme events in QCLs with tilted optical feedback. All these experimental results allow a better understanding of the non-linear dynamics of QCLs and will extend the potential applications of this kind of semiconductor lasers.
Download or read book Light and Matter Id Licht und Materie Id written by H. Bilz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamical properties of solids have recently attracted renewed interest in connection with the increasing understanding of phase transitions and re lated phenomena. In particular, soft modes or, more generally, phonon 'anom alies' seem to play an important role in structural and electronic phase tran sitions, such as ferroelectric or superconducting transitions. The understanding of the mechanisms responsible for the occurrence of unusually low frequencies in phonon spectra requires a detailed analysis of the microscopic forces governing the lattice vibrations. Of particular importance is the influence of the electron lattice interaction in the adiabatic approximation which in many cases is the origin of peculiarities in the phonon self-energy. In this work the vibrational spectra of pure non-metals and of those con taining point defects are investigated. ' In these materials the interrelation be tween the pseudo-harmonic forces (determining the phonon dispersion re lations) and the non-linear anharmonic and electron-phonon forces (as they act in infrared and Raman spectra) is most obvious and can be quantitatively analysed in terms of appropriate models. The main task is to arrive at a physically correct treatment of electronic degrees of freedom, as for example in an electronic 'shell' model, which leads to the description of phonon spectra in terms of long-range polarizabilities and short-range deformabilities. The pur pose of our review is to stimulate further investigations which, we hope, will result in explicit relations between the parameters of the semi-microscopic models and the matrix elements from the electronic band structure.
Download or read book Light and Matter II Licht und Materie II written by S. Flügge and published by Springer. This book was released on 2013-12-01 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Output Coupling in Optical Cavities and Lasers written by Kikuo Ujihara and published by John Wiley & Sons. This book was released on 2010-02-19 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authored by one of the founders and major players in this field of research, this is a thorough and comprehensive approach to the quantum mechanical output coupling theory of lasers -- an important area of optical physics that has so far been neglected in the scientific literature. Clearly structured, the various sections cover one-dimensional optical cavity, laser, and microcavity laser with output coupling, atom-field interaction in a free-dimensional space, 3D analysis of spontaneous emission in a planar microcavity with output coupling, plus two-atom spontaneous emission. With numerous end-of-chapter problems, this is vital reading for theoretical physicists, laser specialists, and physicists in industry, as well as students and lecturers in physics.
Download or read book The Publishers Trade List Annual written by and published by . This book was released on 1973 with total page 1946 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Books and Pamphlets Including Serials and Contributions to Periodicals written by Library of Congress. Copyright Office and published by . This book was released on 1972 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Library Journal written by Melvil Dewey and published by . This book was released on 1969 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes, beginning Sept. 15, 1954 (and on the 15th of each month, Sept.-May) a special section: School library journal, ISSN 0000-0035, (called Juniorlibraries, 1954-May 1961). Issued also separately.
Download or read book Library Journal written by and published by . This book was released on 1969-10 with total page 1470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Publishers Weekly written by and published by . This book was released on 1969 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quid est sacramentum written by Walter Melion and published by BRILL. This book was released on 2019-10-07 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: ‘Quid est sacramentum?’ Visual Representation of Sacred Mysteries in Early Modern Europe, 1400–1700 investigates how sacred mysteries (in Latin, sacramenta or mysteria) were visualized in a wide range of media, including illustrated religious literature such as catechisms, prayerbooks, meditative treatises, and emblem books, produced in Italy, France, and the Low Countries between ca. 1500 and 1700. The contributors ask why the mysteries of faith and, in particular, sacramental mysteries were construed as amenable to processes of representation and figuration, and why the resultant images were thought capable of engaging mortal eyes, minds, and hearts. Mysteries by their very nature appeal to the spirit, rather than to sense or reason, since they operate beyond the limitations of the human faculties; and yet, the visual and literary arts served as vehicles for the dissemination of these mysteries and for prompting reflection upon them. Contributors: David Areford, AnnMarie Micikas Bridges, Mette Birkedal Bruun, James Clifton, Anna Dlabačková, Wim François, Robert Kendrick, Aiden Kumler, Noria Litaker, Walter S. Melion, Lars Cyril Nørgaard, Elizabeth Pastan, Donna Sadler, Alexa Sand, Tanya Tiffany, Lee Palmer Wandel, Geert Warner, Bronwen Wilson, and Elliott Wise.
Download or read book Catalogue of Title entries of Books and Other Articles Entered in the Office of the Librarian of Congress at Washington Under the Copyright Law Wherein the Copyright Has Been Completed by the Deposit of Two Copies in the Office written by Library of Congress. Copyright Office and published by . This book was released on 1973 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of Copyright Entries Third Series written by Library of Congress. Copyright Office and published by . This book was released on 1970 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: The record of each copyright registration listed in the Catalog includes a description of the work copyrighted and data relating to the copyright claim (the name of the copyright claimant as given in the application for registration, the copyright date, the copyright registration number, etc.).
Download or read book Journal of the Optical Society of America written by and published by . This book was released on 1971 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
