Electron Photon Interaction in Dense Media

Author: Helmut Wiedemann
Publisher: Springer Science & Business Media
ISBN: 940100367X
Format: PDF, Kindle
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A comprehensive survey of recent theoretical and experimental progress in the area of electron-photon interaction and dense media. A state-of-the-art discussion of radiation production, with descriptions of new ideas and technologies that enhance the production of X-rays in the form of channelling, transition and parametric X-ray production. Progress in electron beam physics to produce sub-picosecond electron bunches from low-energy linear accelerators make it possible to produce coherent, high brightness, submillimeter radiation and sub-picosecond X-ray pulses. Micro-undulators in the form of bent crystalline structures hold great promise as future X-ray sources.

Advanced Radiation Sources and Applications

Author: Helmut Wiedemann
Publisher: Springer Science & Business Media
ISBN: 1402034504
Format: PDF, ePub
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A NATO Advanced Research Workshop on ”Advanced Radiation Sources and Applications” was held from August 29 to September 2, 2004. Hosted by the Yerevan Physics Institute, Yerevan, Armenia, 30 invited researchers from former Soviet Union and NATO countries gathered at Nor-Hamberd, Yerevan, on the slopes of Mount Aragats to discuss recent theoretical as well as expe- mental developments on means of producing photons from mostly low energy electrons. Thismeetingbecamepossiblethroughthegenerousfundingprovidedbythe NATO Science Committee and the programme director Dr. Fausto Pedrazzini in the NATO Scienti?c and Environmental Affairs Division. The workshop - rectors were Robert Avakian, Yerevan Physics Institute, Armenia and Helmut Wiedemann, Stanford (USA). Robert Avakian provided staff, logistics and - frastructure from the Yerevan Physics institute to assure a smooth execution of the workshop. Special thanks goes to Mrs. Ivetta Keropyan for admin- trative and logistics support to foreign visitors. The workshop was held at the institute’s resort in Nor-Hamberd on the slopes of Mount Aragats not far from the Yerevan cosmic ray station. The isolation and peaceful setting of the resort provided the background for a fruitful week of presentations and discussions. Following our invitations, 38 researchers in this ?eld came to the workshop from Armenia, Belarus, Romania, Russia, Ukraine, Denmark, France, G- many and the USA. Commuting from Yerevan local scientists joined the daily presentations. Over a ?ve day period 40 presentations were given.

Confined Electrons and Photons

Author: Elias Burstein
Publisher: Springer Science & Business Media
ISBN: 1461519632
Format: PDF, ePub
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The optical properties of semiconductors have played an important role since the identification of semiconductors as "small" bandgap materials in the thinies, due both to their fundamental interest as a class of solids baving specific optical propenies and to their many important applications. On the former aspect we can cite the fundamental edge absorption and its assignment to direct or indirect transitions, many-body effects as revealed by exciton formation and photoconductivity. On the latter aspect, large-scale applications sucb as LEDs and lasers, photovoltaic converters, photodetectors, electro-optics and non-linear optic devices, come to mind. The eighties saw a revitalization of the whole field due to the advent of heterostructures of lower-dimensionality, mainly two-dimensional quantum wells, which through their enhanced photon-matter interaction yielded new devices with unsurpassed performance. Although many of the basic phenomena were evidenced through the seventies, it was this impact on applications which in turn led to such a massive investment in fabrication tools, thanks to which many new structures and materials were studied, yielding funher advances in fundamental physics.

Photonic Band Gaps and Localization

Author: C.M. Soukoulis
Publisher: Springer Science & Business Media
ISBN: 1489916067
Format: PDF
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This volume contains the papers presented at the NATO Advanced Research Workshop on Localization and Propagation o[ Classical Waves in Random and Periodic Media held in Aghia Pelaghia, Heraklion, Crete, May 26- 30, 1992. The workshop's goal was to bring together theorists and experimentalists from two related areas, localization and photonic band gaps, to highlight their common interests. The objectives of the workshop were (i) to assess the state of-the-art in experimental and theoretical studies of structures exhibiting classical wave band gaps and/or localization, (ii) to discuss how such structures can be fabricated to improve technologies in different areas of physics and engineering, and (iii) to identify problems and set goals for further research. Studies of the propagation of electromagnetic (EM) waves in periodic and/or disordered dielectric structures (photonic band gap structures) have been and continue to be a dynamic area of research. Anderson localization of EM waves in disordered dielectric structures is of fundamental interest where the strong ei-ei interaction efFects entering the eIectron-localization are absent.

Photon based Nanoscience and Nanobiotechnology

Author: Jan J. Dubowski
Publisher: Springer Science & Business Media
ISBN: 1402055234
Format: PDF, Kindle
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This book provides a set of articles reviewing state-of-the art research and recent advancements in the field of photon-matter interaction for micro/nanomaterials synthesis and manipulation of properties of biological and inorganic materials at the atomic level. Photon-based nanoscience and related technologies have created exciting opportunities for the fabrication and characterization of nano(bio)material devices and systems.