Download or read book Study of Optical Excitation by Highly Monochromatic Tunable Dye Lasers written by Stanford University. Microwave Laboratory and published by . This book was released on 1974 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several aspects of optical excitation by highly monochromatic tunable dye lasers have been investigated, including the development of a narrowband repetitively pulsed dye laser system, the study of Na2 molecules by high resolution saturation spectroscopy, the detection of weak absorption spectra by intracavity quenching of broadband dye laser oscillations, the observation of line broadening by optical nutation in pulsed laser saturation spectroscopy, and the study of two-photon absorption of highly excited Cs states.
Download or read book Ultranarrowband Tunable Dye Laser for New Approaches to Atomic Spectroscopy written by Stanford University. Ginzton Laboratory and published by . This book was released on 1976 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes recent progress in the development and improvement of tunable laser systems for novel approaches to atomic and molecular spectroscopy, and in particular for new precision studies of atomic hydrogen. It reports on: (a) The development of a highly monochromatic, powerful tunable dye laser system, combining a single-frequency cw dye laser oscillator with a multistage pulsed dye laser amplifier. (b) The generation of cw single-frequency coherent radiation near 243 angstrom by summing the frequencies of a Kr ion laser and a cw dye laser in cooled ADP. In addition, the report summarizes three experiment, exploring new coherent light techniques for sensitive high resolution spectroscopy of atoms and molecules. These are (c) The first demonstration of Doppler-free laser polarization spectroscopy, a new technique, which can greatly exceed the sensitivity of saturated absorption spectroscopy. The Stark splitting of the hydrogen Balmer beta line in a glow discharge has been resolved. (d) A demonstration of polarization labeling of molecular sodium This new technique simplifies the unraveling of complex absorption spectra by identifying lines with a common lower state. (e) High resolution two-photon spectroscopy of the excited state of normal and deuterated benzene. The observed rotational contours have been reported by computer fits, yielding accurate molecular constants.
Download or read book Research in Progress written by and published by . This book was released on 1975 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Current Laser Abstracts written by and published by . This book was released on 1978 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-05 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infrared Absorbing Dyes written by Masaru Matsuoka and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: New laser technology has developed a new dye chemistry! Development of the gallium-arsenic semiconductor laser (diode laser) that emits laser light at 780-830 nm has made possible development of new opto-electronic systems including laser optical recording systems, thermal writing display systems, laser printing systems, and so on. Medical applications of lasers in photodynamic therapy for the treatment of cancer were also developed. In such systems, the infrared absorbing dyes OR dyes) are currently used as effective photoreceivers for diode lasers, and will become the key materials in high technology. At the present time the chemistry of IR dyes is the most important and interesting field in dye chemistry. Laser light can be highly monochromatic, very well collimated, coher ent, and, in some cases, extremely powerful. These characteristics make diode lasers a very cheap, convenient, and useful light source for a variety of applications in science and technology. For these purposes, however, IR dyes with special characteristics are required. To develop new IR dyes, it is most important to establish the correlation between the chemical structures of dyes and other characteristics of dyes, such as their absorption spectra. Molecular design of IR dyes predicting the Amax and Emax values by molecular orbital (MO) calculations is now possible even by using a personal computer, and many types of new IR dyes have been demonstrated. Also, new opto-electronic systems using IR dyes as photoreceivers have been reported recently.
Download or read book Photobiology in Medicine written by Giulo Jori and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Man has recognised an association of light with life and medicine for over 3000 years. Today the major challenges to this topic include the elucidation of photochemical reactions involved in photobiology at the molecular level. This includes the use of a variety of modem probing techniques that directly measures the reactivity of excited states and free radicals involved in biological reactions. This text-book is based on such an approach and has arisen from some of the lectures delivered at the NATO ASI held at Hotel Capo Caccia near the Centre for Advanced Research in Photobiology (CARP) in Sardegia, Italy. The ASI took place from 30 September -13 October 1993 and involved a total membership of 90. The book, like the NATO ASI itself, is divided into four themes starting with fundamental aspects and ending with complex medically related systems. Thus Theme 1 covers aspects of the underlying photophysics and photochemistry with particular emphasis on modem experimental techniques to study molecular mechanisms of biological processes. Theme 2 applies many of these fundamental studies to the chemical reactions of most relevance to photobiology and photomedicine such as photo-addition, -isomerization, -sensitization and -pigmentation. The third and fourth Themes deal with the deleterious and therapeutic aspects of light with particular emphasis on the use of Photo-Dynamic Therapy (PDT) to treat cancer and on viral and micro bioi infections.
Download or read book Laser Stimulated Scattering and Multiphoton Excitation written by Guang S. He and published by Oxford University Press. This book was released on 2022-02-25 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Laser stimulated scattering and multiphoton excitation is the first book to comprehensively cover laser stimulated scattering studies and laser multiphoton excitation-related studies. It is essential reading for academics, research scientists, and students working or interested in the areas of nonlinear optics, nonlinear photonics, laser spectroscopy, physical optics, physical chemistry, and optoelectronic engineering. Featuring cutting-edge discussions of new discoveries in the field, including stimulated Rayleigh-Bragg scattering (SRBS) and stimulated Mie scattering (SMS), the book also examines multiphoton excitation-based nonlinear optical effects, photoelectric effects, atomic and molecular ionizatoin effects, and molecular dissociation effects. Each major stimulated scattering effect is presented in its own chapter, alongside a description of the key concepts and mechanisms, as well as the necessary theoretical formulations. Furthermore, this is an engaging text that explains the latest experimental research achievements and their scientific and technological applications."--Back cover
Download or read book D O D Sponsored Research at Stanford Its impact on the university by Norm V Alber et al written by and published by . This book was released on 1971 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Spectrum of Atomic Hydrogen advances written by G. W. Series and published by World Scientific. This book was released on 1988 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: After more than a century of study, the hydrogen atom still presents challenges and opportunities to theoretical as well as to experimental physicists. The discovery of the Lamb shift in the late nineteen forties, followed by the development of QED and the introduction of powerful new experimental techniques in the nineteen sixties and seventies, have preserved for hydrogen its central place in atomic physics. Part I of this book, a reprint of the work published in 1957, covers the period from the earliest days up to the late nineteen fifties. Part II, a collection of progress reports written by well-known specialists on hydrogen and hydrogen-like systems, presents the advances in theory and experiment that have occurred since that time.
Download or read book Stanford University Electronics Research Review written by and published by . This book was released on 1975 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes brief descriptions of projects, listings of contracts and grant support, and listings of publications.
Download or read book Unique 3 in 1 Research Development Directory written by and published by . This book was released on 1974 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book D O D Sponsored Research at Stanford written by and published by . This book was released on 1971 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1975 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inventory of Federal Energy related Environment and Safety Research for written by and published by . This book was released on 1978 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
