Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Optical Performance Evaluation Of Infrared Transmitting Materials Lq 10 High Power Laser Window Program
Download Optical Performance Evaluation Of Infrared Transmitting Materials Lq 10 High Power Laser Window Program full books in PDF, epub, and Kindle. Read online Optical Performance Evaluation Of Infrared Transmitting Materials Lq 10 High Power Laser Window Program ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Optical Performance Evaluation of Infrared Transmitting Materials (LQ-10 High Power Laser Window Program) by : Bernard Bendow
Download or read book Optical Performance Evaluation of Infrared Transmitting Materials (LQ-10 High Power Laser Window Program) written by Bernard Bendow and published by . This book was released on 1972 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: A nonuniform laser beam traversing a material sample undergoes thermal lensing, that is, distortion and defocusing due to thermally induced changes in refractive index and bulging of sample faces. Vector Kirchhoff diffraction theory is applied to provide a detailed picture of the transmitted beam properties in the presence of lensing. In particular, the time evolution of the focal properties and the intensity degradation are investigated. Four distinct characteristic time regimes are identified for rating solids: ultrasmall, small, transitional, and steady state. The calculations account for birefringence due to thermally induced stress, which is shown to play a major role in the alkali halides. The optical performance of transmitting materials in various time regimes is evaluated for Gaussian beams incident on thin circular samples. Detailed quantitative ratings are presented for a wide range of transmitting materials at 10.6 micrometers. (Author Modified Abstract).
Book Synopsis Optical Performance Evaluation of Infrared Transmitting Materials (LQ-10 High Power Laser Window Program) by : Bernard Bendow
Download or read book Optical Performance Evaluation of Infrared Transmitting Materials (LQ-10 High Power Laser Window Program) written by Bernard Bendow and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A nonuniform laser beam traversing a material sample undergoes thermal lensing, that is, distortion and defocusing due to thermally induced changes in refractive index and bulging of sample faces. Vector Kirchhoff diffraction theory is applied to provide a detailed picture of the transmitted beam properties in the presence of lensing. In particular, the time evolution of the focal properties and the intensity degradation are investigated. Four distinct characteristic time regimes are identified for rating solids: ultrasmall, small, transitional, and steady state. The calculations account for birefringence due to thermally induced stress, which is shown to play a major role in the alkali halides. The optical performance of transmitting materials in various time regimes is evaluated for Gaussian beams incident on thin circular samples. Detailed quantitative ratings are presented for a wide range of transmitting materials at 10.6 micrometers. (Author Modified Abstract)
Book Synopsis Optical Performance Evaluation of Infrared Transmitting Materials (LQ-10 High Power Laser Window Program). by :
Download or read book Optical Performance Evaluation of Infrared Transmitting Materials (LQ-10 High Power Laser Window Program). written by and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: A nonuniform laser beam traversing a material sample undergoes thermal lensing, that is, distortion and defocusing due to thermally induced changes in refractive index and bulging of sample faces. Vector Kirchhoff diffraction theory is applied to provide a detailed picture of the transmitted beam properties in the presence of lensing. In particular, the time evolution of the focal properties and the intensity degradation are investigated. Four distinct characteristic time regimes are identified for rating solids: ultrasmall, small, transitional, and steady state. The calculations account for birefringence due to thermally induced stress, which is shown to play a major role in the alkali halides. The optical performance of transmitting materials in various time regimes is evaluated for Gaussian beams incident on thin circular samples. Detailed quantitative ratings are presented for a wide range of transmitting materials at 10.6 micrometers. (Author Modified Abstract).
Book Synopsis Optical Properties of Infrared Transmitting Materials (LQ-10 High Power Laser Window Program). by : Bernard Bendow
Download or read book Optical Properties of Infrared Transmitting Materials (LQ-10 High Power Laser Window Program). written by Bernard Bendow and published by . This book was released on 1973 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The choice of appropriate infrared transmitting materials for high-power laser applications necessitates a knowledge of various optical parameters. It has become important to be able to predict optical parameters from either theoretical or phenomenological models. Considerable progress has been made recently, especially with regard to the frequency dependence of refraction, absorption alpha and photoelasticity. It has been found, for example, that frequency dispersion is important at 10.6 micrometers for all three of the latter quantities in most alkali-halides. For most semiconductors, on the other hand, only the effects on alpha are significant. The mix of existing experimental data with recent theory is now providing us with a view of the magnitude, frequency dependence, and temperature dependence of optical parameters of infrared transmitting materials.
Book Synopsis Theory of On-axis Intensity Distribution in Thermal Lensing (LQ-10 High Power Laser Window Program) by : Bernard Bendow
Download or read book Theory of On-axis Intensity Distribution in Thermal Lensing (LQ-10 High Power Laser Window Program) written by Bernard Bendow and published by . This book was released on 1972 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of its over-all program in the identification, preparation, and application of materials for use as high-power infrared laser windows, AFCRL has investigated theoretically and experimentally the thermal lensing caused by the distortion and defocusing of a laser beam traversing a material medium. In the report, the vector Kirchhoff approximation is applied to obtain the diffraction field due to a nonuniform laser beam normally incident on an optically isotropic, annular-shaped solid lens. Detailed computations of the on-axis intensity distribution versus time in both abstract and real variables are presented for Gaussian beams incident on various transmitting materials at 10.6 micrometers. The results of the computations demonstrate the role played by induced thermal stresses, incident beam shape, refocused beam, center-chopped beam, the the mating of two compensating materials. Two rough figures of merit are given for rating any window's optical and mechanical-optical performance. It is shown how lensing depends on material parameters. (Author).
Book Synopsis Laser Window and Mirror Materials by : G. C. Battle
Download or read book Laser Window and Mirror Materials written by G. C. Battle and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charles S. Sahagian Chief, Electromagnetic Materials Technology Branch Deputy for Electronic Technology Hanscom AFB, MA 01731 I t should not be surprising that an event as significant as the discovery of the laser has had some con comitant impact on other areas of science and technology, but the extent of the impact was grossly unpredicted. Upon perusal of this bibliography, devoted to the subject of laser window and mirror materials, it becomes very apparent that the effect of the laser on materials R&D has been enormous. Several hundred papers and reports, representing millions of dollars of effort, have been promulgated over the past decade; and as new frequencies, improved tunability, higher power, and other charac teristics are achieved, we can expect even greater demands and requirements on the materials com munity. What are some of the highlights disclosec by this bibliography with regard to work already ac complished? First, one can note the extensive investigations into developing new materials while at the same time improving old ones. Among the latter, alkali halides, for example, have essentially had a rebirth. I n the past five years more progress has been achieved in the chemical and structural perfec tion of this class of materials than in the entire preceding century. Also carried along in the surge for improved laser materials have been the alkaline earth fluorides (prime candidates for 3-to 5-J,Lm ap plications), chalcogenides, semiconductors, oxides, and others.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theory of On-axis Intensity Distribution in Thermal Lensing (LQ-10 High Power Laser Window Program) by : Bernard Bendow
Download or read book Theory of On-axis Intensity Distribution in Thermal Lensing (LQ-10 High Power Laser Window Program) written by Bernard Bendow and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of its over-all program in the identification, preparation, and application of materials for use as high-power infrared laser windows, AFCRL has investigated theoretically and experimentally the thermal lensing caused by the distortion and defocusing of a laser beam traversing a material medium. In the report, the vector Kirchhoff approximation is applied to obtain the diffraction field due to a nonuniform laser beam normally incident on an optically isotropic, annular-shaped solid lens. Detailed computations of the on-axis intensity distribution versus time in both abstract and real variables are presented for Gaussian beams incident on various transmitting materials at 10.6 micrometers. The results of the computations demonstrate the role played by induced thermal stresses, incident beam shape, refocused beam, center-chopped beam, the the mating of two compensating materials. Two rough figures of merit are given for rating any window's optical and mechanical-optical performance. It is shown how lensing depends on material parameters. (Author)
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1975-03 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
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 Government Reports Index written by and published by . This book was released on 1975 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lasers and Masers written by and published by . This book was released on 1974 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: References and abstracts to international literature (mostly journal articles). Classified arrangement. Subject, author, and source indexes. Ser. 1, 1974: 8256 references.
Book Synopsis Bibliography, with Abstracts, of AFCRL Publications from 1 January to 31 March 1973 by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Bibliography, with Abstracts, of AFCRL Publications from 1 January to 31 March 1973 written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1973 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography lists all AFCRL in-house reports, journal articles, and contractor reports from 1 January top 31 March 1973.
Book Synopsis Theory of On-Axis Intensity Distribution in Thermal Lensing (LQ-10 High Power Laser Window Program). by :
Download or read book Theory of On-Axis Intensity Distribution in Thermal Lensing (LQ-10 High Power Laser Window Program). written by and published by . This book was released on 1972 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of its over-all program in the identification, preparation, and application of materials for use as high-power infrared laser windows, AFCRL has investigated theoretically and experimentally the thermal lensing caused by the distortion and defocusing of a laser beam traversing a material medium. In the report, the vector Kirchhoff approximation is applied to obtain the diffraction field due to a nonuniform laser beam normally incident on an optically isotropic, annular-shaped solid lens. Detailed computations of the on-axis intensity distribution versus time in both abstract and real variables are presented for Gaussian beams incident on various transmitting materials at 10.6 micrometers. The results of the computations demonstrate the role played by induced thermal stresses, incident beam shape, refocused beam, center-chopped beam, the the mating of two compensating materials. Two rough figures of merit are given for rating any window's optical and mechanical-optical performance. It is shown how lensing depends on material parameters. (Author).
Book Synopsis Journal of Current Laser Abstracts by :
Download or read book Journal of Current Laser Abstracts written by and published by . This book was released on 1973 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1975-03 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
