Studies of blackbody-pumped lasers

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Studies of blackbody-pumped lasers: semi-annual progress report, January 1, - J Technical Report: Studies of blackbody-pumped lasers. Semiannual progress report, 1 January June Studies of blackbody-pumped lasers semi-annual progress report, January 1, - J [Washington, DC: National Aeronautics and Space Administration.

MLA Citation. Christiansen, W. and Chang, Jian K. and Sirota, Mike. and United States. National Aeronautics and Space Administration.

A large scale pulsed laser system with heated tantalum foils as the blackbody pumping source was built in the laboratory. A deeper understanding of the physics and the scaling factors of the blackbody pumped CO{sub 2} laser has been achieved through parametric scaling studies using this system.

Analytical and experimental studies were performed for mixtures of CO with Ar and N 2. The details of the characteristics of CO as laser medium for a blackbody pumped system have been modeled and gains of /m have been predicted in some instances.

However, lasing of CO has not yet been observed in. Scaling studies of solar pumped lasers [microform]: semi-annual progress report, January 1, J / W.H. Christiansen and J. Chang National Aeronautics and Space Administration ; National Technical Information Service, distributor [Washington, D.C.: Springfield, Va Visit to get more information about this book, to buy it in print, or to download it as a free PDF.

This unique book provides an overview of the principle and applications of lasers enriched with numerous over fifty years old, lasers continue to amaze us. The. Reidar Thoralf Christiansen has written: 'European folklore in America' 'Gamle norske visdomsord' -- subject(s): Norwegian Proverbs 'Studies in Irish and Scandinavian folktales' -- subject(s.

High power continuous wave blackbody pumped lasers with efficiencies on the order of 20 pct. or more are feasible, provided transparent optical materials are available and lasing threshold is reached. Solar-powered blackbody-pumped lasers Walter H. Christiansen ; J. Marcos Sirota Proc. SPIE8th Intl Symp on Gas Flow and Chemical Lasers, pg (1 February ); doi: / What is the basic difference between DIV and IDIV instruction in microprocessor.

What is Substitute for emplex. Why did Lorenzo de Medici write his letter to his son. Blackbody-pumped CO 2 lasers using Gaussian and waveguide cavities Jim J. Chang ; Walter H. Christiansen Proc. SPIEGas and Metal Vapor Lasers and Applications, pg (1 May ); doi: / An experiment to demonstrate the physics of blackbody-pumped lasers has been performed.

An electrically heated oven simulates the equivalent solar-heated blackbody cavity. Nasif Nahle said: “Central to the theory of Anthropogenic Global Warming (AGW) is the assumption that the Earth and every one of its subsystems behaviors as if they were blackbodies, that is their “emissivity” potential is calculated as There is no such assumption in atmospheric physics.

For example, take a look at the equations of radiative transfer in Understanding Atmospheric. American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. Full text of "NASA scientific and technical publications: A catalog of Special Publications, Reference Publications, Conference Publications, and Technical Papers, " See other formats.

Lasant Materials for Blackbody-Pumped Lasers. NASA Technical Reports Server (NTRS) Deyoung, R. (Editor); Chen, K. (Editor) Blackbody-pumped solar lasers are proposed to convert sunlight into laser power to provide future space power and propulsion are two classes of blackbody-pumped direct cavity-pumped system in which the lasant molecule is.

Dry pulverized solid material pump. DOEpatents. Meyer, John W.; Bonin, John H.; Daniel, Jr., Arnold D. Apparatus is shown for substantially increasing the. Point defense systems, railguns, coilguns, conventional guns, or even lasers, are power limited in this exchange. There is a finite amount of power to use when firing, except for conventional guns.

Conventional guns suffer from low muzzle velocities, and high muzzle velocities are crucial to intercepting missiles coming at you at greater than 1.Infrastructure at any of these 5 locations could be kept in place with a small station keeping expense.

Other high earth orbits would be destabilized by the influences of the earth, moon or sun. Of these 5 locations, EML2 is the closest to escape.Other book chapters focus on the solar thermophotovotaic (STPV) conversion, such as work by Fahrenbruch and Bube [9], Green [10] and Würfel [4].

Additionally, sections in direct energy conversion books briefly discuss TPV conversion. Examples are a book by Decher [11] and an older book .