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Gas, chemical, and electrical lasers and intense beam control and applications 24-25 January, 2000, San Jose, California

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Published by SPIE in Bellingham, Washington .
Written in English

Subjects:

  • Lasers -- Congresses.,
  • Laser beams -- Congresses.

Book details:

Edition Notes

Includes bibliographic references and author index.

Other titlesIntense beam control and applications
StatementSantanu Basu, Steven J. Davis, Ernest A. Dorko, chairs/editors ; sponsored and published by SPIE--the International Society for Optical Engineering.
GenreCongresses.
SeriesSPIE proceedings series ;, v. 3931, Proceedings of SPIE--the International Society for Optical Engineering ;, v. 3931.
ContributionsBasu, S., Davis, Steven J., Dr., Dorko, Ernest A., 1936-, Society of Photo-optical Instrumentation Engineers.
Classifications
LC ClassificationsTA1673 .G37 2000
The Physical Object
Paginationvii, 334 p. :
Number of Pages334
ID Numbers
Open LibraryOL6900821M
ISBN 100819435481
LC Control Number00711217
OCLC/WorldCa44099273

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This chapter describes the principles and characteristics of a number of gas lasers with medical applications. As examples of molecular infrared devices we describe the CO 2 and CO lasers, which are capable of delivering high average powers or energetic pulses at . 4 1 Lasers: Fundamentals, Types, and Operations N N E 0 E E 1 E 3 E 0 E E 1 2 Fast decay Fast decay Fast decay Pumping Pumping Lasing Lasing (a) (b) Figure Energy level diagram for (a) three- and (b) four level laser systems. N 1 to achieve the condition of population inversion between E 2 and E 1 at moderate pumping. Threshold Gain Coefficient for Lasing Laser beam undergoes File Size: KB. argon. Till then gas lasers were operated in low-pressure electric discharges. Then followed the developments of electron beam pumping, chemical excitation, optical pumping, etc. which rapidly increased the number and scope of these gas lasers.   Proceedings Volume , Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications; Event: Symposium on High-Power Lasers and Applications, , San Jose, CA, United States. ARTICLE (X 3 Σ) ratio using Raman spectroscopy", Proc. SPIE , Gas, Chemical, and Electrical Lasers and Intense Beam Control and.

Chapter 4 Fundamentals of Laser-Material Interaction and Application to Multiscale Surface Modification Matthew S. Brown and Craig B. Arnold Abstract Lasers provide the ability to accurately deliver large amounts of energy into confined regions of a material in order to achieve a desired response. The short laser pulse generated in LIBS measurements, when focused on a liquid will cause dielectric breakdown, and the instantaneous heating produces explosive expansion resulting in a gas vapor bubble. The spectral emissions are less intense when using a laser pulse focused into a liquid due to absorption of the energy by water, and from. Collision control is presently a topic of intense research activity. The increasing versatility of laser sources and laser techniques underpins almost all advances. Until the cost of performing photon-induced chemical reactions is greatly reduced, however, no practical applications can be anticipated for this type of chemical reaction control.   This paper reviews the status and applications of a defensive weapon based on high power lasers, in the battlefield. Laser weapon is a novel concept which utilizes high power laser beam to traverse the distance into incoming objects at a speed of light, and then, destroy or disable s types of lasers and configurations will be discussed in this review including gas lasers, solid state.

  Proceedings Volume , Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications; Event: Symposium on High-Power Lasers and Applications, , San Jose, CA, United States. ARTICLE CITED BY DOWNLOAD PAPER SAVE TO Gas, Chemical, and Electrical Lasers and Intense Beam Control and Applications, (4 May In a chemical oxygen-iodine laser (COIL), chemically prepared, gaseous gain medium at Torr pressure is drawn through the laser cavity by vacuum suction. Multiple-stage vacuum pumps such as Roots blowers or steam ejectors are typically used to receive and compress the gas flowing from the laser and exhaust it to the atmosphere.   Theoretical investigation has been made to describe the discharge in CO 2 lasers excited by high frequency magnetic-confined discharge. The distribution of the electron energy was considered to be a Maxwellian and the most important collision cross sections were considered, the energy balance equation for electron can be put up under the influence of the magnetic field. The lasers described are self-controlled volume-discharge lasers. The book explains self-sustained discharge lasers, self-initiated discharge lasers and technical approaches to laser design. Important topics discussed are laser efficiency, laser beam quality and electric field homogeneity. The book contains many new innovative applications.