Experimental test of resonant absorption theory. Final report, January 1, 1978-December 31, 1979

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Description

This experimental research has probed the nature of resonant absorption (RA) of laser light by laser-produced plasmas. The plasmas were created by optical breakdown of a shockfront produced in an electrothermal shock tube. This procedure allows the density structure of the plasma, and in particular, the orientation of the plasma critical-density surface, to be reproducibly formed from one shot to the next. Thus, for the first time, RA has been controllably and reproducibly studied in isolation from other plasma physics. The angular distribution of fast electrons emitted by RA and wavebreaking has been studied, and it is observed that the ... continued below

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Pages: 15

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Yablonovitch, E May 1, 1979.

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Description

This experimental research has probed the nature of resonant absorption (RA) of laser light by laser-produced plasmas. The plasmas were created by optical breakdown of a shockfront produced in an electrothermal shock tube. This procedure allows the density structure of the plasma, and in particular, the orientation of the plasma critical-density surface, to be reproducibly formed from one shot to the next. Thus, for the first time, RA has been controllably and reproducibly studied in isolation from other plasma physics. The angular distribution of fast electrons emitted by RA and wavebreaking has been studied, and it is observed that the emission is directed in a narrow cone centered on the shockfront density-gradient vector, in agreement with the theory of wavebreaking.

Physical Description

Pages: 15

Notes

NTIS, PC A02/MF A01.

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  • Report No.: COO-4631-11
  • Grant Number: AS02-78DP40018
  • DOI: 10.2172/5176271 | External Link
  • Office of Scientific & Technical Information Report Number: 5176271
  • Archival Resource Key: ark:/67531/metadc1053080

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • May 1, 1979

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

Description Last Updated

  • Jan. 25, 2018, 12:48 p.m.

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Yablonovitch, E. Experimental test of resonant absorption theory. Final report, January 1, 1978-December 31, 1979, report, May 1, 1979; United States. (digital.library.unt.edu/ark:/67531/metadc1053080/: accessed June 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.