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Title: Formation of the beam profile in a plate electrode HF laser

Journal Article · · Quantum Electronics (Woodbury, N.Y.)
; ; ; ; ;  [1]
  1. Russian Federal Nuclear Center 'All-Russian Scientific Research Institute of Experimental Physics', Sarov, Nizhnii Novgorod Region (Russian Federation)

The near-field energy-density distribution of a beam from an HF electric-discharge laser with an inductively stabilised discharge, an SF{sub 6}- and H{sub 2}-based active medium, and interelectrode gaps of 34 and 52 mm is studied. Plates 1-mm thick and 60- or 120-mm wide oriented at an angle of 30{sup 0} to the optical axis serve as 60-mm-wide electrodes. Electrodes 30-mm wide are formed by 60-mm-wide plates also oriented at an angle of 30{sup 0} to the optical axis. The distributions of the laser-radiation density in a resonator with flat mirrors and the discharge-emission intensity over the resonator cross section are studied. The distributions of the laser-radiation density in the near-field zone and the discharge-emission intensity have similar profiles. The arrangement of the electrode plates at an angle of 30{sup 0} provided a considerable increase in the width of the lasing region. The FWHM of the laser-radiation distribution is {approx}80% of the electrode width for the both interelectrode gaps. (beams, modes)

OSTI ID:
21470734
Journal Information:
Quantum Electronics (Woodbury, N.Y.), Vol. 35, Issue 4; Other Information: DOI: 10.1070/QE2005v035n04ABEH002875; ISSN 1063-7818
Country of Publication:
United States
Language:
English