Laser beam profile formation in HF-laser with plate-like electrodes

A. B. Andramanov; S. A. Kabaev; A. N. Korzenev; Boris V. Lazhintsev; Vladimir A. Nor-Arevyan; A. V. Pisetskaya; V. D. Selemir

doi:10.1117/12.611016

23 March 2005 Laser beam profile formation in HF-laser with plate-like electrodes

A. B. Andramanov, S. A. Kabaev, A. N. Korzenev, Boris V. Lazhintsev, Vladimir A. Nor-Arevyan, A. V. Pisetskaya, V. D. Selemir

Author Affiliations +

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611016
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

Abstract

The paper presents the results of investigations into formation of a laser beam energy density distribution in the near-field zone of an electric-discharge HF-laser with inductive discharge stabilization. The investigations were performed on HF-laser with an H₂-SF₆ active mixture for the interelectrode gaps of 34 mm and 52 mm. In the experiments were used the electrodes with 60 mm wide, formed by the plates with the thickness of 1 mm and the width of 60 mm or 120 mm, which were located at the angle 30° to the optical axis. The electrodes width of 30 mm was formed by the plates with width of 60 mm, located at the angle 30° to the optical axis. The laser energy density distribution in a laser cavity with plane mirrors and discharge emission intensity distribution over its cross section were studied experimentally. It was found that the laser beam profile in the near-field zone and the profile of discharge emission intensity distribution are close in shape. Locating electrode plates at the angle 30° it is possible to increase significantly a generation zone width. For both interelectrode gaps the full width of a laser energy density distribution at half maximum made up ~ 80% of the electrode width.

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A. B. Andramanov, S. A. Kabaev, A. N. Korzenev, Boris V. Lazhintsev, Vladimir A. Nor-Arevyan, A. V. Pisetskaya, and V. D. Selemir "Laser beam profile formation in HF-laser with plate-like electrodes", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611016

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KEYWORDS

Electrodes

Laser energy

Laser optics

Mirrors

Laser resonators

Near field optics

Resolution enhancement technologies

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