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Proceedings Paper

Measurements of profile of energy density and wavefront of pulsed laser beam propagating through near-resonant medium
Author(s): Katsuaki Akaoka; Ikuo Wakaida; Takashi Arisawa
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Paper Abstract

We measured the energy density profile and wavefront of the laser beam through the near resonator sodium heat pipe using a linear sensor camera and a Shack-Hartmann type wavefront sensor. Development of the wavefront was obtained as a function of laser wavelength, and self-focusing and -defocusing were observed for a small laser beam diameter. The energy density profile of the laser beam shows good agreement with the result of our simulation code based on the coupled Maxwell-Density Matrix equations including transverse and time- dependent variations. For the laser beam with large diameter, change of wavefront from the convex to the concave in the shorter wavelength region was observed.

Paper Details

Date Published: 17 April 1995
PDF: 6 pages
Proc. SPIE 2375, Beam Control, Diagnostics, Standards, and Propagation, (17 April 1995); doi: 10.1117/12.206972
Show Author Affiliations
Katsuaki Akaoka, Japan Atomic Energy Research Institute (Japan)
Ikuo Wakaida, Japan Atomic Energy Research Institute (Japan)
Takashi Arisawa, Japan Atomic Energy Research Institute (Japan)

Published in SPIE Proceedings Vol. 2375:
Beam Control, Diagnostics, Standards, and Propagation
Lindsay W. Austin; Adolf Giesen; Daniel H. Leslie, Editor(s)

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