Abstract

Three types of absorbing filters were tested for suitability as reproducible attenuators for a Q-switched ruby laser beam. None of the filters tested were irreversibly damaged when irradiated with pulses having peak powers up to 40 MW (beam cross section ∼10⁻⁴ m²). However, Tiffen Photar neutral density filters and Corning filters showed reversible photobleaching (optical saturation) at large pulse energies, while Kodak Wratten neutral density filters did not saturate.

© 1975 Optical Society of America

Reciprocity failure in Kodak HIE film exposed to ruby-laser pulses

Rory O. Rice and James D. Macomber
J. Opt. Soc. Am. 65(12) 1489-1494 (1975)

Attenuation measurement in low-loss optical glass by polarized radiation

Walter Heitmann
Appl. Opt. 14(12) 3047-3052 (1975)

Precision Beam Splitters for CO₂ Lasers

Douglas L. Franzen
Appl. Opt. 14(3) 647-652 (1975)

Laser Induced Damage in Optical Materials: 6th ASTM Symposium

Alexander J. Glass and Arthur H. Guenther
Appl. Opt. 14(3) 698-715 (1975)

Selection of cw Mode-Locked Laser Pulses

V. J. Corcoran, R. W. McMillan, and P. M. Rushworth
Appl. Opt. 14(3) 643-646 (1975)