Absorption and damage threshold of KCl and KBr at 10.6 um

Manfred Rahe; Reinhard Kunze; Holger Schmidt; Detlev Ristau; Herbert Welling

doi:10.1117/12.60102

29 July 1992 Absorption and damage threshold of KCl and KBr at 10.6 um

Manfred Rahe, Reinhard Kunze, Holger Schmidt, Detlev Ristau, Herbert Welling

Proceedings Volume 1624, Laser-Induced Damage in Optical Materials: 1991; (1992) https://doi.org/10.1117/12.60102
Event: Laser-Induced Damage in Optical Materials: 1991, 1991, Boulder, CO, United States

Abstract

In this paper we report on an empirical study of the absorption and laser damage threshold behavior of uncoated KCI and KBr windows at 10.6 micrometers . Absorption measurements were performed with the aid of CO₂ laser calorimeter. Single-shot damage thresholds at different spot sizes were measured by a computer-controlled test facility using 100 ns pulses from a TEA-CO₂ laser. A video microscopy system was installed for on-line damage detection. Onset-damage thresholds (0% LIDT) are compared with the 50% damage thresholds. Damage morphology was investigated by Nomarski microscopy.

Citation Download Citation

Manfred Rahe, Reinhard Kunze, Holger Schmidt, Detlev Ristau, and Herbert Welling "Absorption and damage threshold of KCl and KBr at 10.6 um", Proc. SPIE 1624, Laser-Induced Damage in Optical Materials: 1991, (29 July 1992); https://doi.org/10.1117/12.60102

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