Infrared absorption limits of HF and DF laser windows
- 15 May 1976
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 28 (10) , 610-611
- https://doi.org/10.1063/1.88584
Abstract
The infrared absorption coefficients of NaCl, KCl, NaF, CaF2 and BaF2 have been determined by calorimetric techniques at the laser wavelengths 1.06, 2.7, and 3.8 μm. The absorption level of the best crystals can be 10−5 cm−1 or lower at l.06 μm, but no crystal with a coefficient lower than 10−4 cm−1 at 2.7 and 3.8 μm has been found. Possible reasons for these results are discussed.Keywords
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