Reduction of the Susceptibility to Optically Induced Index Inhomogeneities in LiTaO3and LiNbO3
作者:
H. J. Levinstein,
A. A. Ballman,
R. T. Denton,
A. Ashkin,
J. M. Dziedzic,
期刊:
Journal of Applied Physics
(AIP Available online 1967)
卷期:
Volume 38,
issue 8
页码: 3101-3102
ISSN:0021-8979
年代: 1967
DOI:10.1063/1.1710070
出版商: AIP
数据来源: AIP
摘要:
It has been established that LiTaO3can be made resistant to laser‐induced inhomogeneities in the index of refraction at power levels as high as 500 W/cm2. This is accomplished by annealing LiTaO3in an electric field of 250 V/cm at a temperature of 700°C for ½ h and then cooling the crystal to room temperature with the field on at a rate of 100°C/h. The susceptibility to laser‐induced index changes in LiNbO3is reduced by this treatment but not to the same extent as in LiTaO3. A mechanism is proposed to explain the observed reduction in susceptibility to damage.
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