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Thermal properties of a solid-state laser crystal LiNdP/sub 4/O/sub 12/

Journal Article · · J. Appl. Phys.; (United States)
DOI:https://doi.org/10.1063/1.329744· OSTI ID:6467514
The thermal expansion coefficient and the thermal coefficient of refactive index of a stoichiometric laser crystal LiNdP/sub 4/0/sub 12/ have been measured from room temperature to 250 /sup 0/C. The thermal coefficient of refractive index of the crystal is negative and its average value over three crystallographic axes is about -2 x 10/sup -6/ deg. The diffusivity and heat capacity of the crystal have been measured by laser flash method from room temperature to 300 /sup 0/C. Using this information, thermal conductivity of the crystal has been calculated. The largest thermal conductivity of the crystal was 3.3 x 10/sup -2/ J/cm s deg along crystallographic b axis. The temperature distribution observed in a 300-mm-thick crystal plate irradiated by Ar laser light is explained by the thermal conductivity obtained through these experiments.
Research Organization:
Musashino Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Musashino-Shi, Tokyo, 180 Japan
OSTI ID:
6467514
Journal Information:
J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 52:3; ISSN JAPIA
Country of Publication:
United States
Language:
English