Ce:BaTiO3 Crystal

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Ce:BaTiO3 is a new crystal with excellent photorefractive properties and optical quality .The formation of self-pumped phase conjugate(SPPC) wave in this crystal is based on the backward stimulated photorefractive scattering in air without any external seed beam. Therefore, the reflectivity of SPPC is highly insensitive to the incident angle, the inclination and the pitch of crystal. It's easy to obtain SPPC wave.

Notes:

Maintain the storage temperature above 13°C(55°F) and below 120°C(248°F) to prevent the

phase transition.

One faces polished for self-pumped phase conjugating mirrors.

Two faces polished for two wave mixing.

Six faces polished for self-pumped phase conjugation.

Crystal Structure Tetragonal 4mm
Transparent Range 0.45-6.3um
Refractive Indices n o =2.4921, n e =2.4247 @515nm
n o =2.4160, n e =2.3630 @633nm
n o =2.3681, n e =2.3235 @775nm
Electro-Optic Coefficients r 13 =11.7pm/v, r 33 =112pm/v, r 42 =1920pm/v
Reflectivity of SPPC 50-70%, l =515nm
50-80%, l =633nm
>70%, l =670nm
Two wave mixing coupling constant 10-40cm -1
Absorption Loss(cm -1 ) 3.392@515nm
0.268@633nm
0.005@755nm

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