Photorefractivity at 1.5 μm in CdTe:V
- 27 August 1990
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 57 (9) , 846-848
- https://doi.org/10.1063/1.103409
Abstract
We have for the first time demonstrated two‐beam coupling energy transfer at a wavelength of 1.5 μm. Beam coupling gain coefficients of 0.6 cm−1 have been obtained in vanadium ‐doped CdTe with only 5 mW/cm2 incident intensity. These gain coefficients exceed typical gain coefficients in GaAs at 1.06 μm wavelength by 50%. In preliminary measurements using the moving grating technique, we have measured a gain coefficient of 2.4 cm−1. Through adjustment of the doping level, CdTe:V can be used as a sensitive photorefractive material through the 0.9–1.5 μm spectral range.Keywords
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