Abstract
We report the first measurement of the photo-galvanic circular current antisymmetric tensor component in BaTiO3: Co. The measurement gives a value of this coefficient, for extraordinary beam amplification, of 4×10−9 A/W using a nonstationary measurement technique at a wavelength of 0.632 μm.
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The BaTiO3 crystal was grown at Hughes Research Laboratory. It was a poled, single domain, ferroelectric crystal. The data reported here was taken at 21°C, well below T c
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Professor N. Kukhtarev is on leave from the Institute of Physics in the Ukraine and is supported by the NSF
Dr. G. Dovgalenko is on leave from the IRPA “Rotor-Control” research laboratory of the Ukraine and is supported by the University of Arkansas
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Kukhtarev, N., Dovgalenko, G., Shultz, J. et al. Manifestation of circular photogalvanic current by dynamic holography in BaTiO3 . Appl. Phys. A 56, 303–305 (1993). https://doi.org/10.1007/BF00324346
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DOI: https://doi.org/10.1007/BF00324346