Ross, G.W., Hribek, P., Eason, R.W., Garrett, M.H. and Rytz, D.
Impurity enhanced self-pumped phase conjugation in the near infrared in 'blue' BaTiO3
Optics Communications, 101, (1-2), . (doi:10.1016/0030-4018(93)90323-W).
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Photorefractive self-pumped phase-conjugation is examined at near-infrared wavelengths using doped 'blue' BaTiO3, and reflectivities are reported as high as 76% between 720 nm and 1004 nm due, as is believed, to a backward stimulated photorefractive scattering mechanism. Data also suggests that it is possible to stabilise the phase-conjugate reflectivity by vibrating the crystal.
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