Mechanism transformation with wavelength of self-pumped phase conjugation in BaTiO(3):Ce.
We report what is to our knowledge the first observation of mechanism transformation with wavelength of self-pumped phase conjugation (SPPC) in BaTiO(3):Ce crystals in the near infrared. It was found that the SPPC mechanism changed from a backscattering and four-wave-mixing mechanism to a cat mechanism when the pump wavelength was varied from 706 to 770 nm. In addition, SPPC was obtained when the pump beam entered the crystal by the +c face, and a variation with wavelength of optical beam paths in the crystal was also observed.
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Y
Lian
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SX
Dou
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H
Gao
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Y
Zhu
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Wu
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C
Yang
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Ye