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  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1988),
  • paper TUX4

Picosecond degenerate four-wave mixing studies in ZnSe

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Abstract

Degenerate four-wave mixing has been used by a number of workers1,2 to measure photocarrier diffusivities and recombination times. Typically, nanosecond excitation pulses have been used making determination of grating decay times difficult,2 We have chosen to apply the technique using 30-ps FWHM pulses of 532-nm light output from a frequency-doubled Q-switched and mode- locked Nd:YAG laser. By introducing 700-ps delay stages in each of the three inputs (forward pump, Ef backward pump, Eb' and probe, Ep) the decay times of the various grating interactions can be determined.

© 1988 Optical Society of America

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