Abstract

The saturation behavior of band-gap resonant optical nonlinearity is studied by degenerate four-wave mixing experiments at 10.6 μm in HgCdTe over a wide range of laser intensities. The reflectivity clips at a constant level when the laser intensity is increased above 100 W/cm², and the corresponding effective third-order nonlinear susceptibility drops as the inverse of the laser intensity. A theory based on the saturation of the interband absorption at the pump frequency resulting from state blocking is presented and agrees well with the experiment.

© 1983 Optical Society of America

Nonperturbative analysis of Zeeman-coherence effects on resonant phase conjugation

Govind P. Agrawal
Opt. Lett. 8(7) 359-361 (1983)

Theory of saturated line shapes in phase-conjugate emission by resonant degenerate four-wave mixing in Doppler-broadened three-level systems

Daniel Bloch and Martial Ducloy
J. Opt. Soc. Am. 73(5) 635-646 (1983)

Optical phase conjugation in Hg_{1 −}xCdxTe

M. A. Khan, P. W. Kruse, and J. F. Ready
Opt. Lett. 5(6) 261-263 (1980)

Nonlinear optics with a diode-laser light source

D. A. B. Miller, D. S. Chemla, P. W. Smith, A. C. Gossard, and W. Wiegmann
Opt. Lett. 8(9) 477-479 (1983)

Free-carrier-induced third-order optical nonlinearities in semiconductors

S. Y. Auyang and P. A. Wolff
J. Opt. Soc. Am. B 6(4) 595-605 (1989)