Abstract

The two-photon absorption coefficient β of InSb was carefully determined at 9.6 and 10.6 μm, using simultaneous self-induced refraction and transmission measurements of 45-psec CO₂ laser pulses. It was found that the frequency dependence of β was quite different from a previous measurement using nanosecond laser pulses [ A. M. Johnston, C. R. Pidgeon, and J. Dempsey, Phys. Rev. B 22, 825 ( 1980)]. The discrepancy is believed to be due to the uncertainty in the recombination and diffusion rates for the nanosecond experiments. The new results reported here are consistent with the theory of tunneling-assisted ionization in a narrow-band-gap semiconductor.

© 1987 Optical Society of America

Two-photon and three-photon absorption coefficients of InSb

M. Sheik-bahaei, P. Mukherjee, and H. S. Kwok
J. Opt. Soc. Am. B 3(3) 379-385 (1986)

Large nonlinear refraction in InSb at 10 μm and the effects of Auger recombination

V. Dubikovskiy, D. J. Hagan, and E. W. Van Stryland
J. Opt. Soc. Am. B 25(2) 223-235 (2008)

Scaling of four-photon absorption in InAs

M. P. Hasselbeck, E. W. Van Stryland, and M. Sheik-Bahae
J. Opt. Soc. Am. B 14(7) 1616-1624 (1997)

High-intensity CO₂ laser interactions with indium antimonide

M. Sheik-bahaei, M. P. Hasselbeck, and H. S. Kwok
J. Opt. Soc. Am. B 3(8) 1082-1091 (1986)

Review of multiphoton absorption in crystalline solids

Vaidya Nathan, A. H. Guenther, and S. S. Mitra
J. Opt. Soc. Am. B 2(2) 294-316 (1985)