论文信息 - Intrinsic absorptive optical bistability in CdS

Intrinsic absorptive optical bistability in CdS

An intrinsic absorptive optical bistability is observed in the transmission of high intensity, nanosecond laser pulses through thin CdS platelets at liquid helium temperature. The bistability is due to a renormalization of the band gap which is caused by the formation of an electron hole plasma and occurs in a broad spectral range below the excitonic resonances. The switching times are in the subnanosecond range. The dependence on photon energy is investigated and discussed.

[1] M. Röslee,et al. Phase diagram of electron‐hole liquids in polar semiconductors , 1977 .

[2] E. Hanamura. Optical bistable system responding in pico-second , 1981 .

[3] David A. B. Miller,et al. Optical bistability and signal amplification in a semiconductor crystal: applications of new low‐power nonlinear effects in InSb , 1979 .

[4] Hyatt M. Gibbs,et al. Optical bistability in semiconductors , 1979 .

[5] F. Henneberger,et al. Memory effect in the excitonic transmission of CdS , 1983 .

[6] K. Bohnert,et al. Nonequilibrium properties of electron-hole plasma in direct-gap semiconductors , 1981 .

[7] H. Haug,et al. Two-Photon Generation of Excitonic Molecules and Optical Bistability , 1981 .