Nonlinear Optical Phenomena in Solids
Abstract
The dynamics of electron gratings formed in Hg(1 - x)Cd(x)Te at 80 K by the interference of pump and probe beams from a Carbon Dioxide TEA laser has been investigated. A CO2 TEA laser beam incident upon the backside of the sample quenches the forward mode phase conjugate signal from the pump and probe beams, with a response time no greater than 40 nsec. A model has been proposed based upon two-photon absorption and Auger recombination. A theoretical analysis of GaAs/Al(x)Ga(1 - x)As and Hg(1 - x)Cd(x)Te/Hg(y)Cd(1 - y)Te superlattices shows that the photo-excited plasma mechanism does not give rise to an appreciably larger third order susceptibility than bulk alloys. However, the third order susceptibility arising from conduction band nonparabolicity can be two orders of magnitude higher in the GaAs/Al(x)Ga(1 - x)As superlattices than in the bulk alloy. There is no increase in the third order susceptibility due to conduction band nonparabolicity in Hg(1 - x)Cd(x)Te/Hg(y)Cd(1 - y)Te superlattices compared with the bulk alloy. Keywords: Mercury cadmium tellurides, Gallium aluminum arsenide, Real time electron gratings, Dependence of diffracted beam signal upon erase beam intensity, Gallium arsenides.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 25, 1985
- Accession Number
- ADA216785
Entities
People
- Paul W. Kruse
Organizations
- Honeywell International, Inc.