Title :
Nondegenerate diffraction on transient gratings in InSb
Author :
Zhang, Z. ; Hafele, H.G.
Author_Institution :
Phys. Inst. Univ. Wurzburg, Germany
fDate :
6/1/1993 12:00:00 AM
Abstract :
Nondegenerate diffraction in InSb has been investigated. In experiments, the grating is excited by two CO laser beams with the frequency ω1, and a third beam with a different frequency ω2 is used to detect the grating. The diffraction efficiency can be represented by the nonlinear susceptibility χ(3)(ω2, -ω2 , ω1), which can be obtained with the Bloch equation. The frequency dependence given by theory is in agreement with experiments, implying that the nonlinear index is caused by the saturation
Keywords :
III-V semiconductors; diffraction gratings; high-speed optical techniques; indium antimonide; laser beams; nonlinear optical susceptibility; Bloch equation; CO; CO laser beams; InSb; diffraction efficiency; diffraction gratings; frequency dependence; laser beam effects; nondegenerate light diffraction; nonlinear index; nonlinear susceptibility; optical saturation; transient gratings; Apertures; Diffraction gratings; Frequency; Laser beams; Laser excitation; Laser modes; Mirrors; Optical pulses; Probes; Signal detection;
Journal_Title :
Quantum Electronics, IEEE Journal of
