Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
59 (1991), S. 756-758
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Measurements of the nondegenerate four-wave mixing of CO2 laser beams in a Bi1−xSbx film have yielded the largest high-power third-order nonlinear susceptibilities ever reported at that wavelength (χ(3)(approximately-greater-than)6×10−4 esu at P0(approximately-greater-than)2×105 W/cm2). Furthermore, an étalon effect resulting from the high reflectivity of the Bi1−xSbx films at both the air and substrate interfaces leads to an additional enhancement of the four-wave signal by as much as a factor of 30. A theoretical model based on optical modulation of the free-carrier susceptibility gives results which are in excellent agreement with the data.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.105333
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