The convolution theorem for nonlinear optics

Details The convolution theorem for nonlinear optics The convolution theorem for nonlinear optics

2007-03-06

arxiv.org/abs/physics/0703065v2

Appl. Phys. Lett. 91, 111114 (2007)

Physics

Optics

8 pages, 2 figures (6 sub fugures)

Scientific paper

10.1063/1.2780082

We have expressed the nonlinear optical absorption of a semiconductor in terms of its linear spectrum. We determined that the two-photon absorption coefficient in a strong DC-electric field of a direct gap semiconductor can be expressed as the product of a differential operator times the convolution integral of the linear absorption without a DC-electric field and an Airy function. We have applied this formalism to calculate the two-photon absorption coefficient and nonlinear refraction for GaAs and ZnSe using their linear absorption and have found excellent agreement with available experimental data.

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