We report the wavelength dependences of the two- and three-photon absorption coefficients and nonlinear refractive indices of undoped GaAs in the spectral range 1.3-3.5 µm. We have used 100-fs-long optical pulses and the Z-scan method.
© 2006 Optical Society of America
W. C. Hurlbut, K. L. Vodopyanov, P. S. Kuo, M. M. Fejer, and Y. Lee, "Multi-Photon Absorption and Nonlinear Refraction of GaAs in the Mid-Infrared," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper QThM3.
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