Nonlinear absorption and refraction coefficients of nanoporous silicon are reported and found to be enhanced compared to those of crystalline silicon. A pump-probe measurement showing the temporal character of the nonlinearity is also presented.
© 2012 OSA
R. J. Suess and T. E. Murphy, "Third-Order Optical Nonlinearity in Bulk Nanoporous Silicon at Telecom Wavelengths," in Conference on Lasers and Electro-Optics 2012, OSA Technical Digest (online) (Optical Society of America, 2012), paper JW4A.43.
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