Second harmonic generation in GaP nanopillars is investigated by polarization measurements and light confinement analysis. Effective thickness of the nonlinear surface region is ~ 10nm and the corresponding nonlinear coefficient 20 times larger than in bulk.
© 2012 OSA
M. Swillo, R. Sanatinia, and S. Anand, "Surface Optical Nonlinearity in GaP Nanopillar Waveguides," in Advanced Photonics Congress, OSA Technical Digest (online) (Optical Society of America, 2012), paper NTh1A.3.
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