Ways of increasing the efficiency of optical harmonics generation in porous silicon and gallium phosphide nanostructures formed via electrochemical etching of crystalline semiconductors are studied. Among the ways of increasing the efficiency of nonlinear-optical interactions are phase matching in anisotropically nanostructured semiconductors, fabricating one-dimensional photon crystals, and increasing the local field strength, including the case of light scattering in macroporous semiconductors.
Department of General Physics and Molecular Electronics, Department of General Physics and Wave Processes, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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