Second- and third-harmonic generation in birefringent photonic crystals and microcavities based on anisotropic porous silicon

I. V. Soboleva, E. M. Murchikova, A. A. Fedyanin, O. A. Aktsipetrov
2005 Applied Physics Letters  
One-dimensional anisotropic photonic crystals and microcavities based on birefringent porous silicon are fabricated. The reflectance spectra demonstrate the presence of photonic band gap and microcavity modes with spectral positions tunable upon the sample azimuthal rotation around its normal and/or rotation of polarization plane of incident light. Simultaneous enhancement of secondand third-harmonic generation at the photonic band-gap edge due to the phase matching is observed. The angular
more » ... ed. The angular positions of the second-and third-harmonic peaks are controllable via the anisotropy of the refractive indices of porous silicon layers.
doi:10.1063/1.2133910 fatcat:rlmsdii5prhsvha7arsnm3mfvi