Design and modeling of chi (2) second harmonic amplification in circular photonic crystal

Alessandro Massaro; Vittorianna Tasco; Maria Teresa Todaro; Tiziana Stomeo; Roberto Cingolani; Massimo De Vittorio; Adriana Passaseo

doi:10.1117/12.820437

19 May 2009 Design and modeling of χ⁽²⁾ second harmonic amplification in circular photonic crystal

Alessandro Massaro, Vittorianna Tasco, Maria Teresa Todaro, Tiziana Stomeo, Roberto Cingolani, Massimo De Vittorio, Adriana Passaseo

Author Affiliations +

Proceedings Volume 7354, Nonlinear Optics and Applications III; 73540J (2009) https://doi.org/10.1117/12.820437
Event: SPIE Optics + Optoelectronics, 2009, Prague, Czech Republic

Abstract

We analyze in this work the second harmonic amplification of χ⁽²⁾ nonlinear process in membrane type GaAs circular photonic crystal. This unconventional kind of photonic crystal is well suited for the generation of whispering gallery modes due to the circular symmetric periodic pattern. The Gaussian beam of a fundamental pump signal at 1.55 μm defines a whispering gallery mode resonance and generates a second harmonic mode at 0.775 μm in the central missing hole micro-cavity. The periodic pattern and the micro-cavity are tailored and optimized in order to generate a second harmonic conversion efficiency of 50 %. We predict the resonances by an accurate 2D time domain model including χ⁽²⁾ nonlinearity and also by a 3D Finite Element Method FEM. Moreover, by using a 3D membrane configuration, we predict a quality factor of the second harmonic mode of the order of 35000.

Citation Download Citation

Alessandro Massaro, Vittorianna Tasco, Maria Teresa Todaro, Tiziana Stomeo, Roberto Cingolani, Massimo De Vittorio, and Adriana Passaseo "Design and modeling of χ⁽²⁾ second harmonic amplification in circular photonic crystal", Proc. SPIE 7354, Nonlinear Optics and Applications III, 73540J (19 May 2009); https://doi.org/10.1117/12.820437

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