Tunable third-harmonic generation using low-loss phase change chalcogenides

Muliang Zhu; Sajjad Abdollahramezani; Omid Hemmatyar; Ali Adibi

doi:10.1117/12.2590709

5 March 2021 Tunable third-harmonic generation using low-loss phase change chalcogenides

Muliang Zhu, Sajjad Abdollahramezani, Omid Hemmatyar, Ali Adibi

Proceedings Volume 11694, Photonic and Phononic Properties of Engineered Nanostructures XI; 116941V (2021) https://doi.org/10.1117/12.2590709
Event: SPIE OPTO, 2021, Online Only

Abstract

We demonstrate a new platform for reconfigurable third-order nonlinear photonic devices formed by silicon dioxide (SiO2)-Sb2S3(Sb2Se3)-SiO2 subwavelength Fabry-Perot cavities on a gold (Au) reflector, which exhibit giant third-harmonic generation (THG) modulations with enhanced efficiency. The use of the phase-change dichalcogenides (Sb2S3 or Sb2Se3) enables a wide tuning range of the THG response. The devices work at dispersion-engineered THG resonances at the crystalline phase (c-phase) of the PCC, which numerically exhibit c-phase THG flows a few 100 times more than those at the amorphous phase (a-phase) of the PCC at near-infrared excitation wavelengths.

Conference Presentation

Citation Download Citation

Muliang Zhu, Sajjad Abdollahramezani, Omid Hemmatyar, and Ali Adibi "Tunable third-harmonic generation using low-loss phase change chalcogenides", Proc. SPIE 11694, Photonic and Phononic Properties of Engineered Nanostructures XI, 116941V (5 March 2021); https://doi.org/10.1117/12.2590709

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