Theoretical investigation of plasmonic Ge/SiGe multiple quantum well structures toward compact and low-energy optical modulation

Saranisorn Srikam; Papichaya Chaisakul

doi:10.1117/12.2644020

4 January 2023 Theoretical investigation of plasmonic Ge/SiGe multiple quantum well structures toward compact and low-energy optical modulation

Saranisorn Srikam, Papichaya Chaisakul

Author Affiliations +

Proceedings Volume 12322, Nanophotonics, Micro/Nano Optics, and Plasmonics VIII; 123220Y (2023) https://doi.org/10.1117/12.2644020
Event: SPIE/COS Photonics Asia, 2022, Online Only

Conference Poster

Abstract

Electro-refractive optical modulator is an optical device using the refraction principle of the light, which is related directly to the refractive index of a material, to modulate an optical signal via an applied external electric field. For multiple quantum well (MQW) materials, taking the advantage of the quantum-confined Stark effect (QSQE) to investigate the change in the absorption coefficients and refractive index, we calculated the refractive index for Ge/SiGe MQW and investigated optical characteristics of the electro-refractive modulation using Ge/SiGe MQW by FDTD and MODE Ansys lumerical simulation. We have found that the use of MQW materials might potentially contribute to an efficient electro-refractive modulation.

Conference Presentation

Citation Download Citation

Saranisorn Srikam and Papichaya Chaisakul "Theoretical investigation of plasmonic Ge/SiGe multiple quantum well structures toward compact and low-energy optical modulation", Proc. SPIE 12322, Nanophotonics, Micro/Nano Optics, and Plasmonics VIII, 123220Y (4 January 2023); https://doi.org/10.1117/12.2644020

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