Surface plasmon enhanced InGaAs/InP APD based on mass-produced epitaxial materials

Qingmin Chen; Xiumin Xie; Heping Xie; Wenzhi Qin; Ruomei Jiang; Pigang Liang; Yuxin Shu; Qian Xie; Qian Dai; Hai-Zhi Song

doi:10.1117/12.2686986

6 August 2023 Surface plasmon enhanced InGaAs/InP APD based on mass-produced epitaxial materials

Qingmin Chen, Xiumin Xie, Heping Xie, Wenzhi Qin, Ruomei Jiang, Pigang Liang, Yuxin Shu, Qian Xie, Qian Dai, Hai-Zhi Song

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Proceedings Volume 12781, International Conference on Optoelectronic Information and Functional Materials (OIFM 2023); 127813V (2023) https://doi.org/10.1117/12.2686986
Event: 2023 International Conference on Optoelectronic Information and Functional Materials (OIFM 2023), 2023, Guangzhou, JS, China

Abstract

The near-infrared InGaAs/InP avalanche photodiode (APD) is a key device in the field of communication, lidar, resource exploration, etc, but it often suffers from the low absorption coefficient around 1550 nm. Thermal carriers excited by surface plasmons (SPs) have extensive development prospects in photoelectric detection and application because of its unique optical properties. Using the properties of SPs to enhance light absorption, it is applicable to improve the performance of traditional InGaAs/InP APD in the form of metallic two-dimension hole arrays on the detector. In this paper, finite-difference time-domain (FDTD) method was used to simulate the SP enhancement effects on APD. The control variable method was used to study the influence of the parameter of metallic two-dimension hole arrays on transmission and light field distribution. The results indicate the high localization of the SPs and enhanced absorption at 1550 nm, supporting the development of photodetectors towards high sensitivity and high responsivity even using traditional devices.

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Qingmin Chen, Xiumin Xie, Heping Xie, Wenzhi Qin, Ruomei Jiang, Pigang Liang, Yuxin Shu, Qian Xie, Qian Dai, and Hai-Zhi Song "Surface plasmon enhanced InGaAs/InP APD based on mass-produced epitaxial materials", Proc. SPIE 12781, International Conference on Optoelectronic Information and Functional Materials (OIFM 2023), 127813V (6 August 2023); https://doi.org/10.1117/12.2686986

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KEYWORDS

Avalanche photodetectors

Surface plasmons

Incident light

Transmittance

Light absorption

Photodetectors

Gold

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