介电谐振器天线耦合红外锑化物光电探测器

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting Pub Date : 2020-07-05 DOI:10.1109/IEEECONF35879.2020.9329773

J. Budhu, A. Grbic, N. Pfiester, C. Ball, K. Choi, S. Krishna

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引用次数: 2

摘要

介绍了一种介电谐振器天线耦合红外锑化物光电探测器(DRACAD)。DRA的大捕获面积为亚波长维度探测器提供入射辐射。探测器尺寸的减小降低了噪声等效功率(NEP)。DRA的大捕获面积增加了捕获的信号。这种组合导致高信噪比(SNR)。drad的设计采用遗传算法优化，以最小的探测器获得最大吸收红外辐射的尺寸。等离子体金属被建模为有效的损耗片阻抗。在$8-12 μ m$波长范围内的吸收光谱模拟表明，在考虑所有金属损耗后，DRACAD吸收了$9 μ m$的入射光的近73%。

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Dielectric Resonator Antenna Coupled Infrared Antimonide Photodetectors

A Dielectric Resonator Antenna Coupled Infrared Antimonide Photodetector (DRACAD) is presented. The large capture area of the DRA feeds incident radiation to the subwavelength dimension detector. The reduced dimension of the detector reduces the Noise Equivalent Power (NEP). The large capture area of the DRA increases the captured signal. The combination leads to high Signal-to-Noise Ratios (SNR). The DRACAD is designed using a Genetic Algorithm Optimization to obtain dimensions which maximize the absorbed infrared radiation with the smallest possible detector. The plasmonic metals are modeled as effective lossy sheet impedances. Absorption spectrum simulations between $8-12\mu m$ wavelengths show the DRACAD absorbs nearly 73% of the incident light at $9\mu m$ after all metal losses are accounted for.

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2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting

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