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首页> 外文期刊>Optical and quantum electronics >Investigation and optimization of light trapping through hexagonal-shaped nanopillar (NP) array of indium gallium arsenide material based photodetector
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Investigation and optimization of light trapping through hexagonal-shaped nanopillar (NP) array of indium gallium arsenide material based photodetector

机译：通过六边形纳米粒子（NP）基于砷化镓材料的光捕获的光捕获的研究和优化

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摘要

Nanopillar arrays over the photodetector's surface attribute an enhanced coupling efficiency of incident light due to its various light trapping mechanisms that contribute towards high-resolution optical detection. This paper reports the analytical investigation of the performance of Indium Gallium Arsenide material based hexagonal-shaped nanopillar (NP) array deployed over the 5 um × 5 um detector's front surface for high photodetection infrared applications. The proposed structure exhibits an optimum 98% overall absorption of the incoming light. High EQE of about 75% and responsivity of 0.93 AAV has been obtained at 1.55 um operating wavelength with a minimum detector's depletion width of 0.7 um at 1 mw optical input power.
机译：由于其各种光捕获机制，在光电探测器的表面上占据了入射光的增强耦合效率，这是其各种光捕获机构，这有助于高分辨率光学检测。本文报道了分析研究基于铟砷化镓基质的六边形纳米玻璃（NP）阵列的分析调查，用于在5μm×5um检测器的前表面上部署用于高光电检测红外应用。所提出的结构表现出输入光的最佳98％的整体吸收。在1.55μm工作波长的1.55μm工作波长下获得了大约75％和0.93AAV的响应度，最小探测器的耗尽宽度为0.7μm，在1 MW光学输入功率下。

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