砷化镓
光电二极管
光学
光电子学
光子
材料科学
光伏系统
波长
半导体
波导管
吸收(声学)
物理
生态学
生物
作者
Jichi Ma,Jeff Chiles,Yashika Sharma,S. Krishna,Sasan Fathpour
出处
期刊:Optics Letters
[The Optical Society]
日期:2014-09-04
卷期号:39 (18): 5297-5297
被引量:11
摘要
The two-photon photovoltaic effect is demonstrated in gallium arsenide at 976 and 1550 nm wavelengths. A waveguide-photodiode biased in its fourth quadrant harvests electrical power from the optical energy lost to two-photon absorption. The experimental results are in good agreement with simulations based on nonlinear wave propagation in waveguides and the drift-diffusion model of carrier transport in semiconductors. Power efficiency of up to 8% is theoretically predicted in optimized devices.
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