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High-Performance Enhancement of a GaAs Photodetector Using a Plasmonic Grating
Plasmonics ( IF 3.3 ) Pub Date : 2020-04-08 , DOI: 10.1007/s11468-020-01142-6
Bedir Yousif , Mohy Eldin A. Abo-Elsoud , Hagar Marouf

In this study, we present and establish a gold surface plasmon polariton (SPP) GaAs photodetector that achieves high internal quantum efficiency (IQE). At a wavelength of 600 nm, the IQE with the SPP was 85%, while the IQE without the SPP was 42%, an enhancement of 43%. Also, at a wavelength of 675 nm, the IQE with SPP was 82%, whereas the IQE without SPP was 45%, which constitutes an increase of 37%. Such excellent performance is ascribed to the subwavelength scope of the optical power in the photoconductive-based gold SPP GaAs that provides high IQE. Moreover, the recombination of the SPP in the photodetector provides greater photocurrent and responsivity.

中文翻译:

使用等离子光栅的GaAs光电探测器的高性能增强

在这项研究中,我们提出并建立了一种可实现高内部量子效率(IQE)的金表面等离子体激元(SPP)GaAs光电探测器。在600 nm波长处,使用SPP的IQE为85%,而不使用SPP的IQE为42%,提高了43%。此外,在675 nm的波长下,带有SPP的IQE为82%,而没有SPP的IQE为45%,增加了37%。这种优异的性能归因于提供高IQE的基于光电导的金SPP GaAs中光功率的亚波长范围。此外,SPP在光电探测器中的重组可提供更大的光电流和响应度。
更新日期:2020-04-08
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