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high-performance enhancement of a gaas photodetector using a plasmonic grating
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نویسنده
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yousif bedir ,abo-elsoud mohy eldin a. ,marouf hagar
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منبع
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plasmonics - 2020 - دوره : 15 - شماره : 5 - صفحه:1377 -1387
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چکیده
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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.
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کلیدواژه
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plasmonic photodetectors ,surface plasmon polaritons ,light trapping ,gaas photodetector ,plasmonic grating
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آدرس
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kafrelsheikh university, faculty of engineering, electrical engineering department, egypt, mansoura university, faculty of engineering, electronics and communications department, egypt, delta academy, delta high institute for engineering and technology, electronics and communications department, egypt
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Authors
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