Optimal subwavelength design for efficient light trapping in central slit of plasmonics-based metal-semiconductor-metal photodetector

Article

Masouleh, Farzaneh Fadakar, Das, Narottam and Rozati, Seyed Mohammad. 2015. "Optimal subwavelength design for efficient light trapping in central slit of plasmonics-based metal-semiconductor-metal photodetector." Optical and Quantum Electronics. 47 (6), pp. 1477-1485. https://doi.org/10.1007/s11082-015-0126-1
Article Title

Optimal subwavelength design for efficient light trapping
in central slit of plasmonics-based metal-semiconductor-metal photodetector

ERA Journal ID1267
Article CategoryArticle
AuthorsMasouleh, Farzaneh Fadakar (Author), Das, Narottam (Author) and Rozati, Seyed Mohammad (Author)
Journal TitleOptical and Quantum Electronics
Journal Citation47 (6), pp. 1477-1485
Number of Pages9
Year2015
Place of PublicationUnited States
ISSN0030-4077
0306-8919
1572-817X
Digital Object Identifier (DOI)https://doi.org/10.1007/s11082-015-0126-1
Web Address (URL)http://link.springer.com/article/10.1007%2Fs11082-015-0126-1#page-1
Abstract

We present the analysis of a novel plasmonics-based metal-semiconductor-metal photodetector that dramatically modifies the light transmission spectra when the subwavelength central slit is partly covered with a gold (Au) thin film. The simulation results reveal surface plasmons together with the optimized nano-gratings impact in this special design for quality light absorption inside the device active region. Finite-difference time domain method has been utilized to simulate the behavior of the proposed novel photodetector structure with significant improved light absorption capacity.

KeywordsFDTD simulation; plasmonics-based MSM-PDs; subwavelength slit; surface plasmon polariton
ANZSRC Field of Research 2020400899. Electrical engineering not elsewhere classified
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Byline AffiliationsUniversity of Guilan, Iran
School of Mechanical and Electrical Engineering
Institution of OriginUniversity of Southern Queensland
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