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

journal contribution
posted on 21.07.2021, 00:47 authored by Farzaneh F Masouleh, Narottam DasNarottam Das, Seyed M Rozati
© 2015, Springer Science+Business Media New York. We present the analysis of a novel plasmonics-based metal-semiconductor-metal photodetector that dramatically modifies the light transmission spectra when the sub-wavelength 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.

History

Volume

47

Issue

6

Start Page

1477

End Page

1485

Number of Pages

9

eISSN

1572-817X

ISSN

0306-8919

Publisher

Springer

Language

en

Peer Reviewed

Yes

Open Access

No

Acceptance Date

20/01/2015

External Author Affiliations

University of Guilan, Iran

Era Eligible

Yes

Journal

Optical and Quantum Electronics