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Metal nano-grating optimization for higher responsivity plasmonic-based gaas metal-semiconductor-metal photodetector

Karar, Ayman; Tan, Chee Leong; Alameh, Kamal; Lee, Yong Tak; Karouta, Fouad


To improve the responsivity of the metal semiconductor metal photodetector (MSM-PD), we propose and demonstrate the use of sub-wavelength slits in conjunction with nano-structured the metal fingers that enhance the light transmission through plasmonic effects. A 4-finger plasmonics-based GaAs MSM-PD structure is optimized geometrically using a 2-D Finite Difference Domain (FDTD) method and developed, leading to more than 7-times enhancement in photocurrent in comparison with the conventional...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Journal of Lightwave Technology
DOI: 10.1109/JLT.2013.2243108


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