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+ PACS 040.0040 050.005
Analysis of Plasmonic-Based MSM Photodetector with Optimized
Parameters
Fadakar Masouleh, Farzaneh
1
; Mashayekhi, Hamidreza
1
; Das, Narottam
2
1
Physics Group, University of Guilan, Rasht, Iran
Department of Electrical and Computer Engineering, Curtin University, Perth, WA 6845,
Australia
2
E-mail: fafadakar@msc.guilan.ac.ir, mashhr@guilan.ac.ir, narottam.das@curtin.edu.au
Abstract- Finite differenc time-domain (FDTD) method is used to simulate the light absorption in a novel
plasmonic-based photodetector with nano-gratings. Slit width is one of the effective parameters for the
light absorption enhancement in metal-semioconductor-metal photodetectors. FDTD simulation results
show ~13.5-times light absorption enhancement according to the changes in duty cycle and number of
nano-gratings on each side of the slit.
Keywords: FDTD simulation, Light absorption, Nano-structured MSM-PDs, Surface plasmon polariton.
PACS No: 040.0040, 050.0050
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S(& L’: fafadakar@msc.guilan.ac.ir, mashhr@guilan.ac.ir, narottam.das@curtin.edu.au