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

被引：0
作者：
Farzaneh Fadakar Masouleh
Narottam Das
Seyed Mohammad Rozati
机构：
[1] University of Guilan,Physics Group
[2] University of Southern Queensland,School of Mechanical and Electrical Engineering
[3] Curtin University,Department of Electrical and Computer Engineering
来源：
Optical and Quantum Electronics | 2015年 / 47卷
关键词：
FDTD simulation; Plasmonics-based MSM-PDs; Subwavelength slit; Surface plasmon polariton;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
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页码：1477 / 1485
页数：8
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