Document Type

Conference Proceeding

Publisher

IEEE

Faculty

Computing, Health and Science

School

Electron Science Research Institute (ESRI)

RAS ID

10300

Comments

This article was originally published as: Das, N. K., Karar, A. , Vasiliev, M. , Tan, C., Alameh, K. , & Lee, Y. T. (2010). Groove Shape-Dependent Absorption Enhancement of 850 nm MSM Photodetectors with Nano-Gratings. Proceedings of IEEE Conference on Nanotechnology IEEE-NANO. (pp. 289-293). . Seoul, Korea. IEEE. doi:10.1109/NANO.2010.5697754. Original article available here

© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Abstract

Finite difference time-domain (FDTD) analysis is used to investigate the light absorption enhancement factor dependence on the groove shape of the nano-gratings etched into the surfaces of metal-semiconductor-metal photodetector (MSM-PD) structures. By patterning the MSM-PDs with optimized nano-gratings a significant improvement in light absorption near the design wavelength is achieved through plasmon-assisted electric field concentration effects. Simulation results show about 50 times light absorption enhancement for 850 nm light due to improved optical signal propagation through the nano-gratings.

DOI

10.1109/NANO.2010.5697754

Access Rights

free_to_read

Included in

Engineering Commons

 
COinS
 

Link to publisher version (DOI)

10.1109/NANO.2010.5697754