Title
Groove Shape-Dependent Absorption Enhancement of 850 nm MSM Photodetectors with Nano-Gratings.
Document Type
Conference Proceeding
Publisher
IEEE
Faculty
Computing, Health and Science
School
Electron Science Research Institute (ESRI)
RAS ID
10300
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.
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. Original article available here