Comparative study of Plasmonics based Metal-Semiconductor-Metal Photodetector

For the fabrication of high speed devices at nano scale, plasmonics plays a wide role in photonic devices. This paper presents review of plasmonics based metal semiconductor-metal (MSM) photo-detector structure with different groove shapes. It presents the analysis of Light absorption enhancement factor (LAEF) for various plasmonics based metal-semiconductor-metal photodetector structure for material gold over varying parameters like subwavelength aperture width, nano-grating height and groove shapes etc. As from the study, maximum LAEF has been achieved with rectangular nano-gratings.