Impact of Nanograting Phase-Shift on Light Absorption Enhancement in Plasmonics-Based Metal-Semiconductor-Metal Photodetectors

Figure 7

Light absorption enhancement factor spectra for MSM-PDs with plasmon-assisted operation for various grating phase shifts. Here, the nanograting phase shift is varied from 0° to 90°. The sub-wavelength aperture width was kept constant at 100 nm and the groove shape was rectangular.