Mechanism analyzation of the effects of grating parameters on polarization transmission of single-layer nanowire gratings

作者：Zhiwen, Wang^*; Jinliang, Gong; Aimei, Dong; Bo, Cui

来源：Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanomaterials, Nanoengineering and Nanosystems , 2018, 232(1): 41-47.

DOI：10.1177/2397791417744966

• Grating parameter
• Medium theory
• Metal grating
• Polarization properties
• Surface plasma
• Surface plasma resonances
• Transmission mechanisms
• Transverse magnetic

Using equivalent medium theory, surface plasma resonance theory and Fabry-Pérot resonance theory, transmission mechanism of single-layer nanowire polarizer is systematically analyzed. Concept of skin depth is used to explain the effect of grating material on polarization transmission. Two transmission minimum points in the curve of grating period versus transverse magnetic transmission are analyzed quantitatively. Effects of grating duty cycle, height and type on polarization transmission of single-layer nanowire polarizer are also analyzed. The requirements of designing single-layer sub-wavelength metal gratings with good polarization properties are given. The analysis of the transmission mechanism of sub-wavelength metal gratings will be helpful for the design and fabrication of the gratings with good polarization properties.

• 出版日期2018
• 单位山东大学