Design and fabrication of birefringent nano-grating structure for circularly polarized light emission.
Three different nano-grating structures are designed as phase retarders that can transform linearly polarized light to circularly polarized emission for the wavelengths of 488 nm, 532 nm and 632.8 nm, respectively. Gold based nano-grating structures with various periods are fabricated by utilizing laser interference lithography. The ellipticity of all circularly polarized emission can reach around 90% such that the structure has great potential in the applications of three-dimensional (3D) display. The effects of the slit width and metal thickness modulations are simulated by rigorous coupled wave analysis (RCWA) method. Besides, the field intensity and phase of the transmitted TM and TE waves are also simulated to understand their polarization characteristics.
Ming-Yi
MY
Lin
Tsung-Han
TH
Tsai
Yu Ling
YL
Kang
Yu-Cheng
YC
Chen
Yi-Hsiang
YH
Huang
Yi-Jiun
YJ
Chen
Xiang
X
Fang
Hoang Yan
HY
Lin
Wing-Kit
WK
Choi
Lon A
LA
Wang
Chung-Chih
CC
Wu
Si-Chen
SC
Lee