Metasurface device for generating color selective 3D polarization structures. (IMAGE)
Caption
a, The knot 1, 2, and 3 are predesigned polarization structures in the same observation region for the wavelengths of 650, 575, and 500 nm, respectively. The polarization directions of points on the 3D knots are denoted with the yellow arrows. Both polarization and color information (wavelength) of these three knots are encoded into a single metasurface consisting of gold nanorods. b, Color selective mechanism. The locations of three different 3D knots are given upon the illumination of the incident light at 650 nm (top), 575 nm (middle), and 500 nm (bottom), respectively. The observation region is defined by the two planes: z = 485 μm and z = 515 μm. c, The intensity distributions at an observation plane without (top) and with an analyzer (bottom). The white and red double arrows denote the transmission axes of the polarizer and the analyzer.
Credit
by Yuttana Intaravanne, Ruoxing Wang, Hammad Ahmed, Yang Ming, Yaqin Zheng, Zhang-Kai Zhou, Zhancheng Li, Shuqi Chen, Shuang Zhang, and Xianzhong Chen
Usage Restrictions
Credit must be given to the creator.
License
CC BY