Near-infrared demonstration of computer-generated holograms implemented by using subwavelength gratings with space-variant orientation.
We provide an experimental demonstration of novel form-birefringent computer-generated holograms at wavelengths of 1.55 and 10.6 microm. These novel devices utilize a 2-D array of cells that can be fabricated with a single lithographic step. Each cell contains a subwavelength binary grating whose orientation controls the desired continuous phase profile within the cell.
Levy
Uriel
U
Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0407, USA. ulevy@ece.ucsd.edu
Kim
Hyo-Chang
HC
Tsai
Chia-Ho
CH
Fainman
Yeshaiahu
Y