Wideband antireflective polarizers based on integrated diffractive multilayer microstructures.
Microstructures of composite materials can exhibit properties significantly different from their individual constitution. By utilizing these unique characteristics, we design diffractive optical elements to demonstrate transmission-only polarizers for telecommunications. The transmittance and the extinction ratio of the proposed structure are >95% and >40 dB at 1470-1910 nm wavelengths, respectively. The average reflectance for random polarization is less than 1% at 1350-1580 nm. The methods are applicable to diffractive optics, e.g., in the ultraviolet and visible spectrum.
Deng
Xuegong
X
NanoOpto Corporation, Somerset, New Jersey 08873, USA. ddeng@nanoopto.com
Wang
Jian J
JJ
Liu
Feng
F