Optical polarizer

摘要

An optical polarizer includes a supporting element and an optical polarizing film supported by the supporting element. The optical polarizing film includes a carbon nanotube film structure and a metallic layer disposed on the carbon nanotube film structure.

主权项

1. An optical polarizer, comprising:
a supporting element; and an optical polarizing film supported by the supporting element, the optical polarizing film comprising a carbon nanotube film structure and a metallic layer disposed on the carbon nanotube film structure, wherein the carbon nanotube film structure consists of a plurality of carbon nanotubes, the plurality of carbon nanotubes are joined end-to-end by van der Waals attractive force therebetween and substantially aligned in a single direction, and the metallic layer is located on entire outer surfaces of the plurality of carbon nanotubes; the metallic layer further comprises an amelioration layer, the amelioration layer is a gold layer having a thickness ranged from about 2 nanometers to about 20 nanometers, and a polarization degree of the optical polarizer in a wavelength region ranged from about 400 nanometers to about 2000 nanometers is greater than 0.20.