Light polarizer in visible and THz range based on single-wall carbon nanotubes embedded into poly(methyl methacrylate) film

Abstract

Poly(methyl metacrylate) samples with uniformly dispersed single-wall carbon nanotubes (SWCNTs) were mechanicaly stretched up to 4 times at 150 °C. As a result, SWCNTs were oriented preferentially along the stretch direction. The width of the angular distribution of the SWCNT orientation determined by polarized Raman scattering and THz absorption spectroscopy was 15 and 12°, respectively. Both methods revealed a high anisotropy of optical response of the composite film. Its application as an efficient polarizer in a wide spectral range from visible to THz is promising.