Title :
Laminated Polarizer With an Antireflection Structure Based on a Subwavelength Grating
Author :
Wakabayashi, Yuu ; Yamauchi, Junji ; Nakano, Hisamatsu
Author_Institution :
Fac. of Sci. & Eng., Hosei Univ., Koganei, Japan
Abstract :
A laminated polarizer is analyzed using the finite-difference time-domain method. An antireflection structure based on a subwavelength grating is introduced to achieve high transmission for the transverse-magnetic wave. As a result, a transmissivity of more than 99% is obtained over a wide wavelength range of 1.0-2.0 μm with almost no transmission for the transverse-electric wave.
Keywords :
diffraction gratings; finite difference time-domain analysis; light transmission; optical polarisers; antireflection structure; finite-difference time-domain method; laminated polarizer; subwavelength grating; transmission; transverse-electric wave; transverse-magnetic wave; wavelength 1.0 mum to 2.0 mum; Coatings; Finite difference methods; Gratings; Indexes; Refractive index; Time-domain analysis; Laminated polarizer (Lamipol); anti-reflection structure; finite-difference time-domain (FDTD) method; periodic structure; subwavelength grating;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2327756
