Title :
A Multilayer-Based High-Performance Multisubpart Profile Grating Reflector
Author :
Wu, Huaming ; Hou, Jin ; Mo, Wenqin ; Gao, Dingshan ; Zhou, Zhiping
Author_Institution :
Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
In this letter, a multilayer-based high-performance subwavelength multisubpart profile grating reflector (MPGR) is proposed and fabricated. The properties of the reflector are investigated by rigorous coupled-wave analysis for multilayered grating structures. It is shown that with the properly configured profile and strongly modulated grating layer in transverse-electric polarized wave, the MPGR experimentally demonstrates a broadband reflection spectrum from 1.56 to 1.8 ??m, very high reflectivity (>97%), and good angular insensitivity of about 27.8??.
Keywords :
coupled mode analysis; diffraction gratings; infrared spectra; integrated optics; light polarisation; mirrors; optical design techniques; optical fabrication; optical modulation; optical multilayers; reflectivity; angular insensitivity; broadband reflection spectrum; high-performance multisubpart profile grating reflector; multilayer-based profile grating reflector; multilayered grating structures; optical fabrication; reflectivity; rigorous coupled-wave analysis; strongly modulated grating layer; structure design; transverse-electric polarized wave; wavelength 1.56 mum to 1.8 mum; Diffraction and grating; guided-mode resonance (GMR); reflector;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2037240
