title: Multireflection modal method for wideband fused-silica transmission gratings.
abstract: A multireflection modal method is proposed to give a clear physical picture for explanation of the diffraction process that takes place in a wideband fused-silica transmission grating. Using rigorous coupled-wave analysis, the optimized grating exhibits diffraction efficiency greater than 93.9% for TE polarization over a bandwidth of 126 nm (from 735 to 861 nm). The designed wideband fused-silica transmission grating is fabricated using holographic interference recording and inductively coupled plasma etching technology. Experimental results are in agreement with the theoretical values.
authors.affiliation: Laboratory of Information Optics and Optoelectronic Technology, Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, Shanghai, China.
authors.forename: Wenting
authors.initials: W
authors.lastname: Sun
authors.forename: Peng
authors.initials: P
authors.lastname: Lv
authors.forename: Changhe
authors.initials: C
authors.lastname: Zhou
authors.forename: Hongchao
authors.initials: H
authors.lastname: Cao
authors.forename: Jun
authors.initials: J
authors.lastname: Wu