D ual function grating element under total internal reflection and second Bragg angle mounting
BO WANG1,*
Affiliation
- School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China
Abstract
We
present dual function grating eleme nt under total internal reflection (TIR) and second Bragg angle mounting. There are
three diffracted orders which are different from most reported Littrow mounting or normal incidence. Grating profile
parameters are optimized in order to obtain high effici ency for TE polarization and good uniformity for TM polarization using
rigorous coupled wave analysis (RCWA). The fabrication tolerance is investigated, which should be useful guideline for
manufacture such a dual function grating element. The diffractive optical element has novelty of dual function grating, high
efficiency of TIR and new incidence mounting of second Bragg angle..
Keywords
Rigorous coupled-wave analysis, Total internal reflection, High efficiency, Beam splitter, Second Bragg angle.
Citation
BO WANG, D ual function grating element under total internal reflection and second Bragg angle mounting, Optoelectronics and Advanced Materials - Rapid Communications, 6, 3-4, March-April 2012, pp.366-369 (2012).
Submitted at: Dec. 20, 2011
Accepted at: April 11, 2012