A high performance polarization independent reflector based on a multilayered configuration grating structure

This paper is devoted to the study of a polarization independent reflector made with a multilayered configuration grating structure with a multi-subpart profile. Rigorous coupled-wave analysis for multilayered grating structures is adopted to investigate the properties of the reflector. It is shown that over a broadband spectrum of 1.57-1.8 mu m, the reflector demonstrates high reflectivity (R > 99%) and a wide angular bandwidth (about 21.2 degrees) for both transverse electric (TE) and transverse magnetic (TM) polarized waves. Effects of deviation from the design parameters on the performance of the reflector are also presented, and a reasonable tolerance of fabrication error is exhibited in the proposed device.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000279943300019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701OpticsSCI(E)EI15ARTICLE4null1