TY - JOUR AB - The PT-symmetric optical grating with index profile e2ibz has been shown to have the interestingproperty of being essentially invisible for light incident from one side, while possessing greatlyenhanced reflection at a particular wavelength for light incident from the other side. We extend aprevious analysis of this grating to obtain an analytic solution for the case when the grating isembedded on a substrate, with different refractive indices on either side. We also generalize theprevious case of normal incidence to incidence at an arbitrary angle. In that case the enhancedreflection occurs at a particular angle of incidence for a given wavelength. Finally we discusshow the grating may be used to give lasing. AU - Jones,HF AU - Kulishov,M DO - 5/055101 PY - 2016/// SN - 2040-8986 TI - Extension of analytic results for a PT-symmetric structure T2 - Journal of Optics UR - http://dx.doi.org/10.1088/2040-8978/18/5/055101 UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000375754000027&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202 UR - http://hdl.handle.net/10044/1/42218 VL - 18 ER -