title: Generalized phase matching condition for lossy periodic photonic structures.
abstract: The phase matching condition relating the real transverse wave vectors across a periodic boundary has been generalized to the case of complex transverse wave vectors. Based on this generalization, we describe diffraction of a complex Bloch wave propagating within a composite prism, and show that the resulting light in free space is an inhomogeneous plane wave in the presence of losses within the prism.
authors.affiliation: Department of Physics and Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI 48109-1040, USA.
authors.forename: Xuhuai
authors.initials: X
authors.lastname: Zhang
authors.forename: Stephen R
authors.initials: SR
authors.lastname: Forrest
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008420:Manufactured Materials; D008962:Models, Theoretical; D017785:Photons; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods*; D012542:Scattering, Radiation