title: Self-imaging in periodic dielectric waveguides.
abstract: Self-imaging phenomena in periodic dielectric waveguides has been predicted and investigated based on multimode interference effect by using the plane wave expansion method and the finite-difference timedomain method. Asymmetric and symmetric interferences were discussed and respective imaging positions were calculated. As examples of application, a demultiplexer and a filter with ultracompact and simple structures were designed and demonstrated theoretically for optical communication wavelengths.
authors.affiliation: State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou, China.
authors.forename: Shunquan
authors.initials: S
authors.lastname: Zeng
authors.forename: Yao
authors.initials: Y
authors.lastname: Zhang
authors.forename: Baojun
authors.initials: B
authors.lastname: Li
mesh_terms: D000669:Amplifiers, Electronic; D003198:Computer Simulation; D003952:Diagnostic Imaging / Q000379:methods; D004867:Equipment Design; D006801:Humans; D008962:Models, Theoretical; D055096:Optical Devices; D055100:Optical Fibers; D055095:Optics and Photonics / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D055672:Static Electricity