title: Transformation optical design of a bending waveguide by use of isotropic materials.
abstract: Based on the effective medium theory, we designed a simplified transformation media bending waveguide by use of only three kinds of isotropic material in an alternating layered structure. The design can be used to guide incoming waves smoothly along the bending part of a waveguide with slight distortions. Numerical simulations are performed to illustrate its functionality.
authors.affiliation: Surface Physics Laboratory, Department of Physics, Fudan University, Shanghai 200433, China. joliwoo@gmail.com
authors.forename: Xiaojiong
authors.initials: X
authors.lastname: Wu
authors.forename: Zhifang
authors.initials: Z
authors.lastname: Lin
authors.forename: Huanyang
authors.initials: H
authors.lastname: Chen
authors.forename: C T
authors.initials: CT
authors.lastname: Chan