Manipulating the field distribution via optical transformation.
Using the coordinate transformation theory, we propose a way to control the field distribution of electromagnetic wave in a waveguide filling with properly designed transformation media. The results show that the field distribution of the electromagnetic wave can be compressed and amplified in both longitudinal and transverse direction. A realizable layered waveguide based on the discrete optical transformation is also designed to manipulate the field distribution of the electromagnetic wave. Potential applications, i.e., turn a narrow (wide) slit into a large (small) window, are investigated in detail.
Zang
Xiaofei
X
State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai JiaoTong University, Shanghai 200240, China.
Jiang
Chun
C
D017076:Computer-Aided Design; D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation