Non-Hermitian electromagnetic double-near-zero index medium in a two-dimensional photonic crystal

Influence of index contrast in two dimensional photonic crystal lasers

Two-dimensional photonic crystal polarizer

A novel polarizer made from two-dimensional photonic bandgap materials was demonstrated theoretically. This polarizer is fundamentally different from the conventional ones. It can function in a wide frequency range with high performance and the size can be made very compact, which renders it usefully as a micropolarizer in microoptics.

Zero-velocity solitons in high-index photonic crystal fibers

Zero phase delay in negative-refractive-index photonic crystal superlattices

We show that optical beams propagating in path-averaged zero-index photonic crystal superlattices can have zero phase delay. The nanofabricated superlattices consist of alternating stacks of negative index photonic crystals and positive index homogeneous dielectric media, where the phase differences corresponding to consecutive primary unit cells are measured with integrated Mach-Zehnder interf...

Parity-time electromagnetic diodes in a two-dimensional nonreciprocal photonic crystal

Cheng He,1 Ming-Hui Lu,1 Xin Heng,2 Liang Feng,3 and Yan-Feng Chen1,* 1National Laboratory of Solid State Microstructures & Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People’s Republic of China 2Bio-Rad Laboratories, Hercules, California 94547, USA 3Department of Electrical Engineering, California Institute of Technology, Pasadena, California 91125, USA...