2 papers
physics.optics2020
Topological charge of finite-size photonic crystal modes
Zhixin Wang, Yong Liang, Mattias Beck +2
Topological charges are the winding numbers of polarization vectors around the vortex centers of far-field radiation. In this work, the topological charge of photonic crystal modes…
physics.optics2018
Room temperature surface emission on large-area photonic crystal quantum cascade lasers
Yong Liang, Zhixin Wang, Johanna Wolf +5
We design and fabricate large-area (1.1 mm 1.1 mm) photonic crystal quantum cascade lasers, enabling single-mode (wavelength 8.5 m) surface emission at room temp…