388 citations · 666 across the 8 of their papers we have counts for
7 papers · 1 filter
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…
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…
Analytical study of mode degeneracy in non-Hermitian photonic crystals with TM-like polarization
Xuefan Yin, Yong Liang, Liangfu Ni +3
We present an analytical study of the mode degeneracy in non-Hermitian photonic crystals (PC) with symmetry, from the perspective of the coupled-wave-theory (CWT). The wav…
Analytical coupled-wave model for photonic crystal quantum cascade lasers
Zhixin Wang, Yong Liang, Xuefan Yin +3
A coupled-wave model is developed for photonic-crystal quantum cascade lasers. The analytical model provides an efficient analysis of full three-dimensional large-area device struc…
Room Temperature Operation of a Buried Heterostructure Photonic Crystal Quantum Cascade Laser
R. Peretti, V. Liverini, J. M. Wolf +6
High power single mode quantum cascade lasers with a narrow far field are important for several applications including surgery or military countermeasure. Existing technologies suf…
Analytical Perspective for Photonic Bound States in the Continuum in Photonic Crystal Slabs
Yi Yang, Chao Peng, Yong Liang +2
We investigate the formation of photonic bound states in the continuum (BICs) in photonic crystal slabs from an analytical perspective. Unlike the stationary at- BICs which orig…
Coupled-wave model for square-lattice photonic-crystal lasers with TE polarization -- a general approach
Yong Liang, Chao Peng, Kyosuke Sakai +2
A general coupled-wave model is presented for square-lattice photonic crystal (PC) lasers with transverse-electric polarization. This model incorporates the high-order coupling eff…