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Bound States in the Continuum in Bilayer Photonic Crystal with TE-TM Cross-Coupling
Hong-Fei Wang, Samit Kumar Gupta, Xue-Yi Zhu +3
Bound states in the continuum (BICs) in photonic crystals represent the unique solutions of wave equations possessing an infinite quality-factor. We design a type of bilayer photon…
Parity-Time Symmetry in Non-Hermitian Complex Optical Media
Samit Kumar Gupta, Yi Zou, Xue-Yi Zhu +4
The explorations of the quantum-inspired symmetries in optical and photonic systems have witnessed immense research interests both fundamentally and technologically in a wide range…
Topological Flat Band and Parity-Time Symmetry in a Honeycomb Lattice of Coupled Resonant Optical Waveguides
Xue-Yi Zhu, Samit Kumar Gupta, Xiao-Chen Sun +6
Two-dimensional (2D) coupled resonant optical waveguide (CROW), exhibiting topological edge states, provides an efficient platform for designing integrated topological photonic dev…
Photonic analogue of quantum spin Hall effect
Cheng He, Xiao-Chen Sun, Xiao-ping Liu +4
Symmetry-protected photonic topological insulator exhibiting robust pseudo-spin-dependent transportation, analogous to quantum spin Hall (QSH) phases and topological insulators, ar…
Optical Analogue of Quantum Spin Hall Effect in a Two-Dimensional Gyrotropic Photonic Crystal
Cheng He, Xiao-Chen Sun, Xiao-ping Liu +4
We propose an optical counterpart of the quantum spin Hall (QSH) effect in a two-dimensional photonic crystal composed of a gyrotropic medium exhibiting both gyroelectric and gyrom…
Nonreciprocal resonant transmission/reflection based on a one-dimensional photonic crystal adjacent to the magneto-optical metal film
Cheng He, Chang-Sheng Yuan, Ming-Hui Lu +2
We report the design of nonreciprocal resonant transmission/reflection using a one-dimensional photonic crystal (1DPC) adjacent to the magneto-optical (MO) metal film. The nonrecip…