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Orbital chiral lasing in twisted bilayer metasurfaces
Mingjin Wang, Nianyuan Lv, Zixuan Zhang +11
Chirality is a fundamental concept in physics that underpins various phenomena in nonlinear optics, quantum physics, and topological photonics. Although the spin of a photon natura…
Chiral emission of vortex microlasers enabled by collective modes of guided resonances
Ye Chen, Mingjin Wang, Jiahao Si +8
Vortex lasers have attracted substantial attention in recent years owing to their wide array of applications such as micromanipulation, optical multiplexing, and quantum cryptograp…
Sweeping Plasma Frequency of Terahertz Surface Plasmon Polaritons with Graphene
Mingming Feng, Baoqing Zhang, Haotian Ling +8
Plasma frequency is the spectral boundary for low-loss propagation and evanescent decay of surface plasmon polariton (SPP) waves, which corresponds to a high cut-off phenomenon and…
Generating tightly focused perfect optical vortex for ultra-secure optical encryption
Qingshuai Yang, Zijian Xie, Mengrui Zhang +6
Light's orbital angular momentum (OAM) with inherent mode orthogonality has been suggested as a new way to the optical encryption. However, the dependence of annular intensity prof…