Topological deformations from the hosting lattice have been applied to nanophotonics for the implementation of quantized topological states. This manipulation enables topological control of light at the wavelength scale, leading to strong light confineme
The linear dependence between the vortex number density and the amplitude of initial magnetic field demonstrates the flux trapping mechanism as well.doi:10.1007/JHEP10(2021)124Zhi-Hong LiChuan-Yin XiaHua-Bi ZengHai-Qing Zhang
Bound vortex light in an emulated topological defect in photonic lattices. Light Sci. Appl. 11, 243 (2022). Article Google Scholar Afzal, S. & Van, V. Trapping light in a Floquet topological photonic insulator by Floquet defect mode resonance. APL Photon. 6, 116101 (2021). Article ADS ...
The U(1) gauged CP 1 model with an easy-plane potential term is known to admit stable lumps [55–58], where a lump is decomposed into a pair of a vortex and anti-vortex with fractional lump charges (sometimes called merons). However, if there is no potential term, lumps are ...
In the all-DOEs setup, a binary SZP is used to generate a high charge vortex beam, and a binary GCPG placed at the focal plane of the SZP is used to measure the OAM states of the generated vortex beam. For the binary SZP shown in Fig. 1, the transmittance function can be ...
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5b). This observation confirms that the emergence of the mid-gap cavity mode is solely due to the dual-topology mechanism: without the nontrivial topology in wavevector space, the dislocation alone cannot induce 0D light-trapping. The electromagnetic field profile of the cavity mode indicates ...
These crystals consist of arrays of intensity nulls, each corresponding to a phase singularity of the field carrying orbital angular momentum (OAM) with a topological charge7,8. The self-organizing nature of these vortex crystal lasers solves a difficult energy minimization problem, making them ...
Huang et al.: Vortex solitons in topological disclination lattices 3497 ching the eigenmodes of the form Ψ(x, y, z) = (x, y)ei z, where is the propagation constant (eigenvalue) and the real function (x, y) describes the modal field. The depen- dencies of the eigenvalues on the ...
We notice that the polarization field introduced above is actually a field indicating the polarization responses of resonant modes of a 2D periodic structure in the momentum space. Readers might be reminded of the mechanism of Pancharatnam-Berry (PB) phase based optical vortex generators: spatial win...