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physics.optics2025
Chiral solitons in quadratic quasi-phase-matched photonic crystals
Yuxin Guo, Xuening Wang, Zhiwei Fan +6
We introduce a quasi-phase-matched technique in quadratic nonlinear crystals, constructing an artificial gauge field by changing the inclination angle of stripes, which is realized…
physics.optics2025
Vortex solitons in quasi-phase-matched photonic crystals with the third harmonic generation
Xuening Wang, Yuxin Guo, Qiuyi Ning +5
We report stable composite vortex solitons in the model of a three-dimensional photonic crystal with the third-harmonic (TH) generation provided by the quasi-phase-matched quadrati…