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physics.optics2022★ 57 cited
Vortex solitons in quasi-phase-matched photonic crystals
Feiyan Zhao, Xiaoxi Xu, Hexiang He +5
We report solutions for stable compound solitons in a three-dimensional quasi-phase-matched photonic crystal with the quadratic () nonlinearity. The photonic crystal is in…
physics.optics2021★ 20 cited
Geometric phase with full-wedge and half-wedge rotation in nonlinear frequency conversion
Feiyan Zhao, Jiantao Lü, Hexiang He +3
When the quasi-phase matching (QPM) parameters of the nonlinear crystal rotate along a closed path, geometric phase will be generated in the signal and idler waves that p…