Composite solitary vortices of three-wave mixing in quasi-phase-matched photonic crystals
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913470924980224 |
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| author | Kong, Chao Li, Jinqing Tang, Xinyi Li, Xuli Jiao, Ju Cao, Jun Deng, Haiming |
| author_facet | Kong, Chao Li, Jinqing Tang, Xinyi Li, Xuli Jiao, Ju Cao, Jun Deng, Haiming |
| contents | We report the composite vortex solitons of three-wave mixing propagate stably in a three-dimensional (3D) quasi-phase-matched photonic crystals (QPM-PhC). The modulation of QPM-PhC is designed as a checkerboard pattern. The vortex solitons, composed by three waves ($ω_{1,2,3}$) propagating through the lattices, exhibit a four-spotted discrete type, which gives rise to four distinct modes: zero-vorticity, vortex, anti-vortex, and quadrupole. The composite vortex solitons result from combinations of these modes and lead to four cases: vortex doubling, hidden vortices, vortex up-conversion, and anti-vortex up-conversion. Our findings indicate that all solitons can propagate stably through the crystals for 10 centimeters; however, only the vortex-doubling case remains stable over longer distances. This work enhances the understanding of vortex beam manipulation within 3D QPM-PhCs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_09086 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Composite solitary vortices of three-wave mixing in quasi-phase-matched photonic crystals Kong, Chao Li, Jinqing Tang, Xinyi Li, Xuli Jiao, Ju Cao, Jun Deng, Haiming Optics We report the composite vortex solitons of three-wave mixing propagate stably in a three-dimensional (3D) quasi-phase-matched photonic crystals (QPM-PhC). The modulation of QPM-PhC is designed as a checkerboard pattern. The vortex solitons, composed by three waves ($ω_{1,2,3}$) propagating through the lattices, exhibit a four-spotted discrete type, which gives rise to four distinct modes: zero-vorticity, vortex, anti-vortex, and quadrupole. The composite vortex solitons result from combinations of these modes and lead to four cases: vortex doubling, hidden vortices, vortex up-conversion, and anti-vortex up-conversion. Our findings indicate that all solitons can propagate stably through the crystals for 10 centimeters; however, only the vortex-doubling case remains stable over longer distances. This work enhances the understanding of vortex beam manipulation within 3D QPM-PhCs. |
| title | Composite solitary vortices of three-wave mixing in quasi-phase-matched photonic crystals |
| topic | Optics |
| url | https://arxiv.org/abs/2408.09086 |