Nonlinear Switch and Spatial Lattice Solitons of Photonic s-p Orbitals
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arXiv
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866912175813033984 |
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| author | Rajeevan, Gayathry Mukherjee, Sebabrata |
| author_facet | Rajeevan, Gayathry Mukherjee, Sebabrata |
| contents | We develop fs laser-fabricated asymmetric couplers and zig-zag arrays consisting of single and two-mode waveguides with bipartite nonlinearity. The fundamental mode ($s$ orbital) is near resonance with the neighboring higher-order $p$ orbital, causing efficient light transfer at low power. Due to Kerr nonlinearity, the coupler works as an all-optical switch between $s$ and $p$ orbitals. Single- and double-peak spatial solitons of $s$-$p$ orbitals form in the lattice due to the bipartite nature of the on-site nonlinearity. We probe highly localized bulk and edge solitons, peaked at the $s$ and $p$ orbitals, spectrally residing in the photonic band gap. Our work will be important for exploring inter-orbital couplings and nonlinear interactions in intricate photonic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_03250 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nonlinear Switch and Spatial Lattice Solitons of Photonic s-p Orbitals Rajeevan, Gayathry Mukherjee, Sebabrata Optics Mesoscale and Nanoscale Physics Pattern Formation and Solitons We develop fs laser-fabricated asymmetric couplers and zig-zag arrays consisting of single and two-mode waveguides with bipartite nonlinearity. The fundamental mode ($s$ orbital) is near resonance with the neighboring higher-order $p$ orbital, causing efficient light transfer at low power. Due to Kerr nonlinearity, the coupler works as an all-optical switch between $s$ and $p$ orbitals. Single- and double-peak spatial solitons of $s$-$p$ orbitals form in the lattice due to the bipartite nature of the on-site nonlinearity. We probe highly localized bulk and edge solitons, peaked at the $s$ and $p$ orbitals, spectrally residing in the photonic band gap. Our work will be important for exploring inter-orbital couplings and nonlinear interactions in intricate photonic devices. |
| title | Nonlinear Switch and Spatial Lattice Solitons of Photonic s-p Orbitals |
| topic | Optics Mesoscale and Nanoscale Physics Pattern Formation and Solitons |
| url | https://arxiv.org/abs/2408.03250 |