Efficient Light Generation in Ultraviolet-A Band on Chip
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866910907517370368 |
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| author | Inman, Michel Ma, Zhaohui Li, Zhan Huang, Yuping |
| author_facet | Inman, Michel Ma, Zhaohui Li, Zhan Huang, Yuping |
| contents | Lithium niobate nano photonics provides highly efficient nonlinear optics processes covering a broad spectrum from ultraviolet to mid-infrared, yet studies thus far have concentrated in the near-infrared regime. Here we demonstrate light generation in the Ultraviolet-A band in a periodic poled waveguide via second harmonic generation. The internal efficiency reaches 1797 $\% W^{-1}/cm^{-2}$, marking a 9.1-times improvement over the state of art, thanks to better mode overlap and poling. Our technique can find applications in atomic clocks, frequency comb generation, sensing, and visible entanglement generation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_07009 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Efficient Light Generation in Ultraviolet-A Band on Chip Inman, Michel Ma, Zhaohui Li, Zhan Huang, Yuping Optics Lithium niobate nano photonics provides highly efficient nonlinear optics processes covering a broad spectrum from ultraviolet to mid-infrared, yet studies thus far have concentrated in the near-infrared regime. Here we demonstrate light generation in the Ultraviolet-A band in a periodic poled waveguide via second harmonic generation. The internal efficiency reaches 1797 $\% W^{-1}/cm^{-2}$, marking a 9.1-times improvement over the state of art, thanks to better mode overlap and poling. Our technique can find applications in atomic clocks, frequency comb generation, sensing, and visible entanglement generation. |
| title | Efficient Light Generation in Ultraviolet-A Band on Chip |
| topic | Optics |
| url | https://arxiv.org/abs/2504.07009 |