70 MW-level picosecond mid-infrared radiation generation by difference frequency generation in AgGaS2, BaGa4Se7, LiGaSe2, and LiGaS2
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
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2025
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| _version_ | 1866913730262990848 |
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| author | Jelínek, Michal Frank, Milan Kubeček, Václav Novák, Ondřej Huynh, Jaroslav Cimrman, Martin Chyla, Michal Smrž, Martin Mocek, Tomáš |
| author_facet | Jelínek, Michal Frank, Milan Kubeček, Václav Novák, Ondřej Huynh, Jaroslav Cimrman, Martin Chyla, Michal Smrž, Martin Mocek, Tomáš |
| contents | Comparative study of nonlinear crystals for picosecond difference frequency generation in mid-IR is presented. Nonlinear crystals of AgGaS$_2$, BaGa$_4$Se$_7$, LiGaSe$_2$, and LiGaS$_2$ were studied. Samples of AgGaS$_2$, BaGa$_4$Se$_7$, LiGaSe$_2$, and LiGaS$_2$ were tested in thee sets having lengths of 2, 4, or 8 mm. In order to investigate the dependence of efficiency on the crystal length, three sets of crystals with lengths of 2, 4, or 8 mm were tested. The developed tunable DFG system was driven by the 1.03 $μ$m, 1.8 ps, Yb:YAG thin-disk laser system operated at the repetition rate of 10 or 100 Hz. As the best result, picosecond mid-IR pulses at a wavelength of $\sim$7 $μ$m with the energy up to 130 $μ$J corresponding to the peak power of $\sim$72 MW were generated using the 8 mm long LiGaS$_2$ crystal. Using the BaGa$_4$Se$_7$ crystal, DFG tunability in the wavelength range from 6 up to 13 $μ$m was achieved. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_08584 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | 70 MW-level picosecond mid-infrared radiation generation by difference frequency generation in AgGaS2, BaGa4Se7, LiGaSe2, and LiGaS2 Jelínek, Michal Frank, Milan Kubeček, Václav Novák, Ondřej Huynh, Jaroslav Cimrman, Martin Chyla, Michal Smrž, Martin Mocek, Tomáš Optics Comparative study of nonlinear crystals for picosecond difference frequency generation in mid-IR is presented. Nonlinear crystals of AgGaS$_2$, BaGa$_4$Se$_7$, LiGaSe$_2$, and LiGaS$_2$ were studied. Samples of AgGaS$_2$, BaGa$_4$Se$_7$, LiGaSe$_2$, and LiGaS$_2$ were tested in thee sets having lengths of 2, 4, or 8 mm. In order to investigate the dependence of efficiency on the crystal length, three sets of crystals with lengths of 2, 4, or 8 mm were tested. The developed tunable DFG system was driven by the 1.03 $μ$m, 1.8 ps, Yb:YAG thin-disk laser system operated at the repetition rate of 10 or 100 Hz. As the best result, picosecond mid-IR pulses at a wavelength of $\sim$7 $μ$m with the energy up to 130 $μ$J corresponding to the peak power of $\sim$72 MW were generated using the 8 mm long LiGaS$_2$ crystal. Using the BaGa$_4$Se$_7$ crystal, DFG tunability in the wavelength range from 6 up to 13 $μ$m was achieved. |
| title | 70 MW-level picosecond mid-infrared radiation generation by difference frequency generation in AgGaS2, BaGa4Se7, LiGaSe2, and LiGaS2 |
| topic | Optics |
| url | https://arxiv.org/abs/2503.08584 |