Lamb-dip spectroscopy of rotational levels with UTC-PD terahertz emitter
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866913770052255744 |
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| author | Eguchi, Kohei Arikawa, Takashi Ito, Hiroshi Tanaka, Koichiro |
| author_facet | Eguchi, Kohei Arikawa, Takashi Ito, Hiroshi Tanaka, Koichiro |
| contents | Pump-probe saturation spectroscopy in the sub-terahertz region was performed in the rotational transition (J, K) = (16, 0) <- (15, 0) for gas-phase acetonitrile molecules in the counter-propagating configuration. We observed Lamb-dips at much lower excitation powers than previously reported. The linewidth in the zero-pressure limit was 10 kHz, which was estimated from the intensity and pressure dependence. This corresponds to the transit-time broadening. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_00668 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Lamb-dip spectroscopy of rotational levels with UTC-PD terahertz emitter Eguchi, Kohei Arikawa, Takashi Ito, Hiroshi Tanaka, Koichiro Optics Pump-probe saturation spectroscopy in the sub-terahertz region was performed in the rotational transition (J, K) = (16, 0) <- (15, 0) for gas-phase acetonitrile molecules in the counter-propagating configuration. We observed Lamb-dips at much lower excitation powers than previously reported. The linewidth in the zero-pressure limit was 10 kHz, which was estimated from the intensity and pressure dependence. This corresponds to the transit-time broadening. |
| title | Lamb-dip spectroscopy of rotational levels with UTC-PD terahertz emitter |
| topic | Optics |
| url | https://arxiv.org/abs/2504.00668 |