Collimated UV light generation by two-photon excitation to a Rydberg state in Rb vapor
We use two continuous-wave laser beams of 780 nm and 515 nm to optically drive Rb85 atoms in a heated vapor cell to a low-lying Rydberg state 10D5/2. We observe a collimated ultraviolet (UV) beam at 311 nm, corresponding to the transition frequency from the 11P3/2 state to the 5S1/2 state. This indi...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
OSA Publishing
2019
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| _version_ | 1826304283055751168 |
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| author | Lam, M Pal, SB Vogt, T Gross, C Kiffner, M Li, W |
| author_facet | Lam, M Pal, SB Vogt, T Gross, C Kiffner, M Li, W |
| author_sort | Lam, M |
| collection | OXFORD |
| description | We use two continuous-wave laser beams of 780 nm and 515 nm to optically drive Rb85 atoms in a heated vapor cell to a low-lying Rydberg state 10D5/2. We observe a collimated ultraviolet (UV) beam at 311 nm, corresponding to the transition frequency from the 11P3/2 state to the 5S1/2 state. This indicates the presence of a coherent four-wave mixing process, built up by two input laser fields as well as terahertz (THz) radiation of 3.28 THz, which is generated by amplified spontaneous emission between the 10D5/2 and 11P3/2 states. We characterize the 311 nm UV light generation and its dependence on various physical parameters. This scheme could open up a new possibility for generating narrow-band THz waves as well as deep UV radiation. |
| first_indexed | 2024-03-07T06:15:27Z |
| format | Journal article |
| id | oxford-uuid:f0ed2436-ceda-4ebf-9496-60a5662e81d4 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:15:27Z |
| publishDate | 2019 |
| publisher | OSA Publishing |
| record_format | dspace |
| spelling | oxford-uuid:f0ed2436-ceda-4ebf-9496-60a5662e81d42022-03-27T11:51:55ZCollimated UV light generation by two-photon excitation to a Rydberg state in Rb vaporJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f0ed2436-ceda-4ebf-9496-60a5662e81d4EnglishSymplectic Elements at OxfordOSA Publishing2019Lam, MPal, SBVogt, TGross, CKiffner, MLi, WWe use two continuous-wave laser beams of 780 nm and 515 nm to optically drive Rb85 atoms in a heated vapor cell to a low-lying Rydberg state 10D5/2. We observe a collimated ultraviolet (UV) beam at 311 nm, corresponding to the transition frequency from the 11P3/2 state to the 5S1/2 state. This indicates the presence of a coherent four-wave mixing process, built up by two input laser fields as well as terahertz (THz) radiation of 3.28 THz, which is generated by amplified spontaneous emission between the 10D5/2 and 11P3/2 states. We characterize the 311 nm UV light generation and its dependence on various physical parameters. This scheme could open up a new possibility for generating narrow-band THz waves as well as deep UV radiation. |
| spellingShingle | Lam, M Pal, SB Vogt, T Gross, C Kiffner, M Li, W Collimated UV light generation by two-photon excitation to a Rydberg state in Rb vapor |
| title | Collimated UV light generation by two-photon excitation to a Rydberg state in Rb vapor |
| title_full | Collimated UV light generation by two-photon excitation to a Rydberg state in Rb vapor |
| title_fullStr | Collimated UV light generation by two-photon excitation to a Rydberg state in Rb vapor |
| title_full_unstemmed | Collimated UV light generation by two-photon excitation to a Rydberg state in Rb vapor |
| title_short | Collimated UV light generation by two-photon excitation to a Rydberg state in Rb vapor |
| title_sort | collimated uv light generation by two photon excitation to a rydberg state in rb vapor |
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