Mid-infrared generation and spectroscopy with a PPLN ridge waveguide
We have utilised a periodically poled LiNbO3 crystal with a waveguide structure to produce up to 146 μW of mid-IR radiation around 2976 cm-1 by difference frequency mixing of 1064 nm pump radiation with 1558 nm signal radiation. A conversion efficiency of 45%∈W-1 is achieved within a crystal of leng...
| Principais autores: | , , , , , |
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| Formato: | Journal article |
| Idioma: | English |
| Publicado em: |
2007
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| _version_ | 1826275535675719680 |
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| author | Denzer, W Hancock, G Hutchinson, A Munday, M Peverall, R Ritchie, G |
| author_facet | Denzer, W Hancock, G Hutchinson, A Munday, M Peverall, R Ritchie, G |
| author_sort | Denzer, W |
| collection | OXFORD |
| description | We have utilised a periodically poled LiNbO3 crystal with a waveguide structure to produce up to 146 μW of mid-IR radiation around 2976 cm-1 by difference frequency mixing of 1064 nm pump radiation with 1558 nm signal radiation. A conversion efficiency of 45%∈W-1 is achieved within a crystal of length 50 mm, and temperature tuning curves are reported. The resultant idler radiation is exploited for high resolution absorption studies of both methane and methanethiol. The absorption cross-sections for methanethiol in the region of 2979 cm-1 are measured and found to be ≈ 10-19 cm2, the relevance of these results to breath and headspace analysis of clinical samples containing volatile sulphur compounds is briefly discussed. © Springer-Verlag 2007. |
| first_indexed | 2024-03-06T23:00:12Z |
| format | Journal article |
| id | oxford-uuid:61d87da0-3ab3-4a26-8e74-fe80009a3911 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:00:12Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:61d87da0-3ab3-4a26-8e74-fe80009a39112022-03-26T18:02:29ZMid-infrared generation and spectroscopy with a PPLN ridge waveguideJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:61d87da0-3ab3-4a26-8e74-fe80009a3911EnglishSymplectic Elements at Oxford2007Denzer, WHancock, GHutchinson, AMunday, MPeverall, RRitchie, GWe have utilised a periodically poled LiNbO3 crystal with a waveguide structure to produce up to 146 μW of mid-IR radiation around 2976 cm-1 by difference frequency mixing of 1064 nm pump radiation with 1558 nm signal radiation. A conversion efficiency of 45%∈W-1 is achieved within a crystal of length 50 mm, and temperature tuning curves are reported. The resultant idler radiation is exploited for high resolution absorption studies of both methane and methanethiol. The absorption cross-sections for methanethiol in the region of 2979 cm-1 are measured and found to be ≈ 10-19 cm2, the relevance of these results to breath and headspace analysis of clinical samples containing volatile sulphur compounds is briefly discussed. © Springer-Verlag 2007. |
| spellingShingle | Denzer, W Hancock, G Hutchinson, A Munday, M Peverall, R Ritchie, G Mid-infrared generation and spectroscopy with a PPLN ridge waveguide |
| title | Mid-infrared generation and spectroscopy with a PPLN ridge waveguide |
| title_full | Mid-infrared generation and spectroscopy with a PPLN ridge waveguide |
| title_fullStr | Mid-infrared generation and spectroscopy with a PPLN ridge waveguide |
| title_full_unstemmed | Mid-infrared generation and spectroscopy with a PPLN ridge waveguide |
| title_short | Mid-infrared generation and spectroscopy with a PPLN ridge waveguide |
| title_sort | mid infrared generation and spectroscopy with a ppln ridge waveguide |
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