3.5-mu m high-resolution gas sensing employing a LiNbO3 QPM-DFG waveguide module
Diode laser technology coupled with a wavelength-conversion unit to produce mid-infrared narrow bandwidth laser light applicable to trace-gas detection and with the potential for high-resolution spectroscopy is described. Quasi-phase-matched difference-frequency generation (QPM-DFG) in a compact and...
| Main Authors: | , , , , , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
2009
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| _version_ | 1826269894143901696 |
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| author | Ciaffoni, L Grilli, R Hancock, G Orr-Ewing, A Peverall, R Ritchie, G |
| author_facet | Ciaffoni, L Grilli, R Hancock, G Orr-Ewing, A Peverall, R Ritchie, G |
| author_sort | Ciaffoni, L |
| collection | OXFORD |
| description | Diode laser technology coupled with a wavelength-conversion unit to produce mid-infrared narrow bandwidth laser light applicable to trace-gas detection and with the potential for high-resolution spectroscopy is described. Quasi-phase-matched difference-frequency generation (QPM-DFG) in a compact and fibre-coupled periodically poled lithium niobate (PPLN) waveguide module mixing 1063 and 1525-nm radiations has been adopted for generating 34 μW of 3.5-μm wavelength laser light. Optical detection methods, including sensitive wavelength modulation spectroscopy and a rapid wavelength chirp technique, have been employed with a single-pass cell to investigate methane and formaldehyde absorption profiles around 2855 cm-1, as proof of principle experiments for high sensitivity and resolution spectroscopy on atmospherically important molecules. © 2008 Springer-Verlag. |
| first_indexed | 2024-03-06T21:32:19Z |
| format | Journal article |
| id | oxford-uuid:4514585c-ac83-4839-9cca-c6366adeff4f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:32:19Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:4514585c-ac83-4839-9cca-c6366adeff4f2022-03-26T15:05:42Z3.5-mu m high-resolution gas sensing employing a LiNbO3 QPM-DFG waveguide moduleJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4514585c-ac83-4839-9cca-c6366adeff4fEnglishSymplectic Elements at Oxford2009Ciaffoni, LGrilli, RHancock, GOrr-Ewing, APeverall, RRitchie, GDiode laser technology coupled with a wavelength-conversion unit to produce mid-infrared narrow bandwidth laser light applicable to trace-gas detection and with the potential for high-resolution spectroscopy is described. Quasi-phase-matched difference-frequency generation (QPM-DFG) in a compact and fibre-coupled periodically poled lithium niobate (PPLN) waveguide module mixing 1063 and 1525-nm radiations has been adopted for generating 34 μW of 3.5-μm wavelength laser light. Optical detection methods, including sensitive wavelength modulation spectroscopy and a rapid wavelength chirp technique, have been employed with a single-pass cell to investigate methane and formaldehyde absorption profiles around 2855 cm-1, as proof of principle experiments for high sensitivity and resolution spectroscopy on atmospherically important molecules. © 2008 Springer-Verlag. |
| spellingShingle | Ciaffoni, L Grilli, R Hancock, G Orr-Ewing, A Peverall, R Ritchie, G 3.5-mu m high-resolution gas sensing employing a LiNbO3 QPM-DFG waveguide module |
| title | 3.5-mu m high-resolution gas sensing employing a LiNbO3 QPM-DFG waveguide module |
| title_full | 3.5-mu m high-resolution gas sensing employing a LiNbO3 QPM-DFG waveguide module |
| title_fullStr | 3.5-mu m high-resolution gas sensing employing a LiNbO3 QPM-DFG waveguide module |
| title_full_unstemmed | 3.5-mu m high-resolution gas sensing employing a LiNbO3 QPM-DFG waveguide module |
| title_short | 3.5-mu m high-resolution gas sensing employing a LiNbO3 QPM-DFG waveguide module |
| title_sort | 3 5 mu m high resolution gas sensing employing a linbo3 qpm dfg waveguide module |
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