Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode.
A fibre coupled near-infrared superluminescent light emitting diode that emits approximately 10 mW of radiation between 1.62 and 1.7 microm is employed in combination with a broad-band cavity enhanced spectrometer consisting of a linear optical cavity with mirrors of reflectivity approximately 99.98...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2009
|
| _version_ | 1797095822588903424 |
|---|---|
| author | Denzer, W Hamilton, M Hancock, G Islam, M Langley, C Peverall, R Ritchie, G |
| author_facet | Denzer, W Hamilton, M Hancock, G Islam, M Langley, C Peverall, R Ritchie, G |
| author_sort | Denzer, W |
| collection | OXFORD |
| description | A fibre coupled near-infrared superluminescent light emitting diode that emits approximately 10 mW of radiation between 1.62 and 1.7 microm is employed in combination with a broad-band cavity enhanced spectrometer consisting of a linear optical cavity with mirrors of reflectivity approximately 99.98% and either a dispersive near-infrared spectrometer or a Fourier transform interferometer. Results are presented on the absorption of 1,3-butadiene, and sensitivities are achieved of 6.1 x 10(-8) cm(-1) using the dispersive spectrometer in combination with phase-sensitive detection, and 1.5 x 10(-8) cm(-1) using the Fourier transform interferometer (expressed as a minimum detectable absorption coefficient) over several minutes of acquisition time. |
| first_indexed | 2024-03-07T04:33:26Z |
| format | Journal article |
| id | oxford-uuid:cf1d1676-e17f-474b-8571-4f20275c9763 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:33:26Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:cf1d1676-e17f-474b-8571-4f20275c97632022-03-27T07:40:14ZNear-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:cf1d1676-e17f-474b-8571-4f20275c9763EnglishSymplectic Elements at Oxford2009Denzer, WHamilton, MHancock, GIslam, MLangley, CPeverall, RRitchie, GA fibre coupled near-infrared superluminescent light emitting diode that emits approximately 10 mW of radiation between 1.62 and 1.7 microm is employed in combination with a broad-band cavity enhanced spectrometer consisting of a linear optical cavity with mirrors of reflectivity approximately 99.98% and either a dispersive near-infrared spectrometer or a Fourier transform interferometer. Results are presented on the absorption of 1,3-butadiene, and sensitivities are achieved of 6.1 x 10(-8) cm(-1) using the dispersive spectrometer in combination with phase-sensitive detection, and 1.5 x 10(-8) cm(-1) using the Fourier transform interferometer (expressed as a minimum detectable absorption coefficient) over several minutes of acquisition time. |
| spellingShingle | Denzer, W Hamilton, M Hancock, G Islam, M Langley, C Peverall, R Ritchie, G Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode. |
| title | Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode. |
| title_full | Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode. |
| title_fullStr | Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode. |
| title_full_unstemmed | Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode. |
| title_short | Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode. |
| title_sort | near infrared broad band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode |
| work_keys_str_mv | AT denzerw nearinfraredbroadbandcavityenhancedabsorptionspectroscopyusingasuperluminescentlightemittingdiode AT hamiltonm nearinfraredbroadbandcavityenhancedabsorptionspectroscopyusingasuperluminescentlightemittingdiode AT hancockg nearinfraredbroadbandcavityenhancedabsorptionspectroscopyusingasuperluminescentlightemittingdiode AT islamm nearinfraredbroadbandcavityenhancedabsorptionspectroscopyusingasuperluminescentlightemittingdiode AT langleyc nearinfraredbroadbandcavityenhancedabsorptionspectroscopyusingasuperluminescentlightemittingdiode AT peverallr nearinfraredbroadbandcavityenhancedabsorptionspectroscopyusingasuperluminescentlightemittingdiode AT ritchieg nearinfraredbroadbandcavityenhancedabsorptionspectroscopyusingasuperluminescentlightemittingdiode |