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https://hdl.handle.net/2440/83015
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DC Field | Value | Language |
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dc.contributor.author | Truong, Gar-Wing | en |
dc.contributor.author | Douglass, Kevin O. | en |
dc.contributor.author | Maxwell, Stephen E. | en |
dc.contributor.author | van Zee, Roger D. | en |
dc.contributor.author | Plusquellic, David F. | en |
dc.contributor.author | Hodges, Joseph T. | en |
dc.contributor.author | Long, David A. | en |
dc.date.issued | 2013 | en |
dc.identifier.citation | Nature Photonics, 2013; 7(7):532-534 | en |
dc.identifier.issn | 1749-4885 | en |
dc.identifier.uri | http://hdl.handle.net/2440/83015 | - |
dc.description | Letter | en |
dc.description.abstract | Challenging applications in trace gas measurements require low uncertainty and high acquisition rates. Many cavity-enhanced spectroscopies exhibit significant sensitivity and potential, but their scanning rates are limited by reliance on either mechanical or thermal frequency tuning. Here, we present frequency-agile, rapid scanning spectroscopy (FARS) in which a high-bandwidth electro-optic modulator steps a selected laser sideband to successive optical cavity modes. This approach involves no mechanical motion and allows for a scanning rate of 8 kHz per cavity mode, a rate that is limited only by the cavity response time itself. Unlike rapidly frequency-swept techniques FARS does not reduce the measurement duty cycle, degrade the spectrum's frequency axis or require an unusual cavity configuration. FARS allows for a sensitivity of ~2 × 10−12 cm−1 Hz−1/2 and a tuning range exceeding 70 GHz. This technique shows promise for fast and sensitive trace gas measurements and studies of chemical kinetics. | en |
dc.description.statementofresponsibility | G.-W. Truong, K. O. Douglass, S. E. Maxwell, R. D. van Zee, D. F. Plusquellic, J. T. Hodges & D. A. Long | en |
dc.publisher | Nature Publishing Group | en |
dc.rights | © 2013, Rights Managed by Nature Publishing Group | en |
dc.title | Frequency-agile, rapid scanning spectroscopy | en |
dc.type | Journal article | en |
dc.contributor.school | School of Chemistry and Physics | en |
dc.contributor.organisation | Institute for Photonics & Advanced Sensing (IPAS) | en |
dc.identifier.doi | 10.1038/nphoton.2013.98 | en |
Appears in Collections: | IPAS publications |
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