Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode

W. Denzer; M. L. Hamilton; G. Hancock; Meez Islam; C. E. Langley; R. Peverall; G. A.D. Ritchie

doi:10.1039/b916807a

Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode

W. Denzer, M. L. Hamilton, G. Hancock, Meez Islam, C. E. Langley, R. Peverall, G. A.D. Ritchie

Teesside University

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

A fibre coupled near-infrared superluminescent light emitting diode that emits ∼10 mW of radiation between 1.62 and 1.7 m is employed in combination with a broad-band cavity enhanced spectrometer consisting of a linear optical cavity with mirrors of reflectivity ∼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 × 10^-8 cm^-1 using the dispersive spectrometer in combination with phase-sensitive detection, and 1.5 × 10^-8 cm^-1 using the Fourier transform interferometer (expressed as a minimum detectable absorption coefficient) over several minutes of acquisition time.

Original language	English
Pages (from-to)	2220-2223
Number of pages	4
Journal	Analyst
Volume	134
Issue number	11
DOIs	https://doi.org/10.1039/b916807a
Publication status	Published - 29 Dec 2009

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abstract = "A fibre coupled near-infrared superluminescent light emitting diode that emits ∼10 mW of radiation between 1.62 and 1.7 m is employed in combination with a broad-band cavity enhanced spectrometer consisting of a linear optical cavity with mirrors of reflectivity ∼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 × 10-8 cm-1 using the dispersive spectrometer in combination with phase-sensitive detection, and 1.5 × 10-8 cm-1 using the Fourier transform interferometer (expressed as a minimum detectable absorption coefficient) over several minutes of acquisition time.",

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T1 - Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode

AU - Denzer, W.

AU - Hamilton, M. L.

AU - Hancock, G.

AU - Islam, Meez

AU - Langley, C. E.

AU - Peverall, R.

AU - Ritchie, G. A.D.

PY - 2009/12/29

Y1 - 2009/12/29

N2 - A fibre coupled near-infrared superluminescent light emitting diode that emits ∼10 mW of radiation between 1.62 and 1.7 m is employed in combination with a broad-band cavity enhanced spectrometer consisting of a linear optical cavity with mirrors of reflectivity ∼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 × 10-8 cm-1 using the dispersive spectrometer in combination with phase-sensitive detection, and 1.5 × 10-8 cm-1 using the Fourier transform interferometer (expressed as a minimum detectable absorption coefficient) over several minutes of acquisition time.

AB - A fibre coupled near-infrared superluminescent light emitting diode that emits ∼10 mW of radiation between 1.62 and 1.7 m is employed in combination with a broad-band cavity enhanced spectrometer consisting of a linear optical cavity with mirrors of reflectivity ∼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 × 10-8 cm-1 using the dispersive spectrometer in combination with phase-sensitive detection, and 1.5 × 10-8 cm-1 using the Fourier transform interferometer (expressed as a minimum detectable absorption coefficient) over several minutes of acquisition time.

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Near-infrared broad-band cavity enhanced absorption spectroscopy using a superluminescent light emitting diode

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