Ringdown and cavity-enhanced absorption spectroscopy using a continuous-wave tunable diode laser and a rapidly swept optical cavity
Y He, BJ Orr - Chemical Physics Letters, 2000 - Elsevier
We use a rapidly swept optical cavity in a novel approach to cavity ringdown spectroscopy
(CRDS) with a continuous-wave (cw) laser. This simplifies cw-CRDS by eliminating the need
for a fast optical switch and is demonstrated by recording weak combination-band spectra of
carbon dioxide diluted in nitrogen, using a cw single-mode tunable diode laser (TDL) in the
1.55 μm near-infrared region. We employ a simultaneous combination of CRDS and cavity-
enhanced absorption spectroscopy, to compensate for nonlinear CRDS response that is …
(CRDS) with a continuous-wave (cw) laser. This simplifies cw-CRDS by eliminating the need
for a fast optical switch and is demonstrated by recording weak combination-band spectra of
carbon dioxide diluted in nitrogen, using a cw single-mode tunable diode laser (TDL) in the
1.55 μm near-infrared region. We employ a simultaneous combination of CRDS and cavity-
enhanced absorption spectroscopy, to compensate for nonlinear CRDS response that is …
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