Cavity ring-down spectroscopy with Fourier-transform-limited light pulses

We have investigated the implications of using a pulsed, nearly Fourier-transform-limited, single-mode light source for cavity ring-down spectroscopy (CRDS) in the mid-infrared spectral range. We show that in the case where the coherence time and duration of the light pulse exceeds the cavity roundt...

Full description

Saved in:
Bibliographic Details
Published in:Chemical physics letters 1996-08, Vol.258 (1), p.63-70
Main Authors: Martin, J., Paldus, B.A., Zalicki, P., Wahl, E.H., Owano, T.G., Harris, J.S., Kruger, C.H., Zare, R.N.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have investigated the implications of using a pulsed, nearly Fourier-transform-limited, single-mode light source for cavity ring-down spectroscopy (CRDS) in the mid-infrared spectral range. We show that in the case where the coherence time and duration of the light pulse exceeds the cavity roundtrip time, mode beating generates oscillations in the ring-down waveform. When the period of the oscillations is comparable to the ring-down time, it becomes difficult to obtain meaningful decay constants. This situation can be avoided by careful choice of cavity geometry and mode matching conditions together with suitable electronic filtering.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(96)00609-4