The Detection Of Caesium Atoms By Two-Photon Resonant Ionisation Spectroscopy

K. W. D. Ledingham; C. Raine; K. M. Smith; M.H. C. Smyth; D. T. Stewart; M. Towrie; C. M. Houston

doi:10.1117/12.961123

30 June 1986 The Detection Of Caesium Atoms By Two-Photon Resonant Ionisation Spectroscopy

K. W. D. Ledingham, C. Raine, K. M. Smith, M.H. C. Smyth, D. T. Stewart, M. Towrie, C. M. Houston

Proceedings Volume 0620, Laser Applications in Chemistry and Biophysics; (1986) https://doi.org/10.1117/12.961123
Event: O-E/LASE'86 Symposium, 1986, Los Angeles, CA, United States

Abstract

The detection of gas phase atoms from a caesium source has been demonstrated by two photon resonant ionisation spectroscopy (2RPI). An excimer pumped dye laser system was used in conjunction with a proportional counter, operated at low pressure. Two photon ionisation spectra of caesium have been recorded in the 455-460nm region with the two prominent transitions at 455.5 and 459.3nm being well resolved. The dependence of the widths and relative intensities of the two transitions on incident laser fluence has been investigated.

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K. W. D. Ledingham, C. Raine, K. M. Smith, M.H. C. Smyth, D. T. Stewart, M. Towrie, and C. M. Houston "The Detection Of Caesium Atoms By Two-Photon Resonant Ionisation Spectroscopy", Proc. SPIE 0620, Laser Applications in Chemistry and Biophysics, (30 June 1986); https://doi.org/10.1117/12.961123

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