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Proceedings Paper

Double-mode CO2 laser with complex cavity for ultrasensitive sub-Doppler spectroscopy
Author(s): Vadim Yu. Kurochkin; Victor N. Petrovsky; Evgeniy D. Protsenko; Alexander N. Rurukin; Anotoly M. Golovchenko
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Paper Abstract

Several key elements important for the application of laser-based photothermal spectroscopies to the study of the complexation chemistry of lanthanides and actinides in solution have been demonstrated. The sensitivity of f-f electronic transition energies and band intensities to subtle changes in complexation is illustrated through comparison of visible and near infra-red absorption spectra of well-characterized U(IV) dimers with alkoxide ligands. Significant improvements in spectroscopic band resolution and energy measurement precision for solution species are shown to be achievable through work in frozen glasses at 77 K using a very simple cryogenic apparatus. A pulsed-laser photothermal spectroscopy apparatus was constructed and shown to be sensitive to optical density changes of 10-5 in an aqueous Nd3+ solution. In addition, the capability of obtaining photothermal lensing spectra of dilute actinide solutions in frozen glasses at 77 K is demonstrated.

Paper Details

Date Published: 1 July 1991
PDF: 9 pages
Proc. SPIE 1435, Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications, (1 July 1991); doi: 10.1117/12.44255
Show Author Affiliations
Vadim Yu. Kurochkin, Moscow Engineering Physics Institute (Russia)
Victor N. Petrovsky, Moscow Engineering Physics Institute (Russia)
Evgeniy D. Protsenko, Moscow Engineering Physics Institute (Russia)
Alexander N. Rurukin, Moscow Engineering Physics Institute (Russia)
Anotoly M. Golovchenko, Moscow Engineering Physics Institute (Russia)

Published in SPIE Proceedings Vol. 1435:
Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications
Bryan L. Fearey, Editor(s)

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