Double-mode CO2 laser with complex cavity for ultrasensitive sub-Doppler spectroscopy

Vadim Yu. Kurochkin; Victor N. Petrovsky; Evgeniy D. Protsenko; Alexander N. Rurukin; Anotoly M. Golovchenko

doi:10.1117/12.44255

1 July 1991 Double-mode CO2 laser with complex cavity for ultrasensitive sub-Doppler spectroscopy

Vadim Yu. Kurochkin, Victor N. Petrovsky, Evgeniy D. Protsenko, Alexander N. Rurukin, Anotoly M. Golovchenko

Proceedings Volume 1435, Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications; (1991) https://doi.org/10.1117/12.44255
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

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.

Citation Download Citation

Vadim Yu. Kurochkin, Victor N. Petrovsky, Evgeniy D. Protsenko, Alexander N. Rurukin, and Anotoly M. Golovchenko "Double-mode CO2 laser with complex cavity for ultrasensitive sub-Doppler spectroscopy", Proc. SPIE 1435, Optical Methods for Ultrasensitive Detection and Analysis: Techniques and Applications, (1 July 1991); https://doi.org/10.1117/12.44255

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KEYWORDS

Mirrors

Carbon dioxide lasers

Absorption

Spectroscopy

Polarization

Signal detection

Photodetectors

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