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Use of Te-130(2) for frequency referencing and active stabilisation of a violet extended cavity diode laser

Burns, I.S. and Hult, J. and Kaminski, C.F. (2006) Use of Te-130(2) for frequency referencing and active stabilisation of a violet extended cavity diode laser. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 63 (5). pp. 905-909. ISSN 1386-1425

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Abstract

This paper reports on the use of Te-130(2) absorption lines in active laser-locking, and in frequency referencing, of the emission of a violet extended cavity diode laser with a wavelength of around 410 nm. We note the existence of closely spaced tellurium absorption lines, suitable for referencing purposes in gas sensing applications, at wavelengths below the lower limit (417 nm) of the spectral region covered by the tellurium atlas [J. Cariou, P. Luc, Atlas du spectre d'Absorption de la Molecule de Tellure, CNRS, Paris, 1980]. The absolute positions of the lines in the acquired spectra were estimated by comparison to a simultaneously acquired fluorescence spectrum of atomic indium, and were identified using calculations based on fundamental spectroscopic data. The laser frequency was stabilised within a range of 40 MHz, which is negligible compared to typical transition widths at atmospheric pressure.

Item type: Article
ID code: 13717
Notes: 5th International Conference on Tunable Diode Laser Spectroscopy, Florence, ITALY, JUL 11, 2005
Keywords: tellurium, indium, extended cavity, tunable diode laser, absorption spectroscopy, laser induced fluorescence, Chemical engineering, Instrumentation, Spectroscopy, Atomic and Molecular Physics, and Optics, Analytical Chemistry
Subjects: Technology > Chemical engineering
Department: Faculty of Engineering > Chemical and Process Engineering
Related URLs:
    Depositing user: Dr Iain Burns
    Date Deposited: 21 Dec 2009 14:26
    Last modified: 04 Sep 2014 21:58
    URI: http://strathprints.strath.ac.uk/id/eprint/13717

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