Saturated absorption spectroscopy of calcium in a hollow-cathode lamp

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Dammalapati, U. and Norris, I. and Riis, E., UK Engineering and Physical Sciences Research Council (EPSRC) (Funder) (2009) Saturated absorption spectroscopy of calcium in a hollow-cathode lamp. Journal of Physics B: Atomic, Molecular and Optical Physics, 42 (16). 165001. ISSN 0953-4075 (https://doi.org/10.1088/0953-4075/42/16/165001)

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Abstract

We report on a technique for obtaining dispersive saturated absorption features by two pump beams derived from an acousto-optic modulator. One of the beams is frequency shifted by the modulator allowing for a variable frequency offset of the resulting signal. They are used to saturate the atomic transition in the low-density vapour of the lamp. The sensitivity of the technique is sufficient to observe clear signals from isotopes of calcium unresolved by the inhomogeneous broadening and with natural abundances of less than 0.2%. The technique is used for offset locking the frequency of a Ti:Sapphire laser used for laser cooling and trapping of calcium.

ORCID iDs

Dammalapati, U., Norris, I. and Riis, E. ORCID logoORCID: https://orcid.org/0000-0002-3225-5302;
  • Item type:Article
    ID code:19031
    Dates:
    Date
    Event
    28 August 2009
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:26 May 2010 09:10
    Last modified:11 Nov 2024 09:27
    URI:https://strathprints.strath.ac.uk/id/eprint/19031
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