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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/065/03/0403-0411

    • Keywords

       

      Diode laser; frequency stabilization; laser atom cooling; agneto-optic trap

    • Abstract

       

      We present results of a study of frequency stabilization of a diode laser (λ = 780 nm) using the Doppler-free dichroic lock (DFDL) technique and its use for laser cooling of atoms. Quantitative measurements of frequency stability were performed and the Allan variance was found to be 6.9 × 1011 for an averaging time of 10 s. The frequency-stabilized diode laser was used to obtain the trapping beams for a magneto-optic trap (MOT) for Rb atoms. Using the DFDL technique, the laser frequency could be locked over a wide range and this enabled measurement of detuning dependence of the number and temperature of cold atoms using a relatively simple experimental set-up.

    • Author Affiliations

       

      V B Tiwari1 S R Mishra1 H S Rawat1 S Singh1 S P Ram1 S C Mehendale1

      1. Laser Physics Division, Centre for Advanced Technology, Indore - 452 013, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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