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Study of CPO resonances on the intercombination line in Yb-173

Kumar, Pushpander and Singh, Alok K and Bharti, Vineet and Natarajan, Vasant and Pandey, Kanhaiya (2018) Study of CPO resonances on the intercombination line in Yb-173. In: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 51 (3).

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Official URL: http://dx.doi.org/10.1088/1361-6455/aaa2cb


We study coherent population oscillations in an odd isotope of the two-electron atom Yb. The experiments are done using magnetic sublevels of the F-g = 5/2 -> F-e = 3/2 hyperfine transition in Yb-173 of the S-1(0) -> P-3(1) intercombination line. The experiments are done both with and without an applied magnetic field. In the absence of an applied field, the complicated sublevel structure along with the saturated fluorescence effect causes the linewidth to be larger than the 190 kHz natural linewidth of the transition. In the presence of a field (of magnitude 330 mG), a well-defined quantization axis is present which results in the formation of two M-type systems. The total fluorescence is then limited by spin coherence among the ground sublevels. In addition, the pump beam gets detuned from resonance which results in a reduced scattering rate from the P-3(1) state. Both of these effects result in a reduction of the linewidth to a subnatural value of about 100 kHz.

Item Type: Journal Article
Publisher: 10.1088/1361-6455/aaa2cb
Additional Information: Copy right for this article belongs to the IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 25 Jan 2018 10:12
Last Modified: 25 Jan 2018 10:12
URI: http://eprints.iisc.ac.in/id/eprint/58849

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