Efficient polarization of high-angular-momentum systems

Simon Rochester; Szymon Pustelny; Konrad Szymański; Mark Raizen; Marcis Auzinsh; Dmitry Budker

doi:10.1117/12.2220208

8 March 2016 Efficient polarization of high-angular-momentum systems

Simon Rochester, Szymon Pustelny, Konrad Szymański, Mark Raizen, Marcis Auzinsh, Dmitry Budker

Proceedings Volume 9763, Slow Light, Fast Light, and Opto-Atomic Precision Metrology IX; 97630D (2016) https://doi.org/10.1117/12.2220208
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

We present a novel technique of efficient optical pumping of open, high-angular-momentum systems. The method combines two well-established approaches of population manipulation (conventional optical pumping and coherent population transfer), offering the ability to achieve higher population of a sublevel with the highest or lowest quantum number m (the “end state”) than obtainable with either of the techniques. To accomplish this task, we propose to use coherent-population-transfer technique (e.g., adiabatic fast passage) to arrange the system in such a way that spontaneously emitted photon (conventional optical pumping) carries away more entropy than in conventional schemes. This enables reduction of a number of spontaneous decays Nsd required to pump the system with the total angular momentum J from Nsd = J decays in the conventional scheme to Nsd ≲ log2(2J) decays in the proposed scheme. Since each spontaneous-emission event is potentially burdened with a loss of population (population is transferred to a dark state), this enables increasing population accumulated in the “end state”, which is important for many applications.

Citation Download Citation

Simon Rochester, Szymon Pustelny, Konrad Szymański, Mark Raizen, Marcis Auzinsh, and Dmitry Budker "Efficient polarization of high-angular-momentum systems", Proc. SPIE 9763, Slow Light, Fast Light, and Opto-Atomic Precision Metrology IX, 97630D (8 March 2016); https://doi.org/10.1117/12.2220208

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