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Optical Lattice in a High Finesse Ring Resonator

B. Nagorny·Th. Elsaesser·H. Richter·A. Hemmerich·D. Kruse·C. Zimmermann·Ph. Courteille
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Abstract

An optical lattice with rubidium atoms ($^{85}Rb$) is formed inside a ring resonator with a finesse of $1.8 \times 10^5$ and a large mode volume of 1.3 $mm^3$. We typically trap several times $10^6$ atoms at densities up to $10^{12} cm^{-3}$ and temperatures between 25 and 125 $μK$. Despite of the narrow bandwidth (17.3 kHz) of the cavity, heating due to intra--cavity intensity fluctuations is kept at a low level, such that the time evolution of the temperature is determined by evaporative cooling.

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B. Nagorny, Th. Elsaesser, H. Richter, A. Hemmerich, D. Kruse, C. Zimmermann, Ph. Courteille. 2002-12-04. Optical Lattice in a High Finesse Ring Resonator. https://doi.org/10.1103/physreva.67.031401

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