Optical Lattice in a High Finesse Ring Resonator

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 $m{m}^3$. We typically trap several times $10^6$ atoms at densities up to $10^{12}c{m}^{-3}$ and temperatures between 25 and 125 $\mu K$. 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.

4 pages, 3 figures

References in corpus (5)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Quantum Logic Gates in Optical Lattices
• Resonator-Enhanced Optical Dipole Trap for Fermionic Lithium Atoms
• Reducing the linewidth of a diode laser below 30 Hz by stabilization to a reference cavity with finesse above 10^5
• Improved Characterization of Elastic Scattering Near a Feshbach Resonance in 85Rb

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