Detecting magnetically guided atoms with an optical cavity

Abstract

We show that a low finesse cavity can be efficient for detecting neutral atoms. The low finesse can be compensated for by decreasing the mode waist of the cavity. We have used a near concentric resonator with a beam waist of 12$\mu$m and a finesse of only 1100 to detect magnetically guided Rb atoms with a detection sensitivity of 0.1 atom in the mode volume. For future experiments on single atom detection and cavity QED applications, it should be very beneficial to use miniaturized optical resonator integrated on atom chips.

To appear in Optics Letters

References in corpus (6)

• The Physical Implementation of Quantum Computation
• Guiding Neutral Atoms with a Wire
• Full observation of single-atom dynamics in cavity QED
• Towards single-atom detection on a chip
• Feasibility of detecting single atoms using photonic bandgap cavities
• Fabrication of alignment structures for a fiber resonator by use of deep-ultraviolet lithography

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• Diffraction-limited Fabry-Perot Cavity in the Near Concentric Regime
• A single atom detector integrated on an atom chip: fabrication, characterization and application
• A simple integrated single-atom detector
• Enhanced collective Purcell effect of coupled quantum emitter systems
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• Spatially resolved photo ionization of ultracold atoms on an atom chip
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• Fabrication of Glass Micro-Cavities for Cavity QED Experiments
• Towards quantum computing with single atoms and optical cavities on atom chips
• Towards a monolithic optical cavity for atom detection and manipulation
• Detecting Neutral Atoms on an Atom Chip
• Detection Time Distribution Predicted Using Absorbing Boundary Conditions and Imaginary Potentials