Rapid real-time detection of cold atoms with minimal destruction

Journal Article · Sat Jan 31 23:00:00 EST 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.023601· OSTI ID:20640756

Lye, J E; Hope, J J; Close, J D ^[1]

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1. Australian Centre for Quantum Atom Optics, Department of Physics, Australian National University, Australian Capital Territory 0200 (Australia)

We present a minimally destructive interferometric measurement of the column density of cold atoms with a passively stabilized separated beam path interferometer. We achieve a heating rate of 4 (photons/sec)/atom. The interferometer employed in these measurements utilizes a photodiode rather than a charge-coupled device camera and is suitable for the measurement of fast dynamics in Bose-Einstein condensates and real-time feedback with atom lasers. The technique is compatible with modulation techniques employing squeezed light as the probe beam for sub-shot-noise-limited measurements.

• OSTI ID: 20640756
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 69; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
CHARGE-COUPLED DEVICES
COOLING
DENSITY
DETECTION
FEEDBACK
HEATING RATE
INTERFEROMETERS
INTERFEROMETRY
LASERS
MODULATION
NOISE
PHOTODIODES
PHOTONS
RADIATION PRESSURE
VISIBLE RADIATION