Demonstration and characterization of a detector for minimally destructive detection of Bose condensed atoms in real time

Cristina Figl; Laurent Longchambon; Matthew Jeppesen; Michael Kruger; Hans A. Bachor; Nicholas P. Robins; John D. Close

doi:10.1364/AO.45.003415

Demonstration and characterization of a detector for minimally destructive detection of Bose condensed atoms in real time

Cristina Figl^*, Laurent Longchambon, Matthew Jeppesen, Michael Kruger, Hans A. Bachor, Nicholas P. Robins, John D. Close

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We present the first detector that is capable of recording high-bandwidth atom number density measurements of a Bose-Einstein condensate, with a readout of the data in real time. It is based on a shot-noise-limited unbalanced Mach-Zehnder interferometer designed for a minimally destructive measurement of the atom column density of a Bose-Einstein condensate. The shot-noise limit is reached by phase modulating the laser in one arm and phase locking the interferometer with a second-color laser. The detector is characterized, and its sensitivity for a fractional change in the column density of a Bose-Einstein condensate is calculated. With this detection system it may be possible to implement feedback to stabilize a Bose-Einstein condensate or an atom laser.

Original language	English
Pages (from-to)	3415-3419
Number of pages	5
Journal	Applied Optics
Volume	45
Issue number	15
DOIs	https://doi.org/10.1364/AO.45.003415
Publication status	Published - 20 May 2006

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title = "Demonstration and characterization of a detector for minimally destructive detection of Bose condensed atoms in real time",

abstract = "We present the first detector that is capable of recording high-bandwidth atom number density measurements of a Bose-Einstein condensate, with a readout of the data in real time. It is based on a shot-noise-limited unbalanced Mach-Zehnder interferometer designed for a minimally destructive measurement of the atom column density of a Bose-Einstein condensate. The shot-noise limit is reached by phase modulating the laser in one arm and phase locking the interferometer with a second-color laser. The detector is characterized, and its sensitivity for a fractional change in the column density of a Bose-Einstein condensate is calculated. With this detection system it may be possible to implement feedback to stabilize a Bose-Einstein condensate or an atom laser.",

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T1 - Demonstration and characterization of a detector for minimally destructive detection of Bose condensed atoms in real time

AU - Figl, Cristina

AU - Longchambon, Laurent

AU - Jeppesen, Matthew

AU - Kruger, Michael

AU - Bachor, Hans A.

AU - Robins, Nicholas P.

AU - Close, John D.

PY - 2006/5/20

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N2 - We present the first detector that is capable of recording high-bandwidth atom number density measurements of a Bose-Einstein condensate, with a readout of the data in real time. It is based on a shot-noise-limited unbalanced Mach-Zehnder interferometer designed for a minimally destructive measurement of the atom column density of a Bose-Einstein condensate. The shot-noise limit is reached by phase modulating the laser in one arm and phase locking the interferometer with a second-color laser. The detector is characterized, and its sensitivity for a fractional change in the column density of a Bose-Einstein condensate is calculated. With this detection system it may be possible to implement feedback to stabilize a Bose-Einstein condensate or an atom laser.

AB - We present the first detector that is capable of recording high-bandwidth atom number density measurements of a Bose-Einstein condensate, with a readout of the data in real time. It is based on a shot-noise-limited unbalanced Mach-Zehnder interferometer designed for a minimally destructive measurement of the atom column density of a Bose-Einstein condensate. The shot-noise limit is reached by phase modulating the laser in one arm and phase locking the interferometer with a second-color laser. The detector is characterized, and its sensitivity for a fractional change in the column density of a Bose-Einstein condensate is calculated. With this detection system it may be possible to implement feedback to stabilize a Bose-Einstein condensate or an atom laser.

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Demonstration and characterization of a detector for minimally destructive detection of Bose condensed atoms in real time

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