Spin-polarized atoms in a circularly polarized optical dipole trap

K. L. Corwin; S. J M Kuppens; Donghyun Cho; C. E. Wieman

doi:10.1142/9789812813787_0059

Spin-polarized atoms in a circularly polarized optical dipole trap

K. L. Corwin, S. J M Kuppens, Donghyun Cho, C. E. Wieman

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

The behavior of atoms in an optical far-off resonance trap is found to depend strongly on the trap polarization. Largc loss rates occur unless the polarization is perfectly linear or perfectly circular, in which case exponential lifetimcs up to 10 s arc observed. Through optimization of trap loading, samples of 4 X 10⁶atoms are obtained in a circularly polarized trap. Spin polarization of 98(1)% is measured. This trap should prove useful for precision mcasurenients such as β-decay asymmetry and should niakc rf cooling possible in optical traps.

Original language	English
Title of host publication	Collected Papers of Carl Wieman
Publisher	World Scientific Publishing Co.
Pages	428-431
Number of pages	4
ISBN (Print)	9789812813787, 9812704159, 9789812704153
DOIs	https://doi.org/10.1142/9789812813787_0059
Publication status	Published - 2008 Jan 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1142/9789812813787_0059

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abstract = "The behavior of atoms in an optical far-off resonance trap is found to depend strongly on the trap polarization. Largc loss rates occur unless the polarization is perfectly linear or perfectly circular, in which case exponential lifetimcs up to 10 s arc observed. Through optimization of trap loading, samples of 4 X 106atoms are obtained in a circularly polarized trap. Spin polarization of 98(1)% is measured. This trap should prove useful for precision mcasurenients such as β-decay asymmetry and should niakc rf cooling possible in optical traps.",

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AU - Kuppens, S. J M

AU - Cho, Donghyun

AU - Wieman, C. E.

PY - 2008/1/1

Y1 - 2008/1/1

N2 - The behavior of atoms in an optical far-off resonance trap is found to depend strongly on the trap polarization. Largc loss rates occur unless the polarization is perfectly linear or perfectly circular, in which case exponential lifetimcs up to 10 s arc observed. Through optimization of trap loading, samples of 4 X 106atoms are obtained in a circularly polarized trap. Spin polarization of 98(1)% is measured. This trap should prove useful for precision mcasurenients such as β-decay asymmetry and should niakc rf cooling possible in optical traps.

AB - The behavior of atoms in an optical far-off resonance trap is found to depend strongly on the trap polarization. Largc loss rates occur unless the polarization is perfectly linear or perfectly circular, in which case exponential lifetimcs up to 10 s arc observed. Through optimization of trap loading, samples of 4 X 106atoms are obtained in a circularly polarized trap. Spin polarization of 98(1)% is measured. This trap should prove useful for precision mcasurenients such as β-decay asymmetry and should niakc rf cooling possible in optical traps.

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BT - Collected Papers of Carl Wieman

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ER -

Spin-polarized atoms in a circularly polarized optical dipole trap

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