Sub-Doppler cooling of fermionic Hg isotopes in a magneto-optical trap

J. J. McFerran; L. Yi; S. Mejri; S. Bize

doi:10.1364/OL.35.003078

Sub-Doppler cooling of fermionic Hg isotopes in a magneto-optical trap

J. J. McFerran, L. Yi, S. Mejri, S. Bize

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

28 Citations (Scopus)

Abstract

Laser cooling and trapping of neutral mercury is performed in a single-stage ¹S₀ ↔ ³P₁ 3D magneto-optical trap. We give a detailed account of the atom cloud size and temperature for both bosonic (²⁰⁰Hg and ²⁰²Hg) and fermionic (¹⁹⁹Hg and ²⁰¹Hg) isotopes. The bosonic isotope temperatures are in close agreement with Doppler cooling theory, while temperatures obtained for the fermionic isotopes are lower, suggesting the presence of sub-Doppler cooling. A minimum temperature of 29 ± 4 μK is achieved for ²⁰¹Hg.

Original language	English
Pages (from-to)	3078-3080
Number of pages	3
Journal	Optics Letters
Volume	35
Issue number	18
DOIs	https://doi.org/10.1364/OL.35.003078
Publication status	Published - 16 Sept 2010
Externally published	Yes

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abstract = "Laser cooling and trapping of neutral mercury is performed in a single-stage 1S0 ↔ 3P1 3D magneto-optical trap. We give a detailed account of the atom cloud size and temperature for both bosonic (200Hg and 202Hg) and fermionic (199Hg and 201Hg) isotopes. The bosonic isotope temperatures are in close agreement with Doppler cooling theory, while temperatures obtained for the fermionic isotopes are lower, suggesting the presence of sub-Doppler cooling. A minimum temperature of 29 ± 4 μK is achieved for 201Hg.",

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AU - McFerran, J. J.

AU - Yi, L.

AU - Mejri, S.

AU - Bize, S.

PY - 2010/9/16

Y1 - 2010/9/16

N2 - Laser cooling and trapping of neutral mercury is performed in a single-stage 1S0 ↔ 3P1 3D magneto-optical trap. We give a detailed account of the atom cloud size and temperature for both bosonic (200Hg and 202Hg) and fermionic (199Hg and 201Hg) isotopes. The bosonic isotope temperatures are in close agreement with Doppler cooling theory, while temperatures obtained for the fermionic isotopes are lower, suggesting the presence of sub-Doppler cooling. A minimum temperature of 29 ± 4 μK is achieved for 201Hg.

AB - Laser cooling and trapping of neutral mercury is performed in a single-stage 1S0 ↔ 3P1 3D magneto-optical trap. We give a detailed account of the atom cloud size and temperature for both bosonic (200Hg and 202Hg) and fermionic (199Hg and 201Hg) isotopes. The bosonic isotope temperatures are in close agreement with Doppler cooling theory, while temperatures obtained for the fermionic isotopes are lower, suggesting the presence of sub-Doppler cooling. A minimum temperature of 29 ± 4 μK is achieved for 201Hg.

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Sub-Doppler cooling of fermionic Hg isotopes in a magneto-optical trap

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