Investigation of sub-Doppler cooling in an ytterbium magneto-optical trap

R. Maruyama; R. H. Wynar; M. V. Romalis; A. Andalkar; M. D. Swallows; C. E. Pearson; E. N. Fortson

Investigation of sub-Doppler cooling in an ytterbium magneto-optical trap

R. Maruyama, R. H. Wynar, M. V. Romalis, A. Andalkar, M. D. Swallows, C. E. Pearson, E. N. Fortson

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Abstract

The temperature of three isotopes of ytterbium, ¹⁷⁴Yb (I=0), ¹⁷¹Yb (I=1/2), and ¹⁷³Yb (I=5/2) in a magneto-optical trap (MOT) was measured. It was found that an isotope which offers a two-level cooling system, ¹⁷⁴Yb, has a significantly higher slope of temperature versus intensity than predicted by Doppler cooling theory. Furthermore, it was observed that the temperature as a function of normalized intensity decreases with higher angular momentum in the ground state, and the dependence is similar to values predicted by 3D simulation and measurements in alkali metals for lin ⊥ lin configuration cooling.

Original language	English (US)
Article number	011403
Pages (from-to)	011403/1-011403/4
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	68
Issue number	1
State	Published - Jul 2003

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

Cite this

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title = "Investigation of sub-Doppler cooling in an ytterbium magneto-optical trap",

abstract = "The temperature of three isotopes of ytterbium, 174Yb (I=0), 171Yb (I=1/2), and 173Yb (I=5/2) in a magneto-optical trap (MOT) was measured. It was found that an isotope which offers a two-level cooling system, 174Yb, has a significantly higher slope of temperature versus intensity than predicted by Doppler cooling theory. Furthermore, it was observed that the temperature as a function of normalized intensity decreases with higher angular momentum in the ground state, and the dependence is similar to values predicted by 3D simulation and measurements in alkali metals for lin ⊥ lin configuration cooling.",

author = "R. Maruyama and Wynar, {R. H.} and Romalis, {M. V.} and A. Andalkar and Swallows, {M. D.} and Pearson, {C. E.} and Fortson, {E. N.}",

year = "2003",

month = jul,

language = "English (US)",

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journal = "Physical Review A - Atomic, Molecular, and Optical Physics",

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T1 - Investigation of sub-Doppler cooling in an ytterbium magneto-optical trap

AU - Maruyama, R.

AU - Wynar, R. H.

AU - Romalis, M. V.

AU - Andalkar, A.

AU - Swallows, M. D.

AU - Pearson, C. E.

AU - Fortson, E. N.

PY - 2003/7

Y1 - 2003/7

N2 - The temperature of three isotopes of ytterbium, 174Yb (I=0), 171Yb (I=1/2), and 173Yb (I=5/2) in a magneto-optical trap (MOT) was measured. It was found that an isotope which offers a two-level cooling system, 174Yb, has a significantly higher slope of temperature versus intensity than predicted by Doppler cooling theory. Furthermore, it was observed that the temperature as a function of normalized intensity decreases with higher angular momentum in the ground state, and the dependence is similar to values predicted by 3D simulation and measurements in alkali metals for lin ⊥ lin configuration cooling.

AB - The temperature of three isotopes of ytterbium, 174Yb (I=0), 171Yb (I=1/2), and 173Yb (I=5/2) in a magneto-optical trap (MOT) was measured. It was found that an isotope which offers a two-level cooling system, 174Yb, has a significantly higher slope of temperature versus intensity than predicted by Doppler cooling theory. Furthermore, it was observed that the temperature as a function of normalized intensity decreases with higher angular momentum in the ground state, and the dependence is similar to values predicted by 3D simulation and measurements in alkali metals for lin ⊥ lin configuration cooling.

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ER -

Investigation of sub-Doppler cooling in an ytterbium magneto-optical trap

Abstract

All Science Journal Classification (ASJC) codes

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