Abstract

We propose a new scheme to guide and cool three-level alkali-metal atoms in a blue-detuned interference field composed of two counter-propagating doughnut hollow beams, and analyze the intensity distribution of the interference field of the two hollow beams and its intensity gradient one. Our study shows that the high intensity gradient of the interference field is desirable to realize intensity-gradient cooling for the guided atoms, and the minimum optical potential at the nodes of the interference field is high enough to guide almost all atoms released from a standard magneto-optical trap. We also perform Monte-Carlo simulations for dynamic process of the intensity-gradient cooling, and show that an 87Rb atomic sample with a temperature of 120µK can be directly cooled to a final equilibrium temperature of 4.71µK in our guiding scheme.

© 2006 Optical Society of America

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  1. J. Yin, W. Gao, and Y. Zhu, "Generation of dark hollow beams and their applications," Prog. Opt. 45, 119-204 (2003).
    [CrossRef]
  2. J. Yin, Y. Zhu, W. Jhe, and Y. Wang, "Atom guiding and cooling in a dark hollow laser beam," Phys. Rev. A 58,509-513 (1998).
    [CrossRef]
  3. M. J. Renn, E. A. Donley, E. A. Cornell, C. E. Wieman, and D. Z. Anderson, "Evanescent-wave guiding of atoms in hollow optical fibers," Phys. Rev. A 53, R648-R651 (1996).
    [CrossRef] [PubMed]
  4. H. Ito, T. Nakata, K. Sakaki, M. Ohtsu, K. I. Lee, and W. Jhe, "Laser spectroscopy of atoms guiding by evanescent waves in micron-sided hollow optical fibers," Phys. Rev. Lett. 76, 4500-4503 (1996).
    [CrossRef] [PubMed]
  5. H. Ito, K. Sakaki, W. Jhe, and M. Ohtsu, "Evanescent-light induced atom-guidance using a hollow optical fiber with light coupled sideways," Opt. Commun. 141, 43-47 (1997).
    [CrossRef]
  6. Z. Wang, M. Dai, and J. Yin, "Atomic (or molecular) guiding using a blue-detuned doughnut mode in a hollow metallic waveguide," Opt. Express. 13,8406-8423 (2005).
    [CrossRef] [PubMed]
  7. O. Morsch, and D. R. Meacher, "Proposal for an optical funnel trap," Opt. Commun. 148, 49-53 (1998).
    [CrossRef]
  8. Yu. B. Ovchinnikov, I. Manek, A. I. Sidorov, G. Wasik, and R. Grimm, "Gravito-optical atom trap based on a conical hollow beam," Europhys. Lett. 43,510-515 (1998).
    [CrossRef]
  9. Yu. B. Ovchinnikov, I. Manek, and R. Grimm, "Surface trap for Cs atoms based on evanescent-wave cooling," Phys. Rev. Lett. 79, 2225-2228 (1997).
    [CrossRef]
  10. J. Yin, "Realization and research of optically-trapped quantum degenerate gases," Phys. Rep. 430,1-116 (2006).
    [CrossRef]

2006

J. Yin, "Realization and research of optically-trapped quantum degenerate gases," Phys. Rep. 430,1-116 (2006).
[CrossRef]

2005

Z. Wang, M. Dai, and J. Yin, "Atomic (or molecular) guiding using a blue-detuned doughnut mode in a hollow metallic waveguide," Opt. Express. 13,8406-8423 (2005).
[CrossRef] [PubMed]

2003

J. Yin, W. Gao, and Y. Zhu, "Generation of dark hollow beams and their applications," Prog. Opt. 45, 119-204 (2003).
[CrossRef]

1998

J. Yin, Y. Zhu, W. Jhe, and Y. Wang, "Atom guiding and cooling in a dark hollow laser beam," Phys. Rev. A 58,509-513 (1998).
[CrossRef]

O. Morsch, and D. R. Meacher, "Proposal for an optical funnel trap," Opt. Commun. 148, 49-53 (1998).
[CrossRef]

Yu. B. Ovchinnikov, I. Manek, A. I. Sidorov, G. Wasik, and R. Grimm, "Gravito-optical atom trap based on a conical hollow beam," Europhys. Lett. 43,510-515 (1998).
[CrossRef]

1997

Yu. B. Ovchinnikov, I. Manek, and R. Grimm, "Surface trap for Cs atoms based on evanescent-wave cooling," Phys. Rev. Lett. 79, 2225-2228 (1997).
[CrossRef]

H. Ito, K. Sakaki, W. Jhe, and M. Ohtsu, "Evanescent-light induced atom-guidance using a hollow optical fiber with light coupled sideways," Opt. Commun. 141, 43-47 (1997).
[CrossRef]

1996

M. J. Renn, E. A. Donley, E. A. Cornell, C. E. Wieman, and D. Z. Anderson, "Evanescent-wave guiding of atoms in hollow optical fibers," Phys. Rev. A 53, R648-R651 (1996).
[CrossRef] [PubMed]

H. Ito, T. Nakata, K. Sakaki, M. Ohtsu, K. I. Lee, and W. Jhe, "Laser spectroscopy of atoms guiding by evanescent waves in micron-sided hollow optical fibers," Phys. Rev. Lett. 76, 4500-4503 (1996).
[CrossRef] [PubMed]

Anderson, D. Z.

M. J. Renn, E. A. Donley, E. A. Cornell, C. E. Wieman, and D. Z. Anderson, "Evanescent-wave guiding of atoms in hollow optical fibers," Phys. Rev. A 53, R648-R651 (1996).
[CrossRef] [PubMed]

Cornell, E. A.

M. J. Renn, E. A. Donley, E. A. Cornell, C. E. Wieman, and D. Z. Anderson, "Evanescent-wave guiding of atoms in hollow optical fibers," Phys. Rev. A 53, R648-R651 (1996).
[CrossRef] [PubMed]

Dai, M.

Z. Wang, M. Dai, and J. Yin, "Atomic (or molecular) guiding using a blue-detuned doughnut mode in a hollow metallic waveguide," Opt. Express. 13,8406-8423 (2005).
[CrossRef] [PubMed]

Donley, E. A.

M. J. Renn, E. A. Donley, E. A. Cornell, C. E. Wieman, and D. Z. Anderson, "Evanescent-wave guiding of atoms in hollow optical fibers," Phys. Rev. A 53, R648-R651 (1996).
[CrossRef] [PubMed]

Gao, W.

J. Yin, W. Gao, and Y. Zhu, "Generation of dark hollow beams and their applications," Prog. Opt. 45, 119-204 (2003).
[CrossRef]

Grimm, R.

Yu. B. Ovchinnikov, I. Manek, A. I. Sidorov, G. Wasik, and R. Grimm, "Gravito-optical atom trap based on a conical hollow beam," Europhys. Lett. 43,510-515 (1998).
[CrossRef]

Yu. B. Ovchinnikov, I. Manek, and R. Grimm, "Surface trap for Cs atoms based on evanescent-wave cooling," Phys. Rev. Lett. 79, 2225-2228 (1997).
[CrossRef]

Ito, H.

H. Ito, K. Sakaki, W. Jhe, and M. Ohtsu, "Evanescent-light induced atom-guidance using a hollow optical fiber with light coupled sideways," Opt. Commun. 141, 43-47 (1997).
[CrossRef]

H. Ito, T. Nakata, K. Sakaki, M. Ohtsu, K. I. Lee, and W. Jhe, "Laser spectroscopy of atoms guiding by evanescent waves in micron-sided hollow optical fibers," Phys. Rev. Lett. 76, 4500-4503 (1996).
[CrossRef] [PubMed]

Jhe, W.

J. Yin, Y. Zhu, W. Jhe, and Y. Wang, "Atom guiding and cooling in a dark hollow laser beam," Phys. Rev. A 58,509-513 (1998).
[CrossRef]

H. Ito, K. Sakaki, W. Jhe, and M. Ohtsu, "Evanescent-light induced atom-guidance using a hollow optical fiber with light coupled sideways," Opt. Commun. 141, 43-47 (1997).
[CrossRef]

H. Ito, T. Nakata, K. Sakaki, M. Ohtsu, K. I. Lee, and W. Jhe, "Laser spectroscopy of atoms guiding by evanescent waves in micron-sided hollow optical fibers," Phys. Rev. Lett. 76, 4500-4503 (1996).
[CrossRef] [PubMed]

Lee, K. I.

H. Ito, T. Nakata, K. Sakaki, M. Ohtsu, K. I. Lee, and W. Jhe, "Laser spectroscopy of atoms guiding by evanescent waves in micron-sided hollow optical fibers," Phys. Rev. Lett. 76, 4500-4503 (1996).
[CrossRef] [PubMed]

Manek, I.

Yu. B. Ovchinnikov, I. Manek, A. I. Sidorov, G. Wasik, and R. Grimm, "Gravito-optical atom trap based on a conical hollow beam," Europhys. Lett. 43,510-515 (1998).
[CrossRef]

Yu. B. Ovchinnikov, I. Manek, and R. Grimm, "Surface trap for Cs atoms based on evanescent-wave cooling," Phys. Rev. Lett. 79, 2225-2228 (1997).
[CrossRef]

Meacher, D. R.

O. Morsch, and D. R. Meacher, "Proposal for an optical funnel trap," Opt. Commun. 148, 49-53 (1998).
[CrossRef]

Morsch, O.

O. Morsch, and D. R. Meacher, "Proposal for an optical funnel trap," Opt. Commun. 148, 49-53 (1998).
[CrossRef]

Nakata, T.

H. Ito, T. Nakata, K. Sakaki, M. Ohtsu, K. I. Lee, and W. Jhe, "Laser spectroscopy of atoms guiding by evanescent waves in micron-sided hollow optical fibers," Phys. Rev. Lett. 76, 4500-4503 (1996).
[CrossRef] [PubMed]

Ohtsu, M.

H. Ito, K. Sakaki, W. Jhe, and M. Ohtsu, "Evanescent-light induced atom-guidance using a hollow optical fiber with light coupled sideways," Opt. Commun. 141, 43-47 (1997).
[CrossRef]

H. Ito, T. Nakata, K. Sakaki, M. Ohtsu, K. I. Lee, and W. Jhe, "Laser spectroscopy of atoms guiding by evanescent waves in micron-sided hollow optical fibers," Phys. Rev. Lett. 76, 4500-4503 (1996).
[CrossRef] [PubMed]

Ovchinnikov, Yu. B.

Yu. B. Ovchinnikov, I. Manek, A. I. Sidorov, G. Wasik, and R. Grimm, "Gravito-optical atom trap based on a conical hollow beam," Europhys. Lett. 43,510-515 (1998).
[CrossRef]

Yu. B. Ovchinnikov, I. Manek, and R. Grimm, "Surface trap for Cs atoms based on evanescent-wave cooling," Phys. Rev. Lett. 79, 2225-2228 (1997).
[CrossRef]

Renn, M. J.

M. J. Renn, E. A. Donley, E. A. Cornell, C. E. Wieman, and D. Z. Anderson, "Evanescent-wave guiding of atoms in hollow optical fibers," Phys. Rev. A 53, R648-R651 (1996).
[CrossRef] [PubMed]

Sakaki, K.

H. Ito, K. Sakaki, W. Jhe, and M. Ohtsu, "Evanescent-light induced atom-guidance using a hollow optical fiber with light coupled sideways," Opt. Commun. 141, 43-47 (1997).
[CrossRef]

H. Ito, T. Nakata, K. Sakaki, M. Ohtsu, K. I. Lee, and W. Jhe, "Laser spectroscopy of atoms guiding by evanescent waves in micron-sided hollow optical fibers," Phys. Rev. Lett. 76, 4500-4503 (1996).
[CrossRef] [PubMed]

Sidorov, A. I.

Yu. B. Ovchinnikov, I. Manek, A. I. Sidorov, G. Wasik, and R. Grimm, "Gravito-optical atom trap based on a conical hollow beam," Europhys. Lett. 43,510-515 (1998).
[CrossRef]

Wang, Y.

J. Yin, Y. Zhu, W. Jhe, and Y. Wang, "Atom guiding and cooling in a dark hollow laser beam," Phys. Rev. A 58,509-513 (1998).
[CrossRef]

Wang, Z.

Z. Wang, M. Dai, and J. Yin, "Atomic (or molecular) guiding using a blue-detuned doughnut mode in a hollow metallic waveguide," Opt. Express. 13,8406-8423 (2005).
[CrossRef] [PubMed]

Wasik, G.

Yu. B. Ovchinnikov, I. Manek, A. I. Sidorov, G. Wasik, and R. Grimm, "Gravito-optical atom trap based on a conical hollow beam," Europhys. Lett. 43,510-515 (1998).
[CrossRef]

Wieman, C. E.

M. J. Renn, E. A. Donley, E. A. Cornell, C. E. Wieman, and D. Z. Anderson, "Evanescent-wave guiding of atoms in hollow optical fibers," Phys. Rev. A 53, R648-R651 (1996).
[CrossRef] [PubMed]

Yin, J.

J. Yin, "Realization and research of optically-trapped quantum degenerate gases," Phys. Rep. 430,1-116 (2006).
[CrossRef]

Z. Wang, M. Dai, and J. Yin, "Atomic (or molecular) guiding using a blue-detuned doughnut mode in a hollow metallic waveguide," Opt. Express. 13,8406-8423 (2005).
[CrossRef] [PubMed]

J. Yin, W. Gao, and Y. Zhu, "Generation of dark hollow beams and their applications," Prog. Opt. 45, 119-204 (2003).
[CrossRef]

J. Yin, Y. Zhu, W. Jhe, and Y. Wang, "Atom guiding and cooling in a dark hollow laser beam," Phys. Rev. A 58,509-513 (1998).
[CrossRef]

Zhu, Y.

J. Yin, W. Gao, and Y. Zhu, "Generation of dark hollow beams and their applications," Prog. Opt. 45, 119-204 (2003).
[CrossRef]

J. Yin, Y. Zhu, W. Jhe, and Y. Wang, "Atom guiding and cooling in a dark hollow laser beam," Phys. Rev. A 58,509-513 (1998).
[CrossRef]

Europhys. Lett.

Yu. B. Ovchinnikov, I. Manek, A. I. Sidorov, G. Wasik, and R. Grimm, "Gravito-optical atom trap based on a conical hollow beam," Europhys. Lett. 43,510-515 (1998).
[CrossRef]

Opt. Commun.

O. Morsch, and D. R. Meacher, "Proposal for an optical funnel trap," Opt. Commun. 148, 49-53 (1998).
[CrossRef]

H. Ito, K. Sakaki, W. Jhe, and M. Ohtsu, "Evanescent-light induced atom-guidance using a hollow optical fiber with light coupled sideways," Opt. Commun. 141, 43-47 (1997).
[CrossRef]

Opt. Express.

Z. Wang, M. Dai, and J. Yin, "Atomic (or molecular) guiding using a blue-detuned doughnut mode in a hollow metallic waveguide," Opt. Express. 13,8406-8423 (2005).
[CrossRef] [PubMed]

Phys. Rep.

J. Yin, "Realization and research of optically-trapped quantum degenerate gases," Phys. Rep. 430,1-116 (2006).
[CrossRef]

Phys. Rev. A

J. Yin, Y. Zhu, W. Jhe, and Y. Wang, "Atom guiding and cooling in a dark hollow laser beam," Phys. Rev. A 58,509-513 (1998).
[CrossRef]

M. J. Renn, E. A. Donley, E. A. Cornell, C. E. Wieman, and D. Z. Anderson, "Evanescent-wave guiding of atoms in hollow optical fibers," Phys. Rev. A 53, R648-R651 (1996).
[CrossRef] [PubMed]

Phys. Rev. Lett.

H. Ito, T. Nakata, K. Sakaki, M. Ohtsu, K. I. Lee, and W. Jhe, "Laser spectroscopy of atoms guiding by evanescent waves in micron-sided hollow optical fibers," Phys. Rev. Lett. 76, 4500-4503 (1996).
[CrossRef] [PubMed]

Yu. B. Ovchinnikov, I. Manek, and R. Grimm, "Surface trap for Cs atoms based on evanescent-wave cooling," Phys. Rev. Lett. 79, 2225-2228 (1997).
[CrossRef]

Prog. Opt.

J. Yin, W. Gao, and Y. Zhu, "Generation of dark hollow beams and their applications," Prog. Opt. 45, 119-204 (2003).
[CrossRef]

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Figures (4)

Fig. 1.
Fig. 1.

Scheme of the atomic guiding and cooling.

Fig. 2.
Fig. 2.

(a) The time evolution of p rms for different detuning as P 1=1W, P 2=0.2W; (b) The final equilibrium temperature of atoms versus the detuning for P 1=1W and P 2=0.2W.

Fig. 3.
Fig. 3.

(a) The time evolution of p rms for the different P 2, P 1=1W, δ/2π=3.0GHz; (b) The final equilibrium temperature and the relative atomic loss versus P 2.

Fig. 4.
Fig. 4.

(a) The time evolution of the final momentum p z (p y) of cold atoms; (b) Atomic average trajectory in the y-z plane as the initial z-directional momentum of atoms is 40ħk.

Equations (8)

Equations on this page are rendered with MathJax. Learn more.

E 1 ( r , ϕ , z ) = E 01 exp ( i ϕ ) exp [ i ( ω t k z ) ] ,
E 2 ( r , ϕ , z ) = E 02 exp ( i ϕ ) exp [ i ( ω t + k z ) ] ,
E 01 = P 1 π 2 r w 2 exp ( r 2 w 2 ) , E 02 = P 2 π 2 r w 2 exp ( r 2 w 2 ) ,
I = E 01 2 + E 02 2 + 2 E 01 E 02 cos ( 2 k z ) .
U 1 = δ 4 Ω 1 4 + ( Ω 1 2 + δ 2 ) 2 + Ω 1 2 2 ,
U 2 = δ 4 Ω 1 4 δ h f s 2 + ( Ω 1 2 + δ 2 + δ h f s ) 2 + Ω 2 2 2 .
U 3 = U 1 U 2 .
1 3 δ h f s δ + δ h f s ( p r m s k ) 2 + 1 q r 2 + 1 1 q i = 0 .

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