Abstract

We report on the demonstration of Doppler-free polarization spectroscopy of the D2 line of Li6 atoms. Counterintuitively, the presence of an Ar buffer gas, in a certain pressure range, causes a drastic enhancement of the polarization rotation signal. The observed dependence of the signal amplitude on the Ar buffer pressure and the pump laser power is reproduced by calculations based on simple rate equations. We performed stable laser frequency locking using a dispersion signal obtained by polarization spectroscopy for laser cooling of Li6 atoms.

© 2012 Optical Society of America

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  1. E. A. Cornell and C. E. Wieman, Rev. Mod. Phys. 74, 875 (2002).
    [CrossRef]
  2. W. Ketterle, Rev. Mod. Phys. 74, 1131 (2002).
    [CrossRef]
  3. W. Ketterle and M. W. Zwierlein, arXiv:0801.2500v1 (2008).
  4. K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, and W. Ketterle, Phys. Rev. Lett. 89, 203201 (2002).
    [CrossRef]
  5. M. Aymar and O. Dulieu, J. Chem. Phys. 122, 204302 (2005).
    [CrossRef]
  6. H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
    [CrossRef]
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    [CrossRef]
  8. K. L. Corwin, Z. T. Lu, C. F. Hand, R. J. Epstein, and C. E. Wieman, Appl. Opt. 37, 3295 (1998).
    [CrossRef]
  9. C. Wieman and T. W. Hänsch, Phys. Rev. Lett. 36, 1170 (1976).
    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
  15. For the cooling transition, the atoms that are spin polarized by the σ+ (σ−) pump beam interact predominantly with the σ+ (σ−) component of the probe beam if the saturation effect due to the pump beam is neglected. See, for example, [10].

2007 (1)

H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
[CrossRef]

2006 (1)

M. L. Harris, C. S. Adams, S. L. Cornish, I. C. McLeod, E. Tarleton, and I. G. Hughes, Phys. Rev. A 73, 062509 (2006).
[CrossRef]

2005 (1)

M. Aymar and O. Dulieu, J. Chem. Phys. 122, 204302 (2005).
[CrossRef]

2003 (1)

2002 (4)

C. P. Pearman, C. S. Adams, S. G. Cox, P. F. Griffin, D. A. Smith, and I. G. Hughes, J. Phys. B At. Mol. Opt. Phys. 35, 5141 (2002).
[CrossRef]

E. A. Cornell and C. E. Wieman, Rev. Mod. Phys. 74, 875 (2002).
[CrossRef]

W. Ketterle, Rev. Mod. Phys. 74, 1131 (2002).
[CrossRef]

K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, and W. Ketterle, Phys. Rev. Lett. 89, 203201 (2002).
[CrossRef]

1998 (2)

1983 (1)

G. C. Bjorklund, M. D. Levenson, W. Lenth, and C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

1976 (1)

C. Wieman and T. W. Hänsch, Phys. Rev. Lett. 36, 1170 (1976).
[CrossRef]

Adams, C. S.

M. L. Harris, C. S. Adams, S. L. Cornish, I. C. McLeod, E. Tarleton, and I. G. Hughes, Phys. Rev. A 73, 062509 (2006).
[CrossRef]

C. P. Pearman, C. S. Adams, S. G. Cox, P. F. Griffin, D. A. Smith, and I. G. Hughes, J. Phys. B At. Mol. Opt. Phys. 35, 5141 (2002).
[CrossRef]

Aymar, M.

M. Aymar and O. Dulieu, J. Chem. Phys. 122, 204302 (2005).
[CrossRef]

Bjorklund, G. C.

G. C. Bjorklund, M. D. Levenson, W. Lenth, and C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

Buchler, H. P.

H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
[CrossRef]

Budker, D.

D. Budker, D. Kimball, and D. De Mille, Atomic Physics, 2nd ed. (Oxford, 2008).

Cornell, E. A.

E. A. Cornell and C. E. Wieman, Rev. Mod. Phys. 74, 875 (2002).
[CrossRef]

Cornish, S. L.

M. L. Harris, C. S. Adams, S. L. Cornish, I. C. McLeod, E. Tarleton, and I. G. Hughes, Phys. Rev. A 73, 062509 (2006).
[CrossRef]

Corwin, K. L.

Cox, S. G.

C. P. Pearman, C. S. Adams, S. G. Cox, P. F. Griffin, D. A. Smith, and I. G. Hughes, J. Phys. B At. Mol. Opt. Phys. 35, 5141 (2002).
[CrossRef]

De Mille, D.

D. Budker, D. Kimball, and D. De Mille, Atomic Physics, 2nd ed. (Oxford, 2008).

Demler, E.

H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
[CrossRef]

Dieckmann, K.

K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, and W. Ketterle, Phys. Rev. Lett. 89, 203201 (2002).
[CrossRef]

Dinklage, A.

Duarte, A. E.

Duarte, F. J.

Dulieu, O.

M. Aymar and O. Dulieu, J. Chem. Phys. 122, 204302 (2005).
[CrossRef]

Epstein, R. J.

Griffin, P. F.

C. P. Pearman, C. S. Adams, S. G. Cox, P. F. Griffin, D. A. Smith, and I. G. Hughes, J. Phys. B At. Mol. Opt. Phys. 35, 5141 (2002).
[CrossRef]

Gupta, S.

K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, and W. Ketterle, Phys. Rev. Lett. 89, 203201 (2002).
[CrossRef]

Hadzibabic, Z.

K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, and W. Ketterle, Phys. Rev. Lett. 89, 203201 (2002).
[CrossRef]

Hand, C. F.

Hänsch, T. W.

C. Wieman and T. W. Hänsch, Phys. Rev. Lett. 36, 1170 (1976).
[CrossRef]

Harris, M. L.

M. L. Harris, C. S. Adams, S. L. Cornish, I. C. McLeod, E. Tarleton, and I. G. Hughes, Phys. Rev. A 73, 062509 (2006).
[CrossRef]

Hughes, I. G.

M. L. Harris, C. S. Adams, S. L. Cornish, I. C. McLeod, E. Tarleton, and I. G. Hughes, Phys. Rev. A 73, 062509 (2006).
[CrossRef]

C. P. Pearman, C. S. Adams, S. G. Cox, P. F. Griffin, D. A. Smith, and I. G. Hughes, J. Phys. B At. Mol. Opt. Phys. 35, 5141 (2002).
[CrossRef]

Ketterle, W.

K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, and W. Ketterle, Phys. Rev. Lett. 89, 203201 (2002).
[CrossRef]

W. Ketterle, Rev. Mod. Phys. 74, 1131 (2002).
[CrossRef]

W. Ketterle and M. W. Zwierlein, arXiv:0801.2500v1 (2008).

Kimball, D.

D. Budker, D. Kimball, and D. De Mille, Atomic Physics, 2nd ed. (Oxford, 2008).

Kuga, T.

Lenth, W.

G. C. Bjorklund, M. D. Levenson, W. Lenth, and C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

Levenson, M. D.

G. C. Bjorklund, M. D. Levenson, W. Lenth, and C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

Lokajczyk, T.

Lu, Z. T.

Lukin, M.

H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
[CrossRef]

McLeod, I. C.

M. L. Harris, C. S. Adams, S. L. Cornish, I. C. McLeod, E. Tarleton, and I. G. Hughes, Phys. Rev. A 73, 062509 (2006).
[CrossRef]

Micheli, A.

H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
[CrossRef]

Mukae, T.

Olivares, I. E.

Ortiz, C.

G. C. Bjorklund, M. D. Levenson, W. Lenth, and C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

Pearman, C. P.

C. P. Pearman, C. S. Adams, S. G. Cox, P. F. Griffin, D. A. Smith, and I. G. Hughes, J. Phys. B At. Mol. Opt. Phys. 35, 5141 (2002).
[CrossRef]

Prokof’ev, N.

H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
[CrossRef]

Pupillo, G.

H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
[CrossRef]

Schunck, C. H.

K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, and W. Ketterle, Phys. Rev. Lett. 89, 203201 (2002).
[CrossRef]

Smith, D. A.

C. P. Pearman, C. S. Adams, S. G. Cox, P. F. Griffin, D. A. Smith, and I. G. Hughes, J. Phys. B At. Mol. Opt. Phys. 35, 5141 (2002).
[CrossRef]

Stan, C. A.

K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, and W. Ketterle, Phys. Rev. Lett. 89, 203201 (2002).
[CrossRef]

Tarleton, E.

M. L. Harris, C. S. Adams, S. L. Cornish, I. C. McLeod, E. Tarleton, and I. G. Hughes, Phys. Rev. A 73, 062509 (2006).
[CrossRef]

Torii, Y.

Umeki, T.

Wieman, C.

C. Wieman and T. W. Hänsch, Phys. Rev. Lett. 36, 1170 (1976).
[CrossRef]

Wieman, C. E.

Yoshikawa, Y.

Zoller, P.

H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
[CrossRef]

Zwierlein, M. W.

W. Ketterle and M. W. Zwierlein, arXiv:0801.2500v1 (2008).

Appl. Opt. (2)

Appl. Phys. B (1)

G. C. Bjorklund, M. D. Levenson, W. Lenth, and C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

J. Chem. Phys. (1)

M. Aymar and O. Dulieu, J. Chem. Phys. 122, 204302 (2005).
[CrossRef]

J. Opt. Soc. Am. B (1)

J. Phys. B At. Mol. Opt. Phys. (1)

C. P. Pearman, C. S. Adams, S. G. Cox, P. F. Griffin, D. A. Smith, and I. G. Hughes, J. Phys. B At. Mol. Opt. Phys. 35, 5141 (2002).
[CrossRef]

Phys. Rev. A (1)

M. L. Harris, C. S. Adams, S. L. Cornish, I. C. McLeod, E. Tarleton, and I. G. Hughes, Phys. Rev. A 73, 062509 (2006).
[CrossRef]

Phys. Rev. Lett. (3)

H. P. Buchler, E. Demler, M. Lukin, A. Micheli, N. Prokof’ev, G. Pupillo, and P. Zoller, Phys. Rev. Lett. 98, 4 (2007).
[CrossRef]

K. Dieckmann, C. A. Stan, S. Gupta, Z. Hadzibabic, C. H. Schunck, and W. Ketterle, Phys. Rev. Lett. 89, 203201 (2002).
[CrossRef]

C. Wieman and T. W. Hänsch, Phys. Rev. Lett. 36, 1170 (1976).
[CrossRef]

Rev. Mod. Phys. (2)

E. A. Cornell and C. E. Wieman, Rev. Mod. Phys. 74, 875 (2002).
[CrossRef]

W. Ketterle, Rev. Mod. Phys. 74, 1131 (2002).
[CrossRef]

Other (3)

W. Ketterle and M. W. Zwierlein, arXiv:0801.2500v1 (2008).

For the cooling transition, the atoms that are spin polarized by the σ+ (σ−) pump beam interact predominantly with the σ+ (σ−) component of the probe beam if the saturation effect due to the pump beam is neglected. See, for example, [10].

D. Budker, D. Kimball, and D. De Mille, Atomic Physics, 2nd ed. (Oxford, 2008).

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Figures (3)

Fig. 1.
Fig. 1.

(a) Relevant Li6 energy levels. (b) Schematic diagram of the experimental setup. PBS, polarization beam splitter; NPBS, nonpolarization beam splitter; λ/2, half-wave plate; λ/4, quarter-wave plate; ND filter, neutral density filter.

Fig. 2.
Fig. 2.

Doppler-free polarization spectra of the 2S1/22P3/2 transitions of Li6 at zero and 100 mTorr Ar buffer gas pressures for (a) a weak (50 μW) and (b) a strong (500 μW) pump power.

Fig. 3.
Fig. 3.

Dependence of the dispersion signal at the cooling transition on the pump power. The vertical axis represents the peak-to-peak amplitude of the dispersion signal. The open triangles and the solid circles represent the experimental data at zero and 100 mTorr Ar buffer gas pressures, respectively. The solid curve and the dashed curve show calculations for each condition.

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