Abstract

The isotope selectivity of the strontium (Sr) magneto-optical trap (MOT) is measured by a time-of-flight (TOF) mass spectrometer. The thermally generated Sr atoms are slowed down by the Zeeman slowing technique and trapped by the magneto-optical method. The trapped atoms are photoionized by the nonresonant two-photon ionization, and the generated ions are analyzed by the TOF mass spectrometer. The isotope selectivity of the MOT is up to approximately 2000 for Sr86, and the overall selectivity of the system, which consists of the MOT and the mass spectrometer is also discussed.

© 2006 Optical Society of America

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  1. X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
    [CrossRef]
  2. I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
    [CrossRef] [PubMed]
  3. K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).
  4. F. Buchinger, R. Corrivean, E. B. Ramsay, D. Berdichevsky, and D. W. L. Sprung, 'Influence of the N=50 shell closure on mean square charge radii of strontium,' Phys. Rev. C 32, 2058-2066 (1985).
    [CrossRef]
  5. S. Hoekstra, C. van Ditzhuijzen, J. Mulder, R. Morgenstern, and R. Hoekstra, 'Ultrasensitive atom trap trace analysis of 41Ca,' presented at the Laser and Probing Conference, Leuven, Belgium, July 7-12, 2002.
  6. C. Y. Chen, Y. M. Li, K. Bailey, T. P. O'Connor, L. Young, and Z.-T. Lu, 'Ultrasensitive isotope trace analyses with a magneto-optical trap,' Science 286, 1139-1141 (1999).
    [CrossRef] [PubMed]
  7. C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
    [CrossRef] [PubMed]
  8. T. C. Killian, S. Kulin, S. D. Bergeson, L. A. Orozco, C. Orzel, and S. L. Rolston, 'Creation of an ultracold neutral plasma,' Phys. Rev. Lett. 83, 4776-4779 (1999).
    [CrossRef]
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    [CrossRef] [PubMed]
  10. Y. Bidel, B. Klappauf, J. C. Bernard, D. Delande, G. Labeyrie, and C. Miniatura, 'Coherent light transport in cold strontium cloud,' Phys. Rev. Lett. 88, 203902 (2002).
    [CrossRef] [PubMed]
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    [CrossRef]
  14. K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, H. K. Cha, and Y. K. Lim, 'Investigation of isotope selective characteristics of the strontium magneto-optical trap by the fluorescence detection,' J. Opt. Soc. Korea 9, 87-91 (2005).
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    [CrossRef] [PubMed]
  18. H. Katori, T. Ido, Y. Isoya, and M.-K. Gonokami, 'Magneto-optical trapping and cooling of strontium atoms down to the photon recoil temperature,' Phys. Rev. Lett. 82, 1116-1119 (1999).
    [CrossRef]
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    [CrossRef]
  20. M. Sankari, P. V. K. Kumar, and M. V. Suryanarayana, 'Investigations on the 1S0-->1P1--1S0-->M+ photoionization pathway for selective ionization of rare calcium and strontium isotopes,' J. Opt. Soc. Am. B 21, 1369-1378 (2004).
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  21. B. A. Bushaw and W. Nortershauser, 'Resonance ionization spectroscopy of stable strontium isotopes and 90Sr via 5s21S0-->5s5p1P1-->5s5d 1D2-->5s11f1F3-->Sr+,' Spectrochim. Acta Part B 55, 1679-1692 (2000).
    [CrossRef]

2006

M. Yasuda, T. Kishimoto, M. Takamoto, and H. Katori, 'Photoassociation spectroscopy of 88Sr: reconstruction of the wave function near the laser node,' Phys. Rev. A 73, 011403 (2006).
[CrossRef]

2005

2004

M. Sankari, P. V. K. Kumar, and M. V. Suryanarayana, 'Investigations on the 1S0-->1P1--1S0-->M+ photoionization pathway for selective ionization of rare calcium and strontium isotopes,' J. Opt. Soc. Am. B 21, 1369-1378 (2004).
[CrossRef]

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

2003

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

T. Mukaiyama, H. Katori, T. Ido, Y. Li, and M.-K. Gonokami, 'Recoil-limited laser cooling of 87Sr atoms near the Fermi temperature,' Phys. Rev. Lett. 90, 113002 (2003).
[CrossRef] [PubMed]

2002

Y. Bidel, B. Klappauf, J. C. Bernard, D. Delande, G. Labeyrie, and C. Miniatura, 'Coherent light transport in cold strontium cloud,' Phys. Rev. Lett. 88, 203902 (2002).
[CrossRef] [PubMed]

2000

B. A. Bushaw and W. Nortershauser, 'Resonance ionization spectroscopy of stable strontium isotopes and 90Sr via 5s21S0-->5s5p1P1-->5s5d 1D2-->5s11f1F3-->Sr+,' Spectrochim. Acta Part B 55, 1679-1692 (2000).
[CrossRef]

N. Kjaergaard, L. Hornekaer, A. M. Thommesen, Z. Videsen, and M. Drewsen, 'Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization,' Appl. Phys. B 71, 207-210 (2000).
[CrossRef]

1999

H. Katori, T. Ido, Y. Isoya, and M.-K. Gonokami, 'Magneto-optical trapping and cooling of strontium atoms down to the photon recoil temperature,' Phys. Rev. Lett. 82, 1116-1119 (1999).
[CrossRef]

T. C. Killian, S. Kulin, S. D. Bergeson, L. A. Orozco, C. Orzel, and S. L. Rolston, 'Creation of an ultracold neutral plasma,' Phys. Rev. Lett. 83, 4776-4779 (1999).
[CrossRef]

C. Y. Chen, Y. M. Li, K. Bailey, T. P. O'Connor, L. Young, and Z.-T. Lu, 'Ultrasensitive isotope trace analyses with a magneto-optical trap,' Science 286, 1139-1141 (1999).
[CrossRef] [PubMed]

1997

B. A. Bushaw and B. D. Cannon, 'Diode laser based resonance ionization mass spectrometric measurement of strontium-90,' Spectrochim. Acta Part B 52, 1839-1854 (1997).
[CrossRef]

1996

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

1985

F. Buchinger, R. Corrivean, E. B. Ramsay, D. Berdichevsky, and D. W. L. Sprung, 'Influence of the N=50 shell closure on mean square charge radii of strontium,' Phys. Rev. C 32, 2058-2066 (1985).
[CrossRef]

1955

W. C. Wiley and I. H. McLaren, 'Time-of-flight mass spectrometer with improved resolution,' Rev. Sci. Instrum. 26, 1150-1157 (1955).
[CrossRef]

Bailey, K.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

C. Y. Chen, Y. M. Li, K. Bailey, T. P. O'Connor, L. Young, and Z.-T. Lu, 'Ultrasensitive isotope trace analyses with a magneto-optical trap,' Science 286, 1139-1141 (1999).
[CrossRef] [PubMed]

Berdichevsky, D.

F. Buchinger, R. Corrivean, E. B. Ramsay, D. Berdichevsky, and D. W. L. Sprung, 'Influence of the N=50 shell closure on mean square charge radii of strontium,' Phys. Rev. C 32, 2058-2066 (1985).
[CrossRef]

Bergeson, S. D.

T. C. Killian, S. Kulin, S. D. Bergeson, L. A. Orozco, C. Orzel, and S. L. Rolston, 'Creation of an ultracold neutral plasma,' Phys. Rev. Lett. 83, 4776-4779 (1999).
[CrossRef]

Bernard, J. C.

Y. Bidel, B. Klappauf, J. C. Bernard, D. Delande, G. Labeyrie, and C. Miniatura, 'Coherent light transport in cold strontium cloud,' Phys. Rev. Lett. 88, 203902 (2002).
[CrossRef] [PubMed]

Bidel, Y.

Y. Bidel, B. Klappauf, J. C. Bernard, D. Delande, G. Labeyrie, and C. Miniatura, 'Coherent light transport in cold strontium cloud,' Phys. Rev. Lett. 88, 203902 (2002).
[CrossRef] [PubMed]

Buchinger, F.

F. Buchinger, R. Corrivean, E. B. Ramsay, D. Berdichevsky, and D. W. L. Sprung, 'Influence of the N=50 shell closure on mean square charge radii of strontium,' Phys. Rev. C 32, 2058-2066 (1985).
[CrossRef]

Bushaw, B. A.

B. A. Bushaw and W. Nortershauser, 'Resonance ionization spectroscopy of stable strontium isotopes and 90Sr via 5s21S0-->5s5p1P1-->5s5d 1D2-->5s11f1F3-->Sr+,' Spectrochim. Acta Part B 55, 1679-1692 (2000).
[CrossRef]

B. A. Bushaw and B. D. Cannon, 'Diode laser based resonance ionization mass spectrometric measurement of strontium-90,' Spectrochim. Acta Part B 52, 1839-1854 (1997).
[CrossRef]

Cannon, B. D.

B. A. Bushaw and B. D. Cannon, 'Diode laser based resonance ionization mass spectrometric measurement of strontium-90,' Spectrochim. Acta Part B 52, 1839-1854 (1997).
[CrossRef]

Cha, H. K.

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, H. K. Cha, and Y. K. Lim, 'Investigation of isotope selective characteristics of the strontium magneto-optical trap by the fluorescence detection,' J. Opt. Soc. Korea 9, 87-91 (2005).
[CrossRef]

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, D. H. Kim, H. K. Cha, and Y. K. Kim, 'Noble method for the strontium analysis based on the atom trap followed by the mass spectrometer,' presented at the 13th International Symposium on Laser Spectroscopy, Daejeon, Korea, November 3-4, 2005.

Cha, Y. H.

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, H. K. Cha, and Y. K. Lim, 'Investigation of isotope selective characteristics of the strontium magneto-optical trap by the fluorescence detection,' J. Opt. Soc. Korea 9, 87-91 (2005).
[CrossRef]

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, D. H. Kim, H. K. Cha, and Y. K. Kim, 'Noble method for the strontium analysis based on the atom trap followed by the mass spectrometer,' presented at the 13th International Symposium on Laser Spectroscopy, Daejeon, Korea, November 3-4, 2005.

Chen, C. Y.

C. Y. Chen, Y. M. Li, K. Bailey, T. P. O'Connor, L. Young, and Z.-T. Lu, 'Ultrasensitive isotope trace analyses with a magneto-optical trap,' Science 286, 1139-1141 (1999).
[CrossRef] [PubMed]

Chen, Y. C.

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

Choi, K. S.

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

Choi, Y. H.

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

Corrivean, R.

F. Buchinger, R. Corrivean, E. B. Ramsay, D. Berdichevsky, and D. W. L. Sprung, 'Influence of the N=50 shell closure on mean square charge radii of strontium,' Phys. Rev. C 32, 2058-2066 (1985).
[CrossRef]

Delande, D.

Y. Bidel, B. Klappauf, J. C. Bernard, D. Delande, G. Labeyrie, and C. Miniatura, 'Coherent light transport in cold strontium cloud,' Phys. Rev. Lett. 88, 203902 (2002).
[CrossRef] [PubMed]

Drewsen, M.

N. Kjaergaard, L. Hornekaer, A. M. Thommesen, Z. Videsen, and M. Drewsen, 'Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization,' Appl. Phys. B 71, 207-210 (2000).
[CrossRef]

Du, X.

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

Geppert, Ch.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

Gonokami, M.-K.

T. Mukaiyama, H. Katori, T. Ido, Y. Li, and M.-K. Gonokami, 'Recoil-limited laser cooling of 87Sr atoms near the Fermi temperature,' Phys. Rev. Lett. 90, 113002 (2003).
[CrossRef] [PubMed]

H. Katori, T. Ido, Y. Isoya, and M.-K. Gonokami, 'Magneto-optical trapping and cooling of strontium atoms down to the photon recoil temperature,' Phys. Rev. Lett. 82, 1116-1119 (1999).
[CrossRef]

Greene, J.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

Gupta, P.

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

Hoekstra, R.

S. Hoekstra, C. van Ditzhuijzen, J. Mulder, R. Morgenstern, and R. Hoekstra, 'Ultrasensitive atom trap trace analysis of 41Ca,' presented at the Laser and Probing Conference, Leuven, Belgium, July 7-12, 2002.

Hoekstra, S.

S. Hoekstra, C. van Ditzhuijzen, J. Mulder, R. Morgenstern, and R. Hoekstra, 'Ultrasensitive atom trap trace analysis of 41Ca,' presented at the Laser and Probing Conference, Leuven, Belgium, July 7-12, 2002.

Hong, K. H.

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

Hornekaer, L.

N. Kjaergaard, L. Hornekaer, A. M. Thommesen, Z. Videsen, and M. Drewsen, 'Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization,' Appl. Phys. B 71, 207-210 (2000).
[CrossRef]

Ido, T.

T. Mukaiyama, H. Katori, T. Ido, Y. Li, and M.-K. Gonokami, 'Recoil-limited laser cooling of 87Sr atoms near the Fermi temperature,' Phys. Rev. Lett. 90, 113002 (2003).
[CrossRef] [PubMed]

H. Katori, T. Ido, Y. Isoya, and M.-K. Gonokami, 'Magneto-optical trapping and cooling of strontium atoms down to the photon recoil temperature,' Phys. Rev. Lett. 82, 1116-1119 (1999).
[CrossRef]

Isoya, Y.

H. Katori, T. Ido, Y. Isoya, and M.-K. Gonokami, 'Magneto-optical trapping and cooling of strontium atoms down to the photon recoil temperature,' Phys. Rev. Lett. 82, 1116-1119 (1999).
[CrossRef]

Jeong, D. Y.

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, H. K. Cha, and Y. K. Lim, 'Investigation of isotope selective characteristics of the strontium magneto-optical trap by the fluorescence detection,' J. Opt. Soc. Korea 9, 87-91 (2005).
[CrossRef]

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, D. H. Kim, H. K. Cha, and Y. K. Kim, 'Noble method for the strontium analysis based on the atom trap followed by the mass spectrometer,' presented at the 13th International Symposium on Laser Spectroscopy, Daejeon, Korea, November 3-4, 2005.

Katori, H.

M. Yasuda, T. Kishimoto, M. Takamoto, and H. Katori, 'Photoassociation spectroscopy of 88Sr: reconstruction of the wave function near the laser node,' Phys. Rev. A 73, 011403 (2006).
[CrossRef]

T. Mukaiyama, H. Katori, T. Ido, Y. Li, and M.-K. Gonokami, 'Recoil-limited laser cooling of 87Sr atoms near the Fermi temperature,' Phys. Rev. Lett. 90, 113002 (2003).
[CrossRef] [PubMed]

H. Katori, T. Ido, Y. Isoya, and M.-K. Gonokami, 'Magneto-optical trapping and cooling of strontium atoms down to the photon recoil temperature,' Phys. Rev. Lett. 82, 1116-1119 (1999).
[CrossRef]

Killian, T. C.

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

T. C. Killian, S. Kulin, S. D. Bergeson, L. A. Orozco, C. Orzel, and S. L. Rolston, 'Creation of an ultracold neutral plasma,' Phys. Rev. Lett. 83, 4776-4779 (1999).
[CrossRef]

Kim, D. H.

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, D. H. Kim, H. K. Cha, and Y. K. Kim, 'Noble method for the strontium analysis based on the atom trap followed by the mass spectrometer,' presented at the 13th International Symposium on Laser Spectroscopy, Daejeon, Korea, November 3-4, 2005.

Kim, S. B.

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

Kim, S. R.

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

Kim, T. S.

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, H. K. Cha, and Y. K. Lim, 'Investigation of isotope selective characteristics of the strontium magneto-optical trap by the fluorescence detection,' J. Opt. Soc. Korea 9, 87-91 (2005).
[CrossRef]

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, D. H. Kim, H. K. Cha, and Y. K. Kim, 'Noble method for the strontium analysis based on the atom trap followed by the mass spectrometer,' presented at the 13th International Symposium on Laser Spectroscopy, Daejeon, Korea, November 3-4, 2005.

Kim, Y. K.

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, D. H. Kim, H. K. Cha, and Y. K. Kim, 'Noble method for the strontium analysis based on the atom trap followed by the mass spectrometer,' presented at the 13th International Symposium on Laser Spectroscopy, Daejeon, Korea, November 3-4, 2005.

Kishimoto, T.

M. Yasuda, T. Kishimoto, M. Takamoto, and H. Katori, 'Photoassociation spectroscopy of 88Sr: reconstruction of the wave function near the laser node,' Phys. Rev. A 73, 011403 (2006).
[CrossRef]

Kjaergaard, N.

N. Kjaergaard, L. Hornekaer, A. M. Thommesen, Z. Videsen, and M. Drewsen, 'Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization,' Appl. Phys. B 71, 207-210 (2000).
[CrossRef]

Klappauf, B.

Y. Bidel, B. Klappauf, J. C. Bernard, D. Delande, G. Labeyrie, and C. Miniatura, 'Coherent light transport in cold strontium cloud,' Phys. Rev. Lett. 88, 203902 (2002).
[CrossRef] [PubMed]

Ko, K. H.

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, H. K. Cha, and Y. K. Lim, 'Investigation of isotope selective characteristics of the strontium magneto-optical trap by the fluorescence detection,' J. Opt. Soc. Korea 9, 87-91 (2005).
[CrossRef]

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, D. H. Kim, H. K. Cha, and Y. K. Kim, 'Noble method for the strontium analysis based on the atom trap followed by the mass spectrometer,' presented at the 13th International Symposium on Laser Spectroscopy, Daejeon, Korea, November 3-4, 2005.

Kulin, S.

T. C. Killian, S. Kulin, S. D. Bergeson, L. A. Orozco, C. Orzel, and S. L. Rolston, 'Creation of an ultracold neutral plasma,' Phys. Rev. Lett. 83, 4776-4779 (1999).
[CrossRef]

Kumar, P. V. K.

Labeyrie, G.

Y. Bidel, B. Klappauf, J. C. Bernard, D. Delande, G. Labeyrie, and C. Miniatura, 'Coherent light transport in cold strontium cloud,' Phys. Rev. Lett. 88, 203902 (2002).
[CrossRef] [PubMed]

Laha, S.

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

Lee, C. W.

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

Lee, M. H.

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

Lehmann, B. E.

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

Li, Y.

T. Mukaiyama, H. Katori, T. Ido, Y. Li, and M.-K. Gonokami, 'Recoil-limited laser cooling of 87Sr atoms near the Fermi temperature,' Phys. Rev. Lett. 90, 113002 (2003).
[CrossRef] [PubMed]

Li, Y. M.

C. Y. Chen, Y. M. Li, K. Bailey, T. P. O'Connor, L. Young, and Z.-T. Lu, 'Ultrasensitive isotope trace analyses with a magneto-optical trap,' Science 286, 1139-1141 (1999).
[CrossRef] [PubMed]

Lim, G.

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, H. K. Cha, and Y. K. Lim, 'Investigation of isotope selective characteristics of the strontium magneto-optical trap by the fluorescence detection,' J. Opt. Soc. Korea 9, 87-91 (2005).
[CrossRef]

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, D. H. Kim, H. K. Cha, and Y. K. Kim, 'Noble method for the strontium analysis based on the atom trap followed by the mass spectrometer,' presented at the 13th International Symposium on Laser Spectroscopy, Daejeon, Korea, November 3-4, 2005.

Lim, Y. K.

Lorenzo, R.

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

Lu, Z. T.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

Lu, Z.-T.

C. Y. Chen, Y. M. Li, K. Bailey, T. P. O'Connor, L. Young, and Z.-T. Lu, 'Ultrasensitive isotope trace analyses with a magneto-optical trap,' Science 286, 1139-1141 (1999).
[CrossRef] [PubMed]

Martinez, Y. N.

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

McLaren, I. H.

W. C. Wiley and I. H. McLaren, 'Time-of-flight mass spectrometer with improved resolution,' Rev. Sci. Instrum. 26, 1150-1157 (1955).
[CrossRef]

Mickelson, P. G.

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

Miniatura, C.

Y. Bidel, B. Klappauf, J. C. Bernard, D. Delande, G. Labeyrie, and C. Miniatura, 'Coherent light transport in cold strontium cloud,' Phys. Rev. Lett. 88, 203902 (2002).
[CrossRef] [PubMed]

Moore, I. D.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

Morgenstern, R.

S. Hoekstra, C. van Ditzhuijzen, J. Mulder, R. Morgenstern, and R. Hoekstra, 'Ultrasensitive atom trap trace analysis of 41Ca,' presented at the Laser and Probing Conference, Leuven, Belgium, July 7-12, 2002.

Mueller, P.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

Mukaiyama, T.

T. Mukaiyama, H. Katori, T. Ido, Y. Li, and M.-K. Gonokami, 'Recoil-limited laser cooling of 87Sr atoms near the Fermi temperature,' Phys. Rev. Lett. 90, 113002 (2003).
[CrossRef] [PubMed]

Mulder, J.

S. Hoekstra, C. van Ditzhuijzen, J. Mulder, R. Morgenstern, and R. Hoekstra, 'Ultrasensitive atom trap trace analysis of 41Ca,' presented at the Laser and Probing Conference, Leuven, Belgium, July 7-12, 2002.

Nagel, S. B.

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

Nortershauser, W.

B. A. Bushaw and W. Nortershauser, 'Resonance ionization spectroscopy of stable strontium isotopes and 90Sr via 5s21S0-->5s5p1P1-->5s5d 1D2-->5s11f1F3-->Sr+,' Spectrochim. Acta Part B 55, 1679-1692 (2000).
[CrossRef]

O'Connor, T. P.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

C. Y. Chen, Y. M. Li, K. Bailey, T. P. O'Connor, L. Young, and Z.-T. Lu, 'Ultrasensitive isotope trace analyses with a magneto-optical trap,' Science 286, 1139-1141 (1999).
[CrossRef] [PubMed]

Orozco, L. A.

T. C. Killian, S. Kulin, S. D. Bergeson, L. A. Orozco, C. Orzel, and S. L. Rolston, 'Creation of an ultracold neutral plasma,' Phys. Rev. Lett. 83, 4776-4779 (1999).
[CrossRef]

Orzel, C.

T. C. Killian, S. Kulin, S. D. Bergeson, L. A. Orozco, C. Orzel, and S. L. Rolston, 'Creation of an ultracold neutral plasma,' Phys. Rev. Lett. 83, 4776-4779 (1999).
[CrossRef]

Park, H. G.

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

Purtschert, R.

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

Ramsay, E. B.

F. Buchinger, R. Corrivean, E. B. Ramsay, D. Berdichevsky, and D. W. L. Sprung, 'Influence of the N=50 shell closure on mean square charge radii of strontium,' Phys. Rev. C 32, 2058-2066 (1985).
[CrossRef]

Rolston, S. L.

T. C. Killian, S. Kulin, S. D. Bergeson, L. A. Orozco, C. Orzel, and S. L. Rolston, 'Creation of an ultracold neutral plasma,' Phys. Rev. Lett. 83, 4776-4779 (1999).
[CrossRef]

Sankari, M.

Simien, C. E.

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

Sprung, D. W. L.

F. Buchinger, R. Corrivean, E. B. Ramsay, D. Berdichevsky, and D. W. L. Sprung, 'Influence of the N=50 shell closure on mean square charge radii of strontium,' Phys. Rev. C 32, 2058-2066 (1985).
[CrossRef]

Sturchio, N. C.

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

Suryanarayana, M. V.

Takamoto, M.

M. Yasuda, T. Kishimoto, M. Takamoto, and H. Katori, 'Photoassociation spectroscopy of 88Sr: reconstruction of the wave function near the laser node,' Phys. Rev. A 73, 011403 (2006).
[CrossRef]

Thommesen, A. M.

N. Kjaergaard, L. Hornekaer, A. M. Thommesen, Z. Videsen, and M. Drewsen, 'Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization,' Appl. Phys. B 71, 207-210 (2000).
[CrossRef]

van Ditzhuijzen, C.

S. Hoekstra, C. van Ditzhuijzen, J. Mulder, R. Morgenstern, and R. Hoekstra, 'Ultrasensitive atom trap trace analysis of 41Ca,' presented at the Laser and Probing Conference, Leuven, Belgium, July 7-12, 2002.

Videsen, Z.

N. Kjaergaard, L. Hornekaer, A. M. Thommesen, Z. Videsen, and M. Drewsen, 'Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization,' Appl. Phys. B 71, 207-210 (2000).
[CrossRef]

Vogel, K. R.

K. R. Vogel, 'Laser cooling on a narrow atomic transition and measurement of the two-body cold collision loss rate in a strontium magneto-optical trap,' Ph.D. dissertation (University of Colorado, 1999).

Wendt, K.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

Wiley, W. C.

W. C. Wiley and I. H. McLaren, 'Time-of-flight mass spectrometer with improved resolution,' Rev. Sci. Instrum. 26, 1150-1157 (1955).
[CrossRef]

Yasuda, M.

M. Yasuda, T. Kishimoto, M. Takamoto, and H. Katori, 'Photoassociation spectroscopy of 88Sr: reconstruction of the wave function near the laser node,' Phys. Rev. A 73, 011403 (2006).
[CrossRef]

Young, L.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

C. Y. Chen, Y. M. Li, K. Bailey, T. P. O'Connor, L. Young, and Z.-T. Lu, 'Ultrasensitive isotope trace analyses with a magneto-optical trap,' Science 286, 1139-1141 (1999).
[CrossRef] [PubMed]

Appl. Phys. B

N. Kjaergaard, L. Hornekaer, A. M. Thommesen, Z. Videsen, and M. Drewsen, 'Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization,' Appl. Phys. B 71, 207-210 (2000).
[CrossRef]

Geophys. Res. Lett.

X. Du, R. Purtschert, K. Bailey, B. E. Lehmann, R. Lorenzo, Z. T. Lu, P. Mueller, T. P. O'Connor, N. C. Sturchio, and L. Young, 'A new method of measuring 81Kr and 85Kr abundances in environmental samples,' Geophys. Res. Lett. 30, 1-10 (2003).
[CrossRef]

J. Korean Assoc. Radiat. Prot.

K. H. Hong, Y. H. Choi, S. B. Kim, M. H. Lee, H. G. Park, K. S. Choi, S. R. Kim, and C. W. Lee, 'Analysis of 89Sr, 90Sr in soil sample rising crown ether chloroform solvent extraction method, radio-chemical analysis,' J. Korean Assoc. Radiat. Prot. 21, 9-16 (1996).

J. Opt. Soc. Am. B

J. Opt. Soc. Korea

Phys. Rev. A

M. Yasuda, T. Kishimoto, M. Takamoto, and H. Katori, 'Photoassociation spectroscopy of 88Sr: reconstruction of the wave function near the laser node,' Phys. Rev. A 73, 011403 (2006).
[CrossRef]

Phys. Rev. C

F. Buchinger, R. Corrivean, E. B. Ramsay, D. Berdichevsky, and D. W. L. Sprung, 'Influence of the N=50 shell closure on mean square charge radii of strontium,' Phys. Rev. C 32, 2058-2066 (1985).
[CrossRef]

Phys. Rev. Lett.

I. D. Moore, K. Bailey, J. Greene, Z. T. Lu, P. Mueller, T. P. O'Connor, Ch. Geppert, K. Wendt, and L. Young, 'Counting individual 41Ca atoms with a magneto-optical trap,' Phys. Rev. Lett. 92, 153002 (2004).
[CrossRef] [PubMed]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

T. C. Killian, S. Kulin, S. D. Bergeson, L. A. Orozco, C. Orzel, and S. L. Rolston, 'Creation of an ultracold neutral plasma,' Phys. Rev. Lett. 83, 4776-4779 (1999).
[CrossRef]

C. E. Simien, Y. C. Chen, P. Gupta, S. Laha, Y. N. Martinez, P. G. Mickelson, S. B. Nagel, and T. C. Killian, 'Using absorption imaging to study ion dynamics in an ultracold neutral plasma,' Phys. Rev. Lett. 92, 143001 (2004).
[CrossRef] [PubMed]

Y. Bidel, B. Klappauf, J. C. Bernard, D. Delande, G. Labeyrie, and C. Miniatura, 'Coherent light transport in cold strontium cloud,' Phys. Rev. Lett. 88, 203902 (2002).
[CrossRef] [PubMed]

T. Mukaiyama, H. Katori, T. Ido, Y. Li, and M.-K. Gonokami, 'Recoil-limited laser cooling of 87Sr atoms near the Fermi temperature,' Phys. Rev. Lett. 90, 113002 (2003).
[CrossRef] [PubMed]

H. Katori, T. Ido, Y. Isoya, and M.-K. Gonokami, 'Magneto-optical trapping and cooling of strontium atoms down to the photon recoil temperature,' Phys. Rev. Lett. 82, 1116-1119 (1999).
[CrossRef]

Rev. Sci. Instrum.

W. C. Wiley and I. H. McLaren, 'Time-of-flight mass spectrometer with improved resolution,' Rev. Sci. Instrum. 26, 1150-1157 (1955).
[CrossRef]

Science

C. Y. Chen, Y. M. Li, K. Bailey, T. P. O'Connor, L. Young, and Z.-T. Lu, 'Ultrasensitive isotope trace analyses with a magneto-optical trap,' Science 286, 1139-1141 (1999).
[CrossRef] [PubMed]

Spectrochim. Acta Part B

B. A. Bushaw and B. D. Cannon, 'Diode laser based resonance ionization mass spectrometric measurement of strontium-90,' Spectrochim. Acta Part B 52, 1839-1854 (1997).
[CrossRef]

B. A. Bushaw and W. Nortershauser, 'Resonance ionization spectroscopy of stable strontium isotopes and 90Sr via 5s21S0-->5s5p1P1-->5s5d 1D2-->5s11f1F3-->Sr+,' Spectrochim. Acta Part B 55, 1679-1692 (2000).
[CrossRef]

Other

K. H. Ko, D. Y. Jeong, G. Lim, T. S. Kim, Y. H. Cha, D. H. Kim, H. K. Cha, and Y. K. Kim, 'Noble method for the strontium analysis based on the atom trap followed by the mass spectrometer,' presented at the 13th International Symposium on Laser Spectroscopy, Daejeon, Korea, November 3-4, 2005.

K. R. Vogel, 'Laser cooling on a narrow atomic transition and measurement of the two-body cold collision loss rate in a strontium magneto-optical trap,' Ph.D. dissertation (University of Colorado, 1999).

S. Hoekstra, C. van Ditzhuijzen, J. Mulder, R. Morgenstern, and R. Hoekstra, 'Ultrasensitive atom trap trace analysis of 41Ca,' presented at the Laser and Probing Conference, Leuven, Belgium, July 7-12, 2002.

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Figures (5)

Fig. 1
Fig. 1

Sr level diagram showing the relevant laser wavelengths.

Fig. 2
Fig. 2

Laser-induced fluorescence as a function of the laser frequency (a) in the atomic beam; (b) in the trapped atoms. The fluorescence peaks of the trapped atoms were positioned at the red side at 30 MHz from the corresponding resonance lines. The x axis shows the relative frequency from the Sr 88 peak. The divergence of the (a) atomic beam was less than 2 mrad . Marks A, B, C, and D in (b) show the peak fluorescence positions of Sr 88 , Sr 87 , Sr 86 , and Sr 84 , respectively.

Fig. 3
Fig. 3

Schematics of the MOT followed by the TOF mass spectrometer.

Fig. 4
Fig. 4

Mass spectrum of the trapped Sr atoms. The ion signals were obtained when the laser frequency was tuned to maximize the fluorescence of the trapped Sr atoms, Sr 88 , Sr 87 , Sr 86 , and Sr 84 . The distance from the trap center to the detector was 1.2 m . The bias voltages were 1 kV ( V 1 ) and 3 kV ( V 2 ) . The x axis shows the flight time of each isotope.

Fig. 5
Fig. 5

Mass spectrum of the trapped Sr 86 atoms. The ion signal was obtained when the laser frequency was tuned to maximize the fluorescence of the trapped Sr 86 atoms. The measurement was performed in the same experimental conditions as Fig. 4. (a) The TOF mass signal, (b) the background signal at the same experimental conditions except for the quadrupole magnetic field with 0.

Equations (1)

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S = ( X A f 1 X A f ) ( X A i 1 X A i ) ,

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