Loading [MathJax]/extensions/tex2jax.js

Interferometry with laser-manipulated cold atoms

Research output: Contribution to journalArticleResearchpeer review

Authors

  • W. Ertmer
  • K. Sengstock
  • U. Sterr
  • J. H. Müller
  • J. L. Peng

Details

Original languageEnglish
Pages (from-to)278-283
Number of pages6
JournalLaser physics
Volume6
Issue number2
Publication statusPublished - 1996

Abstract

An atomic beam of laser-decelerated metastable neon atoms has been used for the first experimental observation of an atomic beam diffracted by coherent transfer of two photon momenta from an evanescent standing laser field. The incident atomic beam of the laser-slowed neon atoms had a mean velocity of 25 m/s as it was transversely compressed to a diameter below 0.15 mm and to sub-Doppler temperatures. Direct images of diffraction patterns taken by a high-resolution two-dimensional detector showed specular reflection of the beam of metastable neon atoms up to 74 mrad and clearly the second diffraction order from 81 to 92 mrad. Based on a new detection scheme, optical Ramsey fringes on the Mg intercombination line (λ = 457 nm) have been demonstrated with a resolution of 4 kHz and an accuracy of 2 × 10-15 using laser-cooled and trapped atoms. Applying a pulsed excitation scheme to the trapped ensemble, the Ramsey signals are nearly undisturbed by the relativistic Doppler effect and phase errors of the Ramsey zones. The detection is based on quantum amplification due to the electron shelving effect in cooperation with the trap dynamics, monitored as decrease of the trap fluorescence induced by the fast trapping transition. Simultaneously recorded Ramsey interferences on a thermal atomic beam allowed a direct measurement of the second-order Doppler shift. The relevance of the experiment to future frequency standards achieving a stability and an accuracy of better than 10-15 are discussed. In an additional experiment, the trap for the neutral Mg atoms was improved in such a way that a picture of the fluorescence light of a single atom stored in the trap could be recorded.

ASJC Scopus subject areas

Cite this

Interferometry with laser-manipulated cold atoms. / Ertmer, W.; Sengstock, K.; Sterr, U. et al.
In: Laser physics, Vol. 6, No. 2, 1996, p. 278-283.

Research output: Contribution to journalArticleResearchpeer review

Ertmer, W, Sengstock, K, Sterr, U, Müller, JH, Bettermann, D, Rieger, V, Ruschewitz, F, Peng, JL, Dingler, F, Pabst, A, Strichirsch, R, Christ, M, Scholz, A, Schiffer, M, Wokurka, G, Deutschmann, R, Wallis, H, Friebel, S & Penselin, S 1996, 'Interferometry with laser-manipulated cold atoms', Laser physics, vol. 6, no. 2, pp. 278-283.
Ertmer, W., Sengstock, K., Sterr, U., Müller, J. H., Bettermann, D., Rieger, V., Ruschewitz, F., Peng, J. L., Dingler, F., Pabst, A., Strichirsch, R., Christ, M., Scholz, A., Schiffer, M., Wokurka, G., Deutschmann, R., Wallis, H., Friebel, S., & Penselin, S. (1996). Interferometry with laser-manipulated cold atoms. Laser physics, 6(2), 278-283.
Ertmer W, Sengstock K, Sterr U, Müller JH, Bettermann D, Rieger V et al. Interferometry with laser-manipulated cold atoms. Laser physics. 1996;6(2):278-283.
Ertmer, W. ; Sengstock, K. ; Sterr, U. et al. / Interferometry with laser-manipulated cold atoms. In: Laser physics. 1996 ; Vol. 6, No. 2. pp. 278-283.
Download
@article{86c748cf0ca3468f922b8a0ba8ec2bf3,
title = "Interferometry with laser-manipulated cold atoms",
abstract = "An atomic beam of laser-decelerated metastable neon atoms has been used for the first experimental observation of an atomic beam diffracted by coherent transfer of two photon momenta from an evanescent standing laser field. The incident atomic beam of the laser-slowed neon atoms had a mean velocity of 25 m/s as it was transversely compressed to a diameter below 0.15 mm and to sub-Doppler temperatures. Direct images of diffraction patterns taken by a high-resolution two-dimensional detector showed specular reflection of the beam of metastable neon atoms up to 74 mrad and clearly the second diffraction order from 81 to 92 mrad. Based on a new detection scheme, optical Ramsey fringes on the Mg intercombination line (λ = 457 nm) have been demonstrated with a resolution of 4 kHz and an accuracy of 2 × 10-15 using laser-cooled and trapped atoms. Applying a pulsed excitation scheme to the trapped ensemble, the Ramsey signals are nearly undisturbed by the relativistic Doppler effect and phase errors of the Ramsey zones. The detection is based on quantum amplification due to the electron shelving effect in cooperation with the trap dynamics, monitored as decrease of the trap fluorescence induced by the fast trapping transition. Simultaneously recorded Ramsey interferences on a thermal atomic beam allowed a direct measurement of the second-order Doppler shift. The relevance of the experiment to future frequency standards achieving a stability and an accuracy of better than 10-15 are discussed. In an additional experiment, the trap for the neutral Mg atoms was improved in such a way that a picture of the fluorescence light of a single atom stored in the trap could be recorded.",
author = "W. Ertmer and K. Sengstock and U. Sterr and M{\"u}ller, {J. H.} and D. Bettermann and V. Rieger and F. Ruschewitz and Peng, {J. L.} and F. Dingler and A. Pabst and R. Strichirsch and M. Christ and A. Scholz and M. Schiffer and G. Wokurka and R. Deutschmann and H. Wallis and S. Friebel and S. Penselin",
year = "1996",
language = "English",
volume = "6",
pages = "278--283",
journal = "Laser physics",
issn = "1054-660X",
publisher = "Institute of Physics Publishing",
number = "2",

}

Download

TY - JOUR

T1 - Interferometry with laser-manipulated cold atoms

AU - Ertmer, W.

AU - Sengstock, K.

AU - Sterr, U.

AU - Müller, J. H.

AU - Bettermann, D.

AU - Rieger, V.

AU - Ruschewitz, F.

AU - Peng, J. L.

AU - Dingler, F.

AU - Pabst, A.

AU - Strichirsch, R.

AU - Christ, M.

AU - Scholz, A.

AU - Schiffer, M.

AU - Wokurka, G.

AU - Deutschmann, R.

AU - Wallis, H.

AU - Friebel, S.

AU - Penselin, S.

PY - 1996

Y1 - 1996

N2 - An atomic beam of laser-decelerated metastable neon atoms has been used for the first experimental observation of an atomic beam diffracted by coherent transfer of two photon momenta from an evanescent standing laser field. The incident atomic beam of the laser-slowed neon atoms had a mean velocity of 25 m/s as it was transversely compressed to a diameter below 0.15 mm and to sub-Doppler temperatures. Direct images of diffraction patterns taken by a high-resolution two-dimensional detector showed specular reflection of the beam of metastable neon atoms up to 74 mrad and clearly the second diffraction order from 81 to 92 mrad. Based on a new detection scheme, optical Ramsey fringes on the Mg intercombination line (λ = 457 nm) have been demonstrated with a resolution of 4 kHz and an accuracy of 2 × 10-15 using laser-cooled and trapped atoms. Applying a pulsed excitation scheme to the trapped ensemble, the Ramsey signals are nearly undisturbed by the relativistic Doppler effect and phase errors of the Ramsey zones. The detection is based on quantum amplification due to the electron shelving effect in cooperation with the trap dynamics, monitored as decrease of the trap fluorescence induced by the fast trapping transition. Simultaneously recorded Ramsey interferences on a thermal atomic beam allowed a direct measurement of the second-order Doppler shift. The relevance of the experiment to future frequency standards achieving a stability and an accuracy of better than 10-15 are discussed. In an additional experiment, the trap for the neutral Mg atoms was improved in such a way that a picture of the fluorescence light of a single atom stored in the trap could be recorded.

AB - An atomic beam of laser-decelerated metastable neon atoms has been used for the first experimental observation of an atomic beam diffracted by coherent transfer of two photon momenta from an evanescent standing laser field. The incident atomic beam of the laser-slowed neon atoms had a mean velocity of 25 m/s as it was transversely compressed to a diameter below 0.15 mm and to sub-Doppler temperatures. Direct images of diffraction patterns taken by a high-resolution two-dimensional detector showed specular reflection of the beam of metastable neon atoms up to 74 mrad and clearly the second diffraction order from 81 to 92 mrad. Based on a new detection scheme, optical Ramsey fringes on the Mg intercombination line (λ = 457 nm) have been demonstrated with a resolution of 4 kHz and an accuracy of 2 × 10-15 using laser-cooled and trapped atoms. Applying a pulsed excitation scheme to the trapped ensemble, the Ramsey signals are nearly undisturbed by the relativistic Doppler effect and phase errors of the Ramsey zones. The detection is based on quantum amplification due to the electron shelving effect in cooperation with the trap dynamics, monitored as decrease of the trap fluorescence induced by the fast trapping transition. Simultaneously recorded Ramsey interferences on a thermal atomic beam allowed a direct measurement of the second-order Doppler shift. The relevance of the experiment to future frequency standards achieving a stability and an accuracy of better than 10-15 are discussed. In an additional experiment, the trap for the neutral Mg atoms was improved in such a way that a picture of the fluorescence light of a single atom stored in the trap could be recorded.

UR - http://www.scopus.com/inward/record.url?scp=0038225251&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0038225251

VL - 6

SP - 278

EP - 283

JO - Laser physics

JF - Laser physics

SN - 1054-660X

IS - 2

ER -

By the same author(s)