Spin-polarization by optical pumping with selective reflection

Haruhiko Ito, Takahisa Mitsui, Katsuyuki Kobayashi, Tsutomu Yabuzaki, Taro Ito

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A new optical pumping scheme utilizing selective reflection is proposed and studied for the first time. This method enables us to observe the spin-polarization of atoms even at the high density, at which the pumping beam cannot be transmitted through a sample cell. Theoretical analysis shows that the light reflectivity at the glass-vapor interface is strongly dependent on the direction of the macroscopic magnetic moment of optical pumped atoms. Two types of demonstrating experiments are carried out with Cs and Rb vapors at the temperature ̃ 200°C. In the transverse pumping experiment with a modulated laser beam, asymmetry of the magnetic resonance signal with respect to the inversion of the magnetic field direction is observed as predicted by the theory. In the longitudinal pumping experiment, the transfer of a large amount of the magnetic moment by spin-exchange collisions is directly observed.

Original languageEnglish
Pages (from-to)1951-1963
Number of pages13
JournalJournal of the Physical Society of Japan
Volume62
Issue number6
Publication statusPublished - 1993 Jun
Externally publishedYes

Fingerprint

optical pumping
pumping
polarization
magnetic moments
vapors
spin exchange
atoms
magnetic resonance
asymmetry
laser beams
inversions
reflectance
collisions
glass
cells
magnetic fields
temperature

Keywords

  • Alkali-metal atoms
  • Optical pumping
  • Selective reflection
  • Spin-exchange collisions
  • Spin-polarization

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ito, H., Mitsui, T., Kobayashi, K., Yabuzaki, T., & Ito, T. (1993). Spin-polarization by optical pumping with selective reflection. Journal of the Physical Society of Japan, 62(6), 1951-1963.

Spin-polarization by optical pumping with selective reflection. / Ito, Haruhiko; Mitsui, Takahisa; Kobayashi, Katsuyuki; Yabuzaki, Tsutomu; Ito, Taro.

In: Journal of the Physical Society of Japan, Vol. 62, No. 6, 06.1993, p. 1951-1963.

Research output: Contribution to journalArticle

Ito, H, Mitsui, T, Kobayashi, K, Yabuzaki, T & Ito, T 1993, 'Spin-polarization by optical pumping with selective reflection', Journal of the Physical Society of Japan, vol. 62, no. 6, pp. 1951-1963.
Ito, Haruhiko ; Mitsui, Takahisa ; Kobayashi, Katsuyuki ; Yabuzaki, Tsutomu ; Ito, Taro. / Spin-polarization by optical pumping with selective reflection. In: Journal of the Physical Society of Japan. 1993 ; Vol. 62, No. 6. pp. 1951-1963.
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