Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Bouble Resonance Optical Pumping in the Transition 5S1/2-5P3/2-4D3/2, 5/2 of Rb Atoms

루비듐 5S1/2-5P3/2-4D3/2, 5/2 전이선에서의 이중공명 광펌핑 분광

  • Moon, H.S. (Eivision of Optical Metrology, Korea Research Institute of Standards and Science) ;
  • Lee, L. (Department of Physics Education, Korea National University of Education) ;
  • Kim, J.B. (Department of Physics Education, Korea National University of Education)
  • 문한섭 (한국표준과학연구원 광기술표준부) ;
  • 이림 (한국교원대학교 물리교육과) ;
  • 김중복 (한국교원대학교 물리교육과)
  • Published : 2005.08.01
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Abstract

We present the double resonance optical pumping(DROP) spectra according to the laser power, the polarization combination of lasers, and the alignment of lasers in the transition $5P_{3/2}-4D_{5/2}\;and\;5P_{3/2}-4D_{5/2}$ of $^{87}Rb.$ We observed obviously changing DROP spectrum according to the laser power in the transition $5P_{3/2}-4D_{5/2}$ involved the cycling transition. The laser power effects are attributed to the low optical-pumping-effect in the cycling transition. We observed changing DROP spectrum depending on the polarizations of the lasers. The laser polarization effects are attributed to the changing transition probability according to the polarizations of lasers. We compared the co-propagation with the counter-propagation and the spectral linewidths were 12.2 MHz and 6.9 MHz, respectively.

우리는 $^{87}Rb$ 원자의 $5S_{1/2}-5P_{3/2}-4D_{3/2,\;5/2}$ 전이선을 이용하여 레이저의 세기, 편광조합, 그리고 정렬상태에 따른 이중공명광펌핑(double resonance optical pumping; DROP) 스펙트럼을 조사하였다. $5P_{3/2}-4D_{5/2}$ 전이선에서 레이저의 세기에 따른 초미세 구조간의 DROP 신호의 변화가 크게 나타났고, 그 원인은 순환전이선의 낮은 광펌핑 효율 때문이었다. 두 레이저의 편광조합을 달리 했을 때 이중공명의 전이율이 변하고, 이러한 효과가DROP스펙트럼의 변화로 나타났다. 또한 두 레이저가 같은 방향으로 진행하는 경우와 반대 방향으로 진행하는 경우를 비교했을 때, 스펙트럼의 선폭은 각각 12.2 MHz 와 6.9 MHz로 측정되었다.

Keywords

References

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