한국광학회지 (Korean Journal of Optics and Photonics)

  • 제20권4호
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  • Pages.249-254
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  • 2009
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  • 1225-6285(pISSN)
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  • 2287-321X(eISSN)
한국광학회 (Optical Society of Korea)
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파라핀이 코팅된 Rb 증기 셀에서 비선형 광자기 효과 신호

Nonlinear Magneto-optic Effect in the Paraffin Coated Rb Vapor Cell

  • Lee, Hyun-Joon (Department of Physics, Pusan National University) ;
  • Yu, Ye-Jin (Department of Physics, Pusan National University) ;
  • Bae, In-Ho (Department of Physics, Pusan National University) ;
  • Moon, Han-Seb (Department of Physics, Pusan National University)
  • 발행 : 2009.08.25
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초록

본 연구에서는 파라핀이 코팅된 Rb원자 증기 셀을 이용하여 $^{87}Rb$ $D_1$전이선의 Hanle스펙트럼과 비선형 광자기 효과 신호를 조사하였다. 파라핀 코팅 증기 셀의 효과에 의한 좁은 스펙트럼 폭을 가진 영역과 순수 증기 셀에서 얻을 수 있는 넓은 스펙트럼폭을 가진 이중구조의 Hanle 스펙트럼을 관측할 수 있었다. 스펙트럼에 나타난 이중구조에서 좁은 선폭 영역의 선폭은 1 kHz로 측정되었고, 스펙트럼 크기는 전체 스펙트럼에 대해서 10%로 측정되었다. 또한, Hanle 스펙트럼에 대응되는 이중 미분형태의 비선형 광자기 신호를 관측하였으며, 기울기가 급격하게 변하는 비선형 광자기 신호의 기울기는 레이저의 출력이 $200{\mu}W$일 때 대략 10 mV/${\mu}T$였다.

In our study, the Hanle spectrum and nonlinear magneto-optic effect (NMOE) signals were observed as a function of magnetic field on $D_1$ line of $^{87}Rb$ atoms contained in a paraffin coated vapor cell. We observed the double structure from the Hanle and the NMOE spectrum in the paraffin coated Rb vapor cell. The narrow spectral width of the narrow resonance signal is approximately 1 kHz and the magnitude is approximately 10 percent of the total spectrum. Also, the NMOE signals corresponding to the Hanle configuration consisted of two different dispersion-like features. At the near zero magnetic field, a sharp slope signal was centered, and its value was 10 mV/${\mu}T$ with laser power was $200{\mu}W$.

키워드

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