High quality electromagnetically induced transparency spectroscopy of ^87Rb in a buffer gas cell with a magnetic field

High quality electromagnetically induced transparency spectroscopy of ^87Rb in a buffer gas cell with a magnetic field

We have studied the phenomenon of electromagnetically induced transparency（EIT） of ^87Rb vapor with a buffer gas in a magnetic field at room temperature. It is found that the spectral lines caused by the velocity selective optical pump effects get much weaker and wider when the sample cell is mixed...

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Veröffentlicht in:中国物理B：英文版 2017, Vol.26 (7), p.101-105
1. Verfasser: 成红 王汉睦 张珊珊 辛培培 罗军 刘红平
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Sprache:eng
Schlagworte:
体细胞
光谱法
电磁感应
磁场
缓冲气体
质量
透明度
高分辨率光谱
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description We have studied the phenomenon of electromagnetically induced transparency（EIT） of ^87Rb vapor with a buffer gas in a magnetic field at room temperature. It is found that the spectral lines caused by the velocity selective optical pump effects get much weaker and wider when the sample cell is mixed with a 5-Torr N_2 gas while the EIT signal is kept almost unchanged. A weighted least-square fit is also developed to remove the Doppler broadening completely. This spectral method provides a way to measure the Zeeman splitting with high resolution, for example, the Λ-type EIT resonance splits into four peaks on the D_2 line of ^87Rb in the thermal 2-cm vapor cell with a magnetic field along the electric field of the linearly polarized coupling laser. The high-resolution spectrum can be used to lock the laser to a given frequency by tuning the magnetic field.
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subjects 体细胞
光谱法
电磁感应
磁场
缓冲气体
质量
透明度
高分辨率光谱
title High quality electromagnetically induced transparency spectroscopy of ^87Rb in a buffer gas cell with a magnetic field
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