中国物理B ›› 2017, Vol. 26 ›› Issue (6): 67801-067801.doi: 10.1088/1674-1056/26/6/077801
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
Combined effect of light intensity and temperature on the magnetic resonance linewidth in alkali vapor cell with buffer gas
Yang Gao(高阳), Hai-Feng Dong(董海峰), Xiang Wang(王翔), Xiao-Fei Wang(王笑菲), Ling-Xiao Yin(尹凌霄)
- 1 School of Instrumentation Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, China;
2 School of Electronic and Information Engineering, Beihang University, Beijing 100191, China
Combined effect of light intensity and temperature on the magnetic resonance linewidth in alkali vapor cell with buffer gas
Yang Gao(高阳)1, Hai-Feng Dong(董海峰)1, Xiang Wang(王翔)2, Xiao-Fei Wang(王笑菲)1, Ling-Xiao Yin(尹凌霄)1
- 1 School of Instrumentation Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, China;
2 School of Electronic and Information Engineering, Beihang University, Beijing 100191, China
摘要：
One of the peculiar phenomenons in non-zero magnetic resonance magnetometer is that, with the increase of the temperature, the magnetic resonance linewidth is narrowed at first instead of broadened due to the increasing collision rate. The magnetometer usually operates at the narrowest linewidth temperature to obtain the best sensitivity. Here, we explain this phenomenon quantitatively considering the nonlinear of the optical pumping in the cell and did experiments to verify this explanation. The magnetic resonance linewidth is measured using one amplitude-modulated pump laser and one continuous probe laser. The field is along the direction orthogonal to the plane of pump and probe beams. We change the temperature from 53℃ to 93℃ and the pumping light from 0.1 mW to 2 mW. The experimental results agree well with the theoretical calculations.
中图分类号: (Magneto-optical effects)
- 78.20.Ls