Selective Absorption of Circularly Polarized Light in Broad Bands by the Zeeman Components of Divalent Thulium in Calcium Fluoride
Selective Absorption of Circularly Polarized Light in Broad Bands by the Zeeman Components of Divalent Thulium in Calcium Fluoride
复制标题
氟化钙中二价铥的塞曼成分对宽带圆偏振光的选择性吸收
DOI：
10.1103/physrev.143.223
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发表时间：
1966
期刊：
影响因子：
--
通讯作者：
E. Sabisky
中科院分区：
文献类型：
--
作者：
C. Anderson;H. Weakliem;E. Sabisky
在2.0 K和9.0 kG下研究了CaF2：Tm2+的4个f− 5 d吸收带的顺磁圆二色性。用群论的方法证明了谱带可分为E5 2和G3 2两个特征标。实验发现，在这种情况下，谱带主要是G32的特征.进行了光泵浦实验，其中通过将泵浦光的偏振从右圆改变到左圆，在X波段频率和1.5 K处的电子顺磁共振吸收信号中容易观察到高达±20%的变化。还报道了一种光学监测基态两个塞曼分量的布居差异的方法。
The paramagnetic circular dichroism of the 4 f− 5 d absorption bands of Ca F 2: Tm 2+ was investigated at 2.0 K and 9.0 kG. Using group theory it is shown that the bands can be separated into E 5 2 and G 3 2 character. Experimentally it was found that in this case the bands are primarily G 3 2 in character. Optical pumping experiments were performed where changes as large as±20% were easily observed in the electron-paramagnetic-resonance absorption signal at X-band frequencies and 1.5 K by changing the polarization of the pump light from right to left circular. A method for optically monitoring the difference in the population of the two Zeeman components of the ground state is also reported on.