A magneto-optical trap for chromium with population repumping via intercombination lines
A magneto-optical trap for chromium with population repumping via intercombination lines
复制标题
通过互组合线进行布居再泵浦的铬磁光陷阱
DOI：
10.1209/epl/i1999-00140-7
复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
T. Pfau
中科院分区：
文献类型：
--
作者：
A. Bell;J. Stuhler;S. Locher;S. Hensler;J. Mlynek;T. Pfau
我们提出了铬磁光陷阱的实现。 52Cr 原子直接从热束加载。通过使用两个红色激光器将已衰变的粒子重新泵送至冷却循环中，从而延长陷阱寿命。我们测量了这些组合线的波长并观察到相干拉曼光谱。目前观测到的 108 cm−3 密度受到与热光束碰撞的限制。
We present the realisation of a magneto-optical trap for chromium. 52Cr atoms are loaded directly from a thermal beam. The trap lifetime is enhanced by using two red lasers to repump population that has decayed, via intercombination lines, to metastable levels back into the cooling cycle. We have measured the wavelengths of these intercombination lines and observed coherent Raman spectra. The observed density of 108 cm−3 is currently limited by collisions with the hot beam.