Spectral characteristics of rubidium atoms confined in a dark magneto-optical trap (DMOT) are measured, including probe absorption spectra and atom density as a function of the cooling and repumping laser frequencies. The trap can capture and cool more than 2.5 x 10(8) rubidium atoms, confining them in a hyperfine state weakly perturbed by the laser beams used to form the trap. The optical density of the trapped atomic cloud approaches 9. A qualitative model of the DMOT operation is presented, based on the experimental results obtained.
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机译：测量了限制在暗磁光阱（DMOT）中的atoms原子的光谱特性，其中包括探针吸收光谱和原子密度（取决于冷却和再吸收激光频率）。陷阱可以捕获和冷却超过2.5 x 10（8）的atoms原子，将它们限制在超细状态下，该状态会被用于形成陷阱的激光束微弱地干扰。被捕获的原子云的光密度接近9。根据获得的实验结果，提出了DMOT操作的定性模型。
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