Coherent population trapping (CPT) versus electromagnetically induced transparency (EIT)

被引:19
作者
Khan, Sumanta [1 ]
Kumar, Molahalli Panidhara [1 ]
Bharti, Vineet [1 ]
Natarajan, Vasant [1 ]
机构
[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India
关键词
DRESSED STATES; LASER; ABSORPTION; RESONANCES; SPECTROSCOPY; INTERFERENCE; LINEWIDTH; SYSTEM;
D O I
10.1140/epjd/e2017-70676-x
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We discuss the differences between two well-studied and related phenomena - coherent population trapping (CPT) and electromagnetically induced transparency (EIT). Many differences between the two - such as the effect of power in the beams, detuning of the beams from resonance, and the use of vapor cells filled with buffer gas - are demonstrated experimentally. The experiments are done using magnetic sublevels of the 1 -> 1 transition in the D-2 line of Rb-87.
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页数:9
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