Laser frequency stabilization to excited state transitions using electromagnetically induced transparency in a cascade system

被引:94
作者
Abel, R. P. [1 ]
Mohapatra, A. K. [1 ]
Bason, M. G. [1 ]
Pritchard, J. D. [1 ]
Weatherill, K. J. [1 ]
Raitzsch, U. [1 ]
Adams, C. S. [1 ]
机构
[1] Univ Durham, Dept Phys, Durham DH1 3LE, England
基金
英国工程与自然科学研究理事会;
关键词
atom-photon collisions; excited states; laser frequency stability; photoexcitation; rubidium; self-induced transparency; ATOMIC VAPOR; SPECTROSCOPY; DISPERSION; LINESHAPES; DICHROISM; RUBIDIUM; LOCKING;
D O I
10.1063/1.3086305
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate laser frequency stabilization to excited state transitions using cascade electromagnetically induced transparency. Using a room temperature Rb vapor cell as a reference, we stabilize a first diode laser to the D(2) transition and a second laser to a transition from the intermediate 5P(3/2) state to a highly excited state with principal quantum number n=19-70. A combined laser linewidth of 280 +/- 50 kHz over a 100 mu s time period is achieved. This method may be applied generally to any cascade system and allows laser stabilization to an atomic reference in the absence of a direct absorption signal.
引用
收藏
页数:3
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