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

Abel, R.P.; Mohapatra, A.K.; Bason, M.G.; Pritchard, J.D.; Weatherill, K.J.; Raitzsch, U.; Adams, C.S.

Abstract

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 D2 transition and a second laser to a transition from the intermediate 5P3/2 state to a highly excited state with principal quantum number n = 19–70. A combined laser linewidth of 280±50 kHz over a 100 μs 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.

Citation

Abel, R., Mohapatra, A., Bason, M., Pritchard, J., Weatherill, K., Raitzsch, U., & Adams, C. (2009). Laser frequency stabilization to excited state transitions using electromagnetically induced transparency in a cascade system. Applied Physics Letters, 94(7), Article 071107. https://doi.org/10.1063/1.3086305

• Journal Article Type: Article
• Publication Date: Feb 16, 2009
• Deposit Date: Sep 24, 2010
• Publicly Available Date: Oct 6, 2010
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Electronic ISSN: 1077-3118
• Publisher: American Institute of Physics
• Peer Reviewed: Not Peer Reviewed
• Volume: 94
• Issue: 7
• Article Number: 071107
• DOI: https://doi.org/10.1063/1.3086305
• Publisher URL: http://apl.aip.org/resource/1/applab/v94/i7/p071107_s1