2012/05/31 by Christopher Carr, Monsit Tanasittikosol, Armen Sargsyan +3 · 1 citation
Physics and Astronomy · #physics.atom-ph
paper · pdf · doi:10.1364/ol.37.003858
3 pages, 4 figures
arxiv created 2012/08/01 · arxiv updated 2015/06/05
We demonstrate electromagnetically induced transparency (EIT) in a four-level cascade system where the upper level is a Rydberg state. The observed spectral features are sub-Doppler and can be enhanced due to the compensation of Doppler shifts with AC Stark shifts. A theoretical description of the system is developed which agrees well with the experimental results and an expression for the optimum parameters is derived.