Journal
CHINESE OPTICS LETTERS
Volume 21, Issue 10, Pages -Publisher
CHINESE LASER PRESS
DOI: 10.3788/COL202321.100201
Keywords
atomic and molecular physics; hyperfine structure; Rydberg states
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This study reports the measurement of electromagnetically induced transparency (EIT) using Rydberg states in ultracold Fermi gases. By studying the line shapes and peak position shift of Rydberg-EIT, we demonstrate significant changes and interaction behaviors of Rydberg states.
We report the measurement of the electromagnetically induced transparency (EIT) with Rydberg states in ultracold 40K Fermi gases, which is obtained through a two-photon process with the ladder scheme. Rydberg-EIT lines are obtained by measuring the atomic losses instead of the transmitted probe beam. Based on the laser frequency stabilization locking to the superstable cavity, we study the Rydberg-EIT line shapes for the 37s and 35d states. We experimentally demonstrate the significant change in the Rydberg-EIT spectrum by changing the principal quantum number of the Rydberg state (n = 37=52 and l = 0). Moreover, the transparency peak position shift is observed, which may be induced by the interaction of the Rydberg atoms. This work provides a platform to explore many interesting behaviors involving Rydberg states in ultracold Fermi gases.
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