Phys. Rev. A 66, 053413 (2002) [7 pages]Rydberg-atom population transfer by population trapping in a chirped microwave pulseReceived 8 August 2001; revised 16 August 2002; published 22 November 2002 We demonstrate that Rydberg atoms can be transferred to states of lower principal quantum number by exposing them to a frequency chirped microwave pulse. Specifically, we have transferred n=75 atoms to n=66 with a 400-ns pulse chirped from 7.8 to 11.8 GHz. In spite of the large number of coupled levels, using a simplified model we can describe the process reasonably well as a sequence of adiabatic rapid passages. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.66.053413
DOI:
10.1103/PhysRevA.66.053413
PACS:
32.80.Rm
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