Phys. Rev. A 72, 051801(R) (2005) [4 pages]Coherent population trapping in a crystalline solid at room temperature
Observation of coherent population trapping (CPT) at ground-state Zeeman sublevels of Cr3+ ion in ruby at room temperature is reported. A mechanism of CPT, not owing to optical pumping, is revealed in a situation when the optical pulse duration is shorter than the population decay time from the excited optical state. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.051801
DOI:
10.1103/PhysRevA.72.051801
PACS:
42.50.Gy, 42.50.Md
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