EPJ

Gain properties in a four-level system with a closed interaction contour

Y. Xue, G. Wang, H.-F. Zhang and J.-Y. Gao

Eur. Phys. J. D, 33 1 (2005) 123-127

Published online: 25 January 2005

DOI: 10.1140/epjd/e2005-00006-0

Y. Xue

G. Wang

H.-F. Zhang

J.-Y. Gao

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