523 citations · 2.3k across the 46 of their papers we have counts for
Showing 2007 · quant-phShow all
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quant-ph2007★ 28 cited
Nonlinear Effects in Pulse Propagation through Doppler-Broadened Closed-Loop Atomic Media
Robert Fleischhaker, Jörg Evers
Nonlinear effects in pulse propagation through a medium consisting of four-level double--type systems are studied theoretically. We apply three continous-wave driving fields and…
quant-ph2007★ 20 cited
Negative refraction with tunable absorption in an active dense gas of atoms
P. P. Orth, R. Hennig, C. H. Keitel +1
Applications of negative index materials (NIM) presently are severely limited by absorption. Next to improvements of metamaterial designs, it has been suggested that dense gases of…
quant-ph2007★ 28 cited
Group velocity control in the ultraviolet domain via interacting dark-state resonances
M. Mahmoudi, M. Sahrai, J. Evers
The propagation of a weak probe field in a laser-driven four-level atomic system is investigated. We choose mercury as our model system, where the probe transition is in the ultrav…