Thursday, July 11, 2013

1307.2602 (E. S. Andrianov et al.)

Can losses be compensated by spasers?    [PDF]

E. S. Andrianov, A. V. Dorofeenko, A. A. Pukhov, A. P. Vinogradov, A. A. Lisyansky
We show that in spasers, the pump power, at which the number of coherently excited plasmons is of the same order as the number of spontaneously excited plasmons, exceeds the spasing threshold by the Purcell factor. However, spasers may be used as amplifying inclusions for metamaterials even near the spasing threshold.
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