Applied Physics Letters

Infrared up-conversion with resonantly two-photon pumped metal vapors

D. M. Bloom, James T. Yardley, J. F. Young, Stephen E. Harris

Published May 1, 1974• 95 citations

Abstract

We report efficient up-conversion of low-level ir radiation near 10 μ to the near ultraviolet. Radiation at 9.26 μ is converted to 3305 Å with a photon conversion efficiency of 58% and a corresponding power gain of 16.2. The process employs resonant two-photon pumping of the nonallowed 3s-3d transition in Na.

DOI: 10.1063/1.1655246

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