Optics Letters

Observation of amplified reflection through degenerate four-wave mixing at CO_2 laser wavelengths in germanium

David E. Watkins, C. R. Phipps, Stewart J. Thomas

Published Feb 1, 1981• 31 citations

Abstract

We report the first known observation of amplified reflection through degenerate four-wave mixing at 10.6 microm. Reflectivities of over 100% are reported in both n-type and p-type germanium at pump intensities of about 100 MW/cm(2). The maximum reflectivity reported is 800% in p-type Ge.

DOI: 10.1364/ol.6.000076

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