期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.086803
关键词
-
资金
- Chemical Sciences, Biosciences and Geosciences Division of the BES Office of the U.S. Department of Energy
- NSF [CHE-0507147]
- U.S.-Israel BSF
We introduce an effect of metallization of dielectric nanofilms by strong, adiabatically varying electric fields. The metallization causes optical properties of a dielectric film to become similar to those of a plasmonic metal (strong absorption and negative permittivity at low optical frequencies). This is a quantum effect, which is exponentially size-dependent, occurring at fields on the order of 0.1 V/angstrom and pulse durations ranging from similar to 1 fs to similar to 10 ns for a film thickness of 3-10 nm.
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