Abstract
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 0.1V/Å and pulse durations ranging from ∼1fs to ∼10ns for a film thickness of 3-10 nm.
Original language | English |
---|---|
Article number | 086803 |
Journal | Physical Review Letters |
Volume | 105 |
Issue number | 8 |
DOIs | |
State | Published - Aug 18 2010 |
Scopus Subject Areas
- General Physics and Astronomy