Mid-infrared third-harmonic emission from heavily-doped germanium plasmonic nanoantennas
- Fischer, Marco P.
- Riede, Aaron
- Grupp, Alexander
- Gallacher, Kevin
- Frigerio, Jacopo
- PELLEGRINI, GIOVANNI
- Ortolani, Michele
- Paul, Douglas J.
- Isella, Giovanni
- Leitenstorfer, Alfred
- Biagioni, Paolo
- Brida, Daniele
DOIAbstract
We investigate the nonlinear optical properties of single resonant plasmonic antennas fabricated from heavily-doped Germanium films. Excitation with intense and ultrashort midinfrared pulses at 10.8 μm wavelength produces emission at 3.7 μm via third-harmonic generation
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