Title :
Optical switching of mid-infrared plasmonic nanoantennas based on germanium
Author :
Fischer, Marco P. ; Schmidt, Christian ; Stock, Johannes ; Sakat, Emilie ; Samarelli, Antonio ; Frigerio, Jacopo ; Biagioni, Paolo ; Paul, Douglas J. ; Isella, Giovanni ; Leitenstorfer, Alfred ; Brida, Daniele
Author_Institution :
Dept. of Phys. & Center for Appl. Photonics, Univ. of Konstanz, Konstanz, Germany
Abstract :
Germanium nanoantennas are activated by triggering a mid-infrared plasma response via ultrafast interband excitation. Femtosecond control of the intrinsic semiconductor allows complete activation of the plasmonic resonance for hundreds of picoseconds.
Keywords :
antennas; germanium; high-speed optical techniques; nanophotonics; plasmonics; Ge; germanium nanoantennas; intrinsic semiconductor; midinfrared plasma response; midinfrared plasmonic nanoantennas; optical switching; plasmonic resonance; ultrafast interband excitation; Antenna arrays; Germanium; Optical sensors; Plasmons; Resonant frequency; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
