Optical Switching of Mid-Infrared Plasmonic Nanoantennas Based on Germanium (Orale)

Marco Patrick Fischer (1) , Christian Schmidt (1) , Johannes Stock (1) , Emilie Sakat (2, 3) , Antonio Samarelli (4) , Jacopo Frigerio (5) , Paolo Biagioni (3) , Douglas J Paul (4) , Giovanni Isella (5) , Alfred Leitenstorfer (1) , Daniele Brida (1)

1 Department of Physics and Center for Applied Photonics
2 Laboratoire Charles Fabry / Naphel
3 INFM-Dipartimento di Fisica-Politecnico di Milano
4 James Watt School of Engineering [Univ Glasgow]
5 Politecn Milan, LNESS Dipartimento Fis, I-22100 Como, Italy

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.

Domains: Optics [physics.optics]

Marco Patrick Fischer, Christian Schmidt, Johannes Stock, Emilie Sakat, Antonio Samarelli, et al.. Optical Switching of Mid-Infrared Plasmonic Nanoantennas Based on Germanium (Orale). CLEO/Europe-EQEC 2015, Conference on Lasers & Electro-Optics/ European Quantum Electronics Conference, May 2015, San Jose, United States. pp.FW3E.2 ⟨10.1364/CLEO_QELS.2015.FW3E.2⟩. ⟨hal-01713617⟩