title: Electrically driven nanopillars for THz quantum cascade lasers.
abstract: In this work we present a rapid and parallel process for the fabrication of large scale arrays of electrically driven nanopillars for THz quantum cascade active media. We demonstrate electrical injection of pillars of 200 nm diameter and 2 µm height, over a surface of 1 mm(2). THz electroluminescence from the nanopillars is reported. This result is a promising step toward the realization of zero-dimensional structure for terahertz quantum cascade lasers.
authors.affiliation: Institute for Quantum Electronics, ETH-Zurich, CH-8093 Zurich, Switzerland. amanti@univ-paris-diderot.fr
authors.forename: M I
authors.initials: MI
authors.lastname: Amanti
authors.forename: A
authors.initials: A
authors.lastname: Bismuto
authors.forename: M
authors.initials: M
authors.lastname: Beck
authors.forename: L
authors.initials: L
authors.lastname: Isa
authors.forename: K
authors.initials: K
authors.lastname: Kumar
authors.forename: E
authors.initials: E
authors.lastname: Reimhult
authors.forename: J
authors.initials: J
authors.lastname: Faist
mesh_terms: D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D053758:Nanoparticles / Q000737:chemistry* / Q000528:radiation effects*; D036103:Nanotechnology / Q000295:instrumentation*; D055053:Terahertz Radiation