Open AccessElectrically driven nanopillars for THz quantum cascade lasers
Author(s) -
Maria I. Amanti,
A. Bismuto,
Mattias Beck,
Lucio Isa,
Karthik Kumar,
Erik Reimhult,
Jérôme Faist
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.010917
Subject(s) - nanopillar , terahertz radiation , cascade , optoelectronics , materials science , laser , quantum cascade laser , optics , electroluminescence , realization (probability) , fabrication , quantum , nanotechnology , physics , nanostructure , chemistry , statistics , mathematics , chromatography , layer (electronics) , quantum mechanics , medicine , alternative medicine , pathology
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.