Letter pubs.acs.org/NanoLett
Broadband Tunable, Polarization-Selective and Directional Emission of (6,5) Carbon Nanotubes Coupled to Plasmonic Crystals Yuriy Zakharko,*,† Arko Graf,†,‡ Stefan P. Schießl,† Bernd Haḧ nlein,§ Jörg Pezoldt,§ Malte C. Gather,‡ and Jana Zaumseil*,† †
Institute for Physical Chemistry, Universität Heidelberg, D-69120 Heidelberg, Germany SUPA, School of Physics and Astronomy, University of St. Andrews, St. Andrews KY16 9SS, United Kingdom § Institut für Mikro- und Nanotechnologie, Technische Universität Ilmenau, 98693 Ilmenau, Germany ‡
S Supporting Information *
ABSTRACT: We demonstrate broadband tunability of light emission from dense (6,5) single-walled carbon nanotube thin films via efficient coupling to periodic arrays of gold nanodisks that support surface lattice resonances (SLRs). We thus eliminate the need to select single-walled carbon nanotubes (SWNTs) with different chiralities to obtain narrow linewidth emission at specific near-infrared wavelengths. Emission from these hybrid films is spectrally narrow (20−40 meV) yet broadly tunable (∼1000−1500 nm) and highly directional (divergence
