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Authors: A. Abass, S. Rodriguez, T. Ako, T. Aubert, M.A. Verschurren, D. Van Thourhout, J. Beeckman, Z. Hens, J. Gomez-Rivas, B. Maes
Title: Active Liquid Crystal Tuning of Metallic Nanoantenna Enhanced Light Emission from Colloidal Quantum Dots
Format: International Journal
Publication date: 9/2014
Journal/Conference/Book: Nano Letters
Volume(Issue): 14 p.5555-5560
DOI: 10.1021/nl501955e
Citations: 34 (Dimensions.ai - last update: 24/10/2021)
18 (OpenCitations - last update: 19/4/2021)
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Abstract

A system comprising an aluminum nanoantenna array on top of a luminescent colloidal quantum dot waveguide and covered by a thermotropic liquid crystal (LC) is
introduced. By heating the LC above its critical temperature, we demonstrate that the concomitant refractive index change modifies the hybrid plasmonic-photonic resonances in the system. This enables active control of the spectrum and directionality of the
narrowband (∼ 6 nm) enhancement of quantum dot photoluminescence by the metallic nanoantennas.

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