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Ultra‐broadband Polarisers Based on Metastable Free‐Standing Aligned Carbon Nanotube Membranes
Author(s) -
Cole Matthew T.,
Doherty Matthew,
Parmee Richard,
Dawson Paul,
Milne William I.
Publication year - 2014
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201400238
Subject(s) - materials science , dichroic glass , van der waals force , carbon nanotube , metastability , polarizer , broadband , planar , anisotropy , nanotechnology , nanotube , computer science , optics , telecommunications , physics , molecule , birefringence , computer graphics (images) , quantum mechanics
A carbon nanotube free‐standing linearly dichroic polariser is developed using solid‐state extrusion. Membrane cohesion is experimentally and numerically demonstrated to derive from inter‐tube van der Waals interactions in this family of planar metastable morphologies, controlled by the chemical vapour deposition conditions. Ultra‐broadband polarisation (400 nm – 2.5 mm) is shown and corroborated by effective medium and full numerical simulations.