Macroscopic Self‐Assembly and Optical Characterization of Nanoparticle–Ligand Metamaterials. Issue 1 (31st January 2013)

• Record Type: Journal Article
• Authors: Fontana, Jake; Naciri, Jawad; Rendell, Ronald; Ratna, Banahalli R.
• Is Part Of: Advanced optical materials. Volume 1:Issue 1(2013:Jan.)
• Page Start: 100
• Page End: 106
• Publication Date: 2013-01-31
• Subjects: Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.201200039
• Languages: English
• ISSNs: 2195-1071

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adom201200039-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Self‐assembly of macroscopic gold nanosphere–ligand films</bold> is demonstrated to produce optical metamaterials. Using phase separation and surface tension gradients nanoparticles are capped with thiol ligands, self‐assembled into macroscopic monolayers and transported onto non‐functionalized substrates. By measuring the real and imaginary parts of the phase shift of light transmitted through the self‐assembled films a positive near‐zero index of refraction at visible wavelengths is demonstrated. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg1xm0ws4p" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>