Fast Dynamic Color Switching in Temperature‐Responsive Plasmonic Films. Issue 6 (16th March 2016)

• Record Type: Journal Article
• Authors: Ding, Tao; Rüttiger, Christian; Zheng, Xuezhi; Benz, Felix; Ohadi, Hamid; Vandenbosch, Guy A. E.; Moshchalkov, Victor V.; Gallei, Markus; Baumberg, Jeremy J.
• Is Part Of: Advanced optical materials. Volume 4:Issue 6(2016:Jun.)
• Page Start: 877
• Page End: 882
• Publication Date: 2016-03-16
• Subjects: films -- gold -- plasmons -- pNIPAM -- spectra; Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.201600094
• Languages: English
• ISSNs: 2195-1071

Abstract

Abstract : Rapid modulation of plasmonic scattering from nanoparticles is realized using a temperature‐actuated supporting gel layer to change their separation from a mirror surface. This forms an optical cavity embedded between scattering nanoparticle and underlying mirror. The 70 nm thick poly( N ‐isopropylacrylamide) brushes achieve video rate switching, yielding large‐area thin films, which change color with wavelength shifts Δ λ > 400 nm.