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Highly Strained Compliant Optical Metamaterials with Large Frequency Tunability

Pryce, Imogen M. and Aydin, Koray and Kelaita, Yousif A. and Briggs, Ryan M. and Atwater, Harry A. (2010) Highly Strained Compliant Optical Metamaterials with Large Frequency Tunability. Nano Letters, 10 (10). pp. 4222-4227. ISSN 1530-6984. doi:10.1021/nl102684x.

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Metamaterial designs are typically limited to operation over a narrow bandwidth dictated by the resonant line width. Here we report a compliant metamaterial with tunability of Δλ ~ 400 nm, greater than the resonant line width at optical frequencies, using high-strain mechanical deformation of an elastomeric substrate to controllably modify the distance between the resonant elements. Using this compliant platform, we demonstrate dynamic surface-enhanced infrared absorption by tuning the metamaterial resonant frequency through a CH stretch vibrational mode, enhancing the reflection signal by a factor of 180. Manipulation of resonator components is also used to tune and modulate the Fano resonance of a coupled system.

Item Type:Article
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Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2010 American Chemical Society. Received for review: 08/1/2010. Published on Web: 09/21/2010. We acknowledge financial support from the Air Force Office of Scientific Research under Grant FA9550-09-1-0673. I.M.P. acknowledges the support of a National Science Foundation Graduate Fellowship. We gratefully acknowledge critical support and infrastructure provided for this work by the Kavli Nanoscience Institute at Caltech. Portions of this work were performed in facilities sponsored by the Center for Science and Engineering of Materials, an NSF MRSEC. The authors thank Professor George Rossman for access to his IR facilities and help with measurements, Dr. Shannon Boettcher and Elizabeth Santori for help with surface functionalization, David Valley and Vivian Ferry for useful discussions regarding infrared spectroscopy, and Nicholas Larusso for help with image processing.
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-09-1-0639
NSF Graduate Research FellowshipUNSPECIFIED
Subject Keywords:Metamaterials; polymers; plasmonic sensing
Issue or Number:10
Record Number:CaltechAUTHORS:20101103-072434216
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Official Citation:Highly Strained Compliant Optical Metamaterials with Large Frequency Tunability Imogen M. Pryce, Koray Aydin, Yousif A. Kelaita, Ryan M. Briggs, Harry A. Atwater Nano Letters 2010 10 (10), 4222-4227
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20642
Deposited By: Ruth Sustaita
Deposited On:03 Nov 2010 15:31
Last Modified:09 Nov 2021 00:02

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