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Frequency tunable near-infrared metamaterials based on VO₂ phase transition

Dicken, Matthew J. and Aydin, Koray and Pryce, Imogen M. and Sweatlock, Luke A. and Boyd, Elizabeth M. and Walavalkar, Sameer S. and Ma, James M. and Atwater, Harry A. (2009) Frequency tunable near-infrared metamaterials based on VO₂ phase transition. Optics Express, 17 (20). pp. 18330-18339. ISSN 1094-4087. doi:10.1364/OE.17.018330.

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Engineering metamaterials with tunable resonances from mid-infrared to near-infrared wavelengths could have far-reaching consequences for chip based optical devices, active filters, modulators, and sensors. Utilizing the metal-insulator phase transition in vanadium oxide (VO₂), we demonstrate frequency-tunable metamaterials in the near-IR range, from 1.5 - 5 microns. Arrays of Ag split ring resonators (SRRs) are patterned with e-beam lithography onto planar VO₂ and etched via reactive ion etching to yield Ag/VO₂ hybrid SRRs. FTIR reflection data and FDTD simulation results show the resonant peak position red shifts upon heating above the phase transition temperature. We also show that, by including coupling elements in the design of these hybrid Ag/VO₂ bi-layer structures, we can achieve resonant peak position tuning of up to 110 nm.

Item Type:Article
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URLURL TypeDescription
Aydin, Koray0000-0002-3268-2216
Walavalkar, Sameer S.0000-0002-7628-9600
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2009 Optical Society of America. Original Manuscript: August 11, 2009. Manuscript Accepted: September 18, 2009. Revised Manuscript: September 17, 2009. Published: September 25, 2009. We acknowledge financial support from the National Science Foundation under Grant DMR 0606472, and the Army Research Office; portions of this work were performed in facilities sponsored by the Center for Science and Engineering of Materials, and NSF MRSEC. We gratefully acknowledge critical support and infrastructure provided for this work by the Kavli Nanoscience Institute at Caltech. I. M. P. acknowledges the support of a National Science Foundation Graduate Fellowship. We also gratefully acknowledge the help of Professor George Rossman for IR facilities and measurements.
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Army Research Office (ARO)UNSPECIFIED
Kavli Nanoscience InstituteUNSPECIFIED
Issue or Number:20
Classification Code:OCIS codes: (160.3918) Metamaterials; (310.6845) Thin film devices and applications
Record Number:CaltechAUTHORS:20091022-101838485
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Official Citation:Matthew J. Dicken, Koray Aydin, Imogen M. Pryce, Luke A. Sweatlock, Elizabeth M. Boyd, Sameer Walavalkar, James Ma, and Harry A. Atwater, "Frequency tunable near-infrared metamaterials based on VO2 phase transition," Opt. Express 17, 18330-18339 (2009)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:16439
Deposited By: George Porter
Deposited On:22 Oct 2009 17:42
Last Modified:21 Dec 2022 20:06

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