Journal
PHYSICAL REVIEW LETTERS
Volume 106, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.105503
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Funding
- Aegis Technologies Inc [41-STTR-UTX-0652]
- NSF [ECCS-0953311]
- AFOSR
- ONR MURI [N00014-10-1-0942]
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [0953311] Funding Source: National Science Foundation
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We introduce a metamaterial design composed of square plasmonic loops loaded by Kerr nonlinearities that combines enhanced nonlinear response with strong artificial magnetism, ensuring a negative refractive index with bistable and self-tunable response. We verify with full-wave simulations that positive-to-negative switching of refractive index may be obtained with moderate loss. The design of a finite-size metamaterial prism is also presented, supporting at the same frequency, and for the same light intensity, positive or inverted Snell refraction as a function of its previous excitation history.
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