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This project has undertaken by Jiayi Fu and Tianyu Liu under the direction of Prof. Jung-Tsung Shen since the Summer of 2015. Kristen Miller had previously contributed to this project.

This figure demonstrates the electric norm of a gold nanoslit lens with a thickness equal to 2λ, where λ is the input wavelength (637 nm).

This figure demonstrates the electric norm of a gold nanoslit lens with a thickness equal to 2λ, where λ is the input wavelength (637 nm).

Metamaterials, a.k.a artificially engineered materials, are designed to have the optical properties that are not displayed by any naturally occurring materials. They usually have periodic structures and sizes much smaller than the required wavelengths. Surprisingly, the optical properties of metamaterials are completely independent of the composite elements such as metals and silicon compounds: metamaterials can generate different kinds of optical phenomena like cloaking and focusing by varying their geometry, shape, size, and et cetera. There are a lot of potential innovations, such as in seismic protection[1] and in sound filtering[2], that can be achieved by metamaterials. For our project, we focus on the focusing properties of the metamaterials.

[1]Brun, M.; S. Guenneau; and A.B. Movchan Feb. 09. (2009). Achieving control of in-plane elastic waves. Appl. Phys. Lett. 94 (61903). P1-7.

[2]Rudykh, S.; Boyce, M. C. (2014). Transforming Wave Propagation in Layered Media via Instability-Induced Interfacial Wrinkling. Physical Review Letters 112 (3).