Optical cloaking with metamaterials
By Wenshan Cai, U. Chettiar, Alexander V. Kildishev, Vladimir M. Shalaev. 2006
2,033 citations recorded by the source corpus.
Artificially structured metamaterials have enabled unprecedented flexibility in manipulating electromagnetic waves and producing new functionalities, including the cloak of invisibility based on coordinate transformation1,2,3. Unlike other cloaking approaches4,5,6, which are typically limited to subwavelength objects, the transformation method allows the design of cloaking devices that render a macroscopic object invisible. In addition, the design is not sensitive to the object that is being cloaked. The first experimental demonstration of such a cloak at microwave frequencies was recently reported7. We note, however, that that design7 cannot be implemented for an optical cloak, which is certainly of particular interest because optical frequencies are where the word ‘invisibility’ is conventionally defined. Here we present the design of a non-magnetic cloak operating at optical frequencies. The principle and structure of the proposed cylindrical cloak are analysed, and the general recipe for the implementation of such a device is provided.
Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/8323771adf218e3d8b7fe835e4fe160019b782db
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In Aerospace Engineering
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- An optical cloak made of dielectrics. (2009, background): “Recently, a number of new forms of cloaking have been proposed to mitigate these constraints [13-18], relaxing the requirement of extreme material properties.”
- Transformation Electromagnetics: An Overview of the Theory and Applications (2010, methodology): “An optical-cloak design, with a reduced set of material parameters that did not require magnetic materials and utilized tiny metallic wire segments (i.e., nanowires), was presented in [ 11 ].”
- Metamaterials Application in Sensing (2012, neutral): “diffraction-limit breaking imaging [4–7], cloaking [8–10], etc.”
- Highly Sensitive Terahertz Metamaterial Sensor (2019, background): “Therefore, metamaterials have attracted the attention during the last years for different applications such as super lenses [3], super resolutions, invisibility cloaking [4], negative refraction [5], polarization rotation [6], source imaging [7], energy”