Abstract
We propose the general concept of cloaking a sensor without affecting its capability to receive, measure, and observe an incoming signal. This may be obtained by using a plasmonic sensor, based on cloaking, made of materials available in nature at infrared and optical frequencies, or realizable as a metamaterial at lower frequencies. The result is a sensing system that may receive and transmit information, while its presence is not perceived by the surrounding, which may be of fundamental importance in a wide range of biological, optics, physics, and engineering applications.
- Received 6 February 2009
DOI:https://doi.org/10.1103/PhysRevLett.102.233901
©2009 American Physical Society
Viewpoint
Seeing without being seen
Published 8 June 2009
Materials with unusual optical properties may allow the construction of sensors surrounded by a cloaking shell that makes the detectors undetectable.
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