Watching outside while under a carpet cloak of invisibility

Details Watching outside while under a carpet cloak of invisibility Watching outside while under a carpet cloak of invisibility

2010-09-15

arxiv.org/abs/1009.2849v2

Physics

Optics

18 pages, 4 figures. This is the second version of arXiv:1009.2849, which was submitted on Sept.15, 2010

Scientific paper

We demonstrate in this letter a unique approach for watching outside while hiding in a carpet cloaking based on transformation optics. Unlike conventional carpet cloaking, which screens all the incident electromagnetic waves, we break the cloak and allow incident light get into the carpet. Hence outside information is detected inside the cloak. To recover the invisible cloaking, complementary techniques are applied in the broken space. Consequently, a hiding-inside-and-watching-outside (HIWO) carpet cloak is sewed, which works as a perfectly invisible cloaking and allows surveillance of the outside at the same time. Our work provides a strategy for ideal cloak with "hiding" and "watching" functions simultaneously.

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