Macroscopic invisibility cloaking of visible light
Research output: Contribution to journal › Article › peer-review
Authors
Colleges, School and Institutes
External organisations
- Technical University of Denmark
- Imperial College London
Abstract
Invisibility cloaks, which used to be confined to the realm of fiction, have now been turned into a scientific reality thanks to the enabling theoretical tools of transformation optics and conformal mapping. Inspired by those theoretical works, the experimental realization of electromagnetic invisibility cloaks has been reported at various electromagnetic frequencies. All the invisibility cloaks demonstrated thus far, however, have relied on nano-or micro-fabricated artificial composite materials with spatially varying electromagnetic properties, which limit the size of the cloaked region to a few wavelengths. Here, we report the first realization of a macroscopic volumetric invisibility cloak constructed from natural birefringent crystals. The cloak operates at visible frequencies and is capable of hiding, for a specific light polarization, three-dimensional objects of the scale of centimetres and millimetres. Our work opens avenues for future applications with macroscopic cloaking devices. © 2011 Macmillan Publishers Limited. All rights reserved.
Bibliographic note
Copyright 2011 Elsevier B.V., All rights reserved.
Details
Original language | English |
---|---|
Article number | 176 |
Journal | Nature Communications |
Volume | 2 |
Issue number | 1 |
Publication status | Published - 4 Jan 2011 |