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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 1 — Jan. 14, 2013
  • pp: 796–803

Macroscopic broadband optical escalator with force-loaded transformation optics

Dongliang Gao, Cheng-Wei Qiu, Lei Gao, Tiejun Cui, and Shuang Zhang  »View Author Affiliations

Optics Express, Vol. 21, Issue 1, pp. 796-803 (2013)

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Transformation optics enables one to guide and control light at will using metamaterials. However the designed device is deterministic and not flexible for different objects. Based on force-loaded transformation optics we propose a force-induced transformational device, which can realize dynamic escalator metamorphosing continuously between optical elevator and invisibility cloak. This escalator can visually lift up and down the perceived height of a plane fixed in space by controlling the forces loaded in different directions. Or conversely, the escalator can physically lift up and down a plane while visually maintaining the same height to an outside observer. One can quickly adjust this device to the required demand without changing the background index, while the usual transformation cloak will be detectable due to the lateral shift from mismatched background. The schematic is self-adaptive, multi-functional, and free of metamaterial or nanofabrication. Our work opens a new perspective in controlling light dynamically and continuously, empowering unprecedented applications in military cloak, optic communication, holographic imaging, and phase-involved microtechnique.

© 2013 OSA

OCIS Codes
(120.4820) Instrumentation, measurement, and metrology : Optical systems
(160.1190) Materials : Anisotropic optical materials

ToC Category:
Physical Optics

Original Manuscript: November 12, 2012
Revised Manuscript: December 21, 2012
Manuscript Accepted: December 24, 2012
Published: January 8, 2013

Dongliang Gao, Cheng-Wei Qiu, Lei Gao, Tiejun Cui, and Shuang Zhang, "Macroscopic broadband optical escalator with force-loaded transformation optics," Opt. Express 21, 796-803 (2013)

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