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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 36, Iss. 11 — Jun. 1, 2011
  • pp: 2059–2061

Three-dimensional polarization-independent visible-frequency carpet invisibility cloak

Joachim Fischer, Tolga Ergin, and Martin Wegener  »View Author Affiliations


Optics Letters, Vol. 36, Issue 11, pp. 2059-2061 (2011)
http://dx.doi.org/10.1364/OL.36.002059


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Abstract

We miniaturize all features in a previously introduced polarization-independent three-dimensional carpet invisibility cloak by more than a factor of 2. This leads to operation wavelengths in the visible. The structures are characterized by electron and optical microscopy. In contrast to our previous work at IR wavelengths, we can directly measure two-dimensional images at visible frequencies, perform control experiments from the backside, and compare the images with theory. We find excellent agreement. Furthermore, we study the wavelength dependence in the range from 900 nm down to 500 nm . Cloaking action deteriorates as the woodpile stop band at around 575 nm is approached.

© 2011 Optical Society of America

OCIS Codes
(080.2710) Geometric optics : Inhomogeneous optical media
(160.1245) Materials : Artificially engineered materials
(160.3918) Materials : Metamaterials
(160.5298) Materials : Photonic crystals
(230.3205) Optical devices : Invisibility cloaks

ToC Category:
Materials

History
Original Manuscript: March 8, 2011
Revised Manuscript: April 27, 2011
Manuscript Accepted: April 28, 2011
Published: May 27, 2011

Citation
Joachim Fischer, Tolga Ergin, and Martin Wegener, "Three-dimensional polarization-independent visible-frequency carpet invisibility cloak," Opt. Lett. 36, 2059-2061 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-11-2059

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