Diffuse reflections by randomly gradient index metamaterials
Optics Letters, Vol. 35, Issue 6, pp. 808-810 (2010)
http://dx.doi.org/10.1364/OL.35.000808
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Abstract
We have demonstrated that a thin planar coating with randomly distributed index gradients can create diffuse reflections in front of a planar conducting sheet. This scheme is verified by two-dimensional near-field scanning measurement, in which the randomly gradient index coating is implemented by periodic crossed-I-shaped array whose unit cell’s dimension varies spatially. Some qualitative principles of choosing the distribution mode of random index gradient are presented.
© 2010 Optical Society of America
OCIS Codes
(290.1350) Scattering : Backscattering
(290.1990) Scattering : Diffusion
(160.3918) Materials : Metamaterials
ToC Category:
Scattering
History
Original Manuscript: November 24, 2009
Revised Manuscript: January 17, 2010
Manuscript Accepted: January 29, 2010
Published: March 4, 2010
Citation
Xin Mi Yang, Xiao Yang Zhou, Qiang Cheng, Hui Feng Ma, and Tie Jun Cui, "Diffuse reflections by randomly gradient index metamaterials," Opt. Lett. 35, 808-810 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-6-808
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