Transformation bending device emulated by graded-index waveguide

Authors :: Wang, Y.
Sheng, C.
Liu, H.
Zheng, Y. J.
Zhu, C.
Wang, S. M.
Zhu, S. N.
Publication Year :: 2012
Abstract: We demonstrate that a transformation device can be emulated using a gradient-index waveguide. The effective index of the waveguide is spatially varied by tailoring a gradient thickness dielectric waveguide. Based on this technology, we demonstrate a transformation device guiding visible light around a sharp corner, with low scattering loss and reflection loss. The experimental results are in good agreement with the numerical results.<br />Comment: This paper is published at Optics Express 20, 13006 (2012)

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