Journal
JOURNAL OF APPLIED PHYSICS
Volume 105, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3132842
Keywords
geometrical optics; inhomogeneous media; optical waveguides
Categories
Funding
- National Science Foundation of China
- National Basic Research Program (973) of China [2004CB719802]
- Natural Science Foundation of Jiangsu Province [BK2008031]
- 111 Project [111-2-05]
- National Science Foundation of China [60871016, 60671015, 60621002]
- China Postdoctoral Science Foundation [20080441006]
- Inter-Discipline Science Foundation of Lanzhou University
- Natural Science Foundation of Gansu Province [0803RJZA029]
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We propose the design of arbitrary waveguide bends using the theory of geometrical optics. The designed electromagnetic wave bending structures are filled with inhomogeneous and isotropic materials, whose parameters can be linearly tuned for easy implementation. Dielectric materials can be used if reflection does not pose a problem. Full-wave simulation results validate the correctness of the design. Compared with the counterparts realized by the optical transformation, the proposed arbitrary bends are much easier for experimental verification and practical implementation.
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