期刊
APPLIED PHYSICS LETTERS
卷 96, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3298367
关键词
bending; finite difference time-domain analysis; impedance matching; light refraction; light transmission; metamaterials; optical waveguide theory; refractive index
资金
- National Natural Science Foundation of China [10874036]
- Development Program for Outstanding Young Teachers in Harbin Institute of Technology
- Program of Excellent Team in Harbin Institute of Technology
We propose a method for arbitrary waveguide bends using impedance matched metamaterial with negative index of refraction. We analyze the operation principles and verify the performances using the finite difference in time domain method. Results show that nearly perfect transmission without mode distortion can be obtained when the bending angle changes within (0,180) degrees. The bending structure is very efficient and compact in size, and no anisotropic or inhomogeneous materials are required, which make the bend very easy in fabrication and application.
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