Arbitrary waveguide bends using isotropic and homogeneous metamaterial

Weiqiang Ding; Donghua Tang; Yan Liu; Lixue Chen; Xiudong Sun
January 2010
Applied Physics Letters;1/25/2010, Vol. 96 Issue 4, p041102
Academic Journal
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.


Related Articles

  • Compact and low crosstalk waveguide crossing using impedance matched metamaterial. Weiqiang Ding; Donghua Tang; Yan Liu; Lixue Chen; Xiudong Sun // Applied Physics Letters;3/15/2010, Vol. 96 Issue 11, p111114 

    A waveguide crossing mechanism based on metamaterial is proposed and numerically investigated using finite difference in time domain method. The waveguide cross is filled with impedance matched metamaterial, which has a large absolute value of refractive index, and effectively suppresses the...

  • Confining light in two-dimensional slab photonic crystal waveguides with metal plates. Bing Wang; Guo Ping Wang // Applied Physics Letters;5/8/2006, Vol. 88 Issue 19, p193128 

    Light cannot be strongly confined in two-dimensional (2D) slab photonic crystal waveguides (PCWs) when the slab thickness is less than half a wavelength. By using the finite-difference time-domain method, we theoretically demonstrate that two metal plates clad 2D PCWs (MCPCWs) constructed by...

  • Efficient coupling of hybrid optical waveguide with a sharp bend structure for high integration. Jung, Eun; Lee, Woo-Jin; Kim, Myung; Hwang, Sung; Rho, Byung // Optical & Quantum Electronics;Oct2014, Vol. 46 Issue 10, p1373 

    A hybrid optical waveguide with a $$90^{\circ }$$ sharp bend comprising a dielectric straight waveguide, a tapered dielectric strip waveguide, and a microscale metal gap waveguide is proposed, modeled, fabricated, and characterized with the aim of improving the efficiency of light coupling...

  • Computation of the Filtering Properties of Photonic Crystal Waveguide Discontinuities Using the Mode Matching Method. Theoharidis, Athanasios; Kamalakis, Thomas; Neokosmidis, Ioannis; Sphicopoulos, Thomas // Enformatika;2006, Vol. 18, p144 

    In this paper, the application of the Mode Matching (MM) method in the case of photonic crystal waveguide discontinuities is presented. The structure under consideration is divided into a number of cells, which supports a number of guided and evanescent modes. These modes can be calculated...

  • Mach—Zehnder interferometers in photonic crystals. Martínez, Alejandro; Sanchis, Pablo; Martí, Javier // Optical & Quantum Electronics;Jan2005, Vol. 37 Issue 1-3, p77 

    Photonic crystal technology allows the creation of optical waveguides with low sharp-bending losses as well as ultra-low group velocity. This last property is particularly interesting to develop highly-compact optical devices based on the controlled modification of the optical phase of the...

  • Nanoplasmonic triple-wavelength demultiplexers in two-dimensional metallic waveguides. Lu, H.; Liu, X.; Wang, L.; Mao, D.; Gong, Y. // Applied Physics B: Lasers & Optics;Jun2011, Vol. 103 Issue 4, p877 

    novel kind of plasmonic wavelength demultiplexers (WDMs) based on two-dimensional metal-insulator-metal waveguides with side coupled nanocavities (SCNCs) is proposed and numerically investigated. The WDMs contain three waveguide output channels, each of which functions as a dual-stopband...

  • Study the coupled-cavity waveguides photonic crystal power splitter. CHEN Yan-bin; XU Xu-ming; LI Wei // Advanced Materials Research;2014, Issue 900, p222 

    We propose a photonic crystal power splitter that allows the electromagnetic waves with a phase shift of 180° between output signals. The splitter consists of two parallel coupled-cavity waveguides placed in proximity. On the basis of the guided mode propagation analysis method, the...

  • High-quality-factor photonic crystal heterostructure laser. Shih, M. H.; Kuang, Wan; Mock, Adam; Bagheri, Mahmood; Hwang, E. H.; O’Brien, J. D.; Dapkus, P. D. // Applied Physics Letters;9/4/2006, Vol. 89 Issue 10, p101104 

    A high-quality-factor (Q) photonic crystal heterostructure laser was designed and characterized. Good agreement was obtained between the experimental lasing data and three-dimensional finite-difference time-domain numerical predictions.

  • Full-wave verification of the fundamental properties of left-handed materials in waveguide configurations. Caloz, C.; Chang, C.-C.; Itoh, T. // Journal of Applied Physics;Dec2001, Vol. 90 Issue 11, p5483 

    The fundamental electromagnetic properties of left-handed materials (LHMs) are reviewed and verified by finite-element method full-wave analysis using rectangular waveguide structures loaded by a LHM and adopting an effective medium approach. The negative phase velocity, positive intrinsic...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics