Integrated Tunable Optofluidics Optical Filter Based on MIM Side-Coupled-Cavity Waveguide

A tunable wavelength filter based on plasmonic metal–dielectric–metal waveguide with optofluidics pump system has been proposed and numerically investigated. The finite difference time domain method with perfectly matched layer-absorbing boundary condition is adopted to simulate and study their prop...

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Bibliographic Details
Published inPlasmonics (Norwell, Mass.) Vol. 7; no. 4; pp. 603 - 607
Main Authors Yu, Zhe, Liang, Ruisheng, Chen, Pixin, Huang, Qiaodong, Huang, Tingting, Xu, Xingkai
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.12.2012
Subjects
Biochemistry
Biological and Medical Physics
Biophysics
Biotechnology
Chemistry
Chemistry and Materials Science
Nanotechnology
Optofluidics
Plasmonic waveguide
Integrated optics devices
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Summary:A tunable wavelength filter based on plasmonic metal–dielectric–metal waveguide with optofluidics pump system has been proposed and numerically investigated. The finite difference time domain method with perfectly matched layer-absorbing boundary condition is adopted to simulate and study their properties. An analytical solution to the resonant condition of the structure is derived by means of the cavity theory. It is found that the resonant wavelength of the filter is easily tuned in a broadband by manipulating the fluid filled in the cavity. Both analytical and simulative results reveal that the resonant wavelengths are proportional to the volume and refractive index of liquid in the cavity and are related to the structure of the filter. The resonant wavelengths of this structure can be changed from 1,106 to around 1,800 nm in this paper. The waveguide filter may become a choice for the design of devices in highly integrated optical circuits.
ISSN:1557-1955
1557-1963
DOI:10.1007/s11468-012-9348-2