Journal
JOURNAL OF MAGNETICS
Volume 20, Issue 2, Pages 110-113Publisher
KOREAN MAGNETICS SOC
DOI: 10.4283/JMAG.2015.20.2.110
Keywords
photonic crystal waveguides; slow light; tunability; magnetic fluid
Funding
- Natural Science Foundation of Shanghai [13ZR1427400]
- Shanghai Key Laboratory of Specialty Fiber Optics and Optical Access Networks [SKLSFO2014-05]
- Hujiang Foundation of China [B14004]
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Two kinds of magnetic fluids with different volume fractions are symmetrically filled into the W0.9 photonic crystal waveguide structure. The 2D plane-wave expansion method is used to investigate the slow light properties numerically. The constant group index criterion is employed to evaluate the slow light performance. The wavelength bandwidth Delta lambda centering at lambda(0) = 1550 nm varies from 32.4 to 44.2 nm when the magnetic field factor alpha(parallel to) changes from 0 to 1. And the corresponding normalized delay bandwidth product can be tuned from 0.221 to 0.258. For comparison and optimization, two infiltration cases are investigated and the more advantageous infiltration scheme is found.
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