| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Improved Microfluidic Coupled-Cavity Waveguides for Slow Light Transmission |
| LÜ Shu-Yuan, ZHAO Jian-Lin, ZHANG Dong |
| Institute of Optical Information Science and Technology, Shanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an 710072 |
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| Cite this article: |
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LÜ, Shu-Yuan, ZHAO Jian-Lin et al 2010 Chin. Phys. Lett. 27 034205 |
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Abstract We present a method based on the selective liquid infiltration in air holes to produce slow light in a coupled-cavity waveguide structured by two-dimensional photonic crystal and analyze the slow light propagation in the coupled-cavity waveguide with triangular lattice. The group velocity profile of different coupled-cavity waveguides, obtained by the selective liquid infiltration in the holes between the cavities in waveguide and the increased radius of the first row of holes adjacent to the waveguide, is evaluated by using both the plane-wave expansion method and a tight binding model. We determine the optimal parameters to reduce the group velocity. Using a simpler coupled-cavity waveguide structure we obtain smaller group velocity compared to most investigations.
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| Keywords:
42.70.Qs
42.82.Et
42.25.Dd
73.63.-b
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Received: 30 September 2009
Published: 09 March 2010
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| PACS: |
42.70.Qs
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(Photonic bandgap materials)
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42.82.Et
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(Waveguides, couplers, and arrays)
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42.25.Dd
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(Wave propagation in random media)
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73.63.-b
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(Electronic transport in nanoscale materials and structures)
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