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Determination of the Refractive Index Profile of a Polymer Waveguide by Photobleaching |
SHAN Ji-Xiang;SHEN Qi-Shun;ZHANG Ai-Hua;CAO Zhuang-Qi;CHEN Ying-Li |
Department of Applied Physics, Jiao Tong University, Shanghai 200030 |
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Cite this article: |
SHAN Ji-Xiang, SHEN Qi-Shun, ZHANG Ai-Hua et al 2000 Chin. Phys. Lett. 17 433-434 |
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Abstract The shrinkage effect of polymer films, which was demonstrated in our photobleaching experiment, can be fitted approximately by an exponentially decaying function. After taking the shrinkage effect into account, the index profile of the polymer waveguide was determined to be a Fermi function with the help of the m-line method and the exact transfer matrix theory.
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Keywords:
42.82.Cr
42.65.Wi
42.70.Jk
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Published: 01 June 2000
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PACS: |
42.82.Cr
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(Fabrication techniques; lithography, pattern transfer)
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42.65.Wi
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(Nonlinear waveguides)
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42.70.Jk
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(Polymers and organics)
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