| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Modal Characterization of a Planar Waveguide in Bismuth Borate Crystal |
| WANG Lei1,2, LU Qing-Ming3, MA Hong-Ji4 |
| 1School of Physics, Shandong University, Jinan 2501002State Key Laboratory of Crystal Materials, Shandong University, Jinan 2501003School of Chemistry and Chemical Engineering, Shandong University, Jinan 2501004State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 |
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| Cite this article: |
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WANG Lei, LU Qing-Ming, MA Hong-Ji 2009 Chin. Phys. Lett. 26 066102 |
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Abstract We report on the fabrication and modal property studies of planar waveguide structure in x-cut bismuth borate biaxial crystal formed by He ion implantation with triple energies. The prism coupling method is used to measure the effective refractive indices of this waveguide. We reconstruct the refractive index distribution of this waveguide by the reflectivity calculation method. Our results indicate that a broadened optical barrier is produced by the multiple He ion implantations. The so-called tunneling effect of the non-stationary mode in this type of barrier waveguide is presented by the well-known finite difference beam propagation method.
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| Keywords:
61.80.Jh
42.65.Wi
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Received: 07 October 2008
Published: 01 June 2009
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