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Unusual bound modes in asymmetrically graded planar waveguides

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Abstract.

 We show analytically that for certain asymmetrically graded-index planar waveguides at the cutoff point where the effective refractive index of a mode coincides with the index of the substrate, there exist unusual bound modes. We have calculated the refractive-index profile that makes these modes possible.

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Authors and Affiliations

  1. Istituto di Cibernetica del CNR, via Toiano 6, I-80072 Arco Felice, Italy (E-mail: DENICOLA@axpnal.na.infn.it), , , , , , IT

    S. De Nicola

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  1. S. De Nicola
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Received: 20 July 1996

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Nicola, S. Unusual bound modes in asymmetrically graded planar waveguides. Appl Phys B 64, 485–486 (1997). https://doi.org/10.1007/s003400050203

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  • DOI: https://doi.org/10.1007/s003400050203

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