Thin-ridge Silicon-on-Insulator waveguides with directional control of lateral leakage radiation

Naser Dalvand, Thach G. Nguyen, Ravi S. Tummidi, Thomas L. Koch, Arnan Mitchell

Research output: Contribution to journalArticle

16 Scopus citations


In this paper, we propose a Silicon-On-Insulator waveguide structure which when excited with TM guided light emits controlled TE polarized radiation from one side of the structure only. The validity of the proposed structure is analyzed using eigenmode expansion and supermode techniques. It is shown that care must be taken to select the gap between the radiating elements such that both the phase and the amplitude of the radiating modes are maintained along the propagation direction to achieve the desired directional control of radiation. Steps toward practical demonstration of the proposed structure are identified.

Original languageEnglish (US)
Pages (from-to)5635-5643
Number of pages9
JournalOptics Express
Issue number6
StatePublished - Mar 14 2011
Externally publishedYes


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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