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Proceedings Paper

One-dimensional tunable surface plasmonic photonic crystal cavity
Author(s): Shruti .; Venus Dillu; R. Bhattacharyya; R. K. Sinha
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Paper Abstract

One-dimensional (1D) surface plasmonic (SP) nanostructured cavity for the sub-wavelength confinement of light is proposed. Since, the significant spatial confinement of the plasmonic structure is needed for the miniaturization of the device, thin silver metal sheet is used to get plasmonic mode of the cavity. 1D plasmonic photonic crystal structure is designed by placing a silver substrate film(εm) below the photonic crystal waveguide of one dimensional array of air holes in Si (εd=11.56 or nd=3.4) slab of finite thickness. TM mode with vertical electric field is investigated and it is observed that the mode remains dominant in the structure. Further, surface plasmonic nano cavity defect mode is studied by changing the cavity length which can be tuned for different wavelengths by changing the geometry of the structure.

Paper Details

Date Published: 23 August 2011
PDF: 6 pages
Proc. SPIE 8173, Photonics 2010: Tenth International Conference on Fiber Optics and Photonics, 81731J (23 August 2011); doi: 10.1117/12.899932
Show Author Affiliations
Shruti ., Delhi Technological Univ. (India)
Venus Dillu, Delhi Technological Univ. (India)
R. Bhattacharyya, Delhi Technological Univ. (India)
R. K. Sinha, Delhi Technological Univ. (India)

Published in SPIE Proceedings Vol. 8173:
Photonics 2010: Tenth International Conference on Fiber Optics and Photonics
Sunil K. Khijwania; Banshi D. Gupta; Bishnu P. Pal; Anurag Sharma, Editor(s)

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