Photonic crystal slab waveguide-based infiltrated liquid sensors: design and analysis

Shruti Singh; Ravindra K. Sinha; Ragunath Bhattacharyya

doi:10.1117/1.3574182

1 January 2011 Photonic crystal slab waveguide-based infiltrated liquid sensors: design and analysis

Shruti Singh, Ravindra K. Sinha, Ragunath Bhattacharyya

Author Affiliations +

Journal of Nanophotonics, Vol. 5, Issue 1, 053505 (January 2011). https://doi.org/10.1117/1.3574182

Abstract

Infiltrated liquid sensors based on a 2D photonic crystal waveguide were devised. This waveguide is designed by taking into account lowering of the radius of the central air holes in a single row and the optical resonance shifts due to refractive index change of these holes by selectively filling with different liquids. The transmission spectrum of the infiltrated liquid sensor was obtained with the use of a finite difference time domain method. At the working wavelength of 1550 nm, the waveguide mode gap edge shifts with sensitivity of 200 nm per refractive index unit. The mode gap shifts are consistent with dispersion diagrams.

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Shruti Singh, Ravindra K. Sinha, and Ragunath Bhattacharyya "Photonic crystal slab waveguide-based infiltrated liquid sensors: design and analysis," Journal of Nanophotonics 5(1), 053505 (1 January 2011). https://doi.org/10.1117/1.3574182

Published: 1 January 2011

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