Infiltrated plasmonic photonic crystal cavity for sensing

Shruti "; Venus Dillu; R. K. Sinha

doi:10.1117/12.893754

7 September 2011 Infiltrated plasmonic photonic crystal cavity for sensing

Shruti ", Venus Dillu, R. K. Sinha

Proceedings Volume 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V; 81201F (2011) https://doi.org/10.1117/12.893754
Event: SPIE Photonic Devices + Applications, 2011, San Diego, California, United States

Abstract

A plasmonic cavity incorporating surface plasmon polariton(SPP) mode is proposed to be used as infiltrated sensor employing sub-wavelength confinement of light. Truly Plasmonic TM mode is obtained and the mode profile of the Plasmonic Photonic Crystal Cavity (PPCC) structure is shown using three dimensional Finite Difference Time Domain Method (3D-FDTD) method. The cavity length of the structure is optimized to obtain single mode localization of resonating wavelength and the change in the cut-off wavelength is observed by varying refractive indices of the content of air holes. A transverse magnetic (TM) Plasmonic bandgap of the structure is shown and hence, the transmission spectra, Quality factor are calculated.

Citation Download Citation

Shruti ", Venus Dillu, and R. K. Sinha "Infiltrated plasmonic photonic crystal cavity for sensing", Proc. SPIE 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V, 81201F (7 September 2011); https://doi.org/10.1117/12.893754

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