Surface plasmon-polariton waves obliquely guided along interface containing periodicity direction of one-dimensional photonic crystal

Mehran Rasheed; Muhammad Faryad

doi:10.1117/12.2566348

20 August 2020 Surface plasmon-polariton waves obliquely guided along interface containing periodicity direction of one-dimensional photonic crystal

Mehran Rasheed, Muhammad Faryad

Author Affiliations +

Proceedings Volume 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII; 114621Y (2020) https://doi.org/10.1117/12.2566348
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Conference Poster

Abstract

We recently formulated the canonical boundary-value problem of propagation of surface plasmon-polariton (SPP) waves along the direction of periodicity of a one-dimensional photonic crystal. Here we present the general formulation of that canonical problem supporting the oblique propagation of SPP waves in the interface plane. The general dispersion equation has been obtained using the rigorous coupled-wave approach (RCWA) for the oblique propagation and numerically solved using the Muller’s method. The RCWA formulation is developed for the general eigenvalue problem solved here. A periodicity in the wavenumbers of the SPP waves was observed. Furthermore, the regions of high losses for the SPP waves, dubbed as plasmonic bandgaps, were observed in the photonic band diagram of the SPP waves. These plasmonic badngaps can be used to construct optical filters for the SPP waves.

Conference Presentation

Citation Download Citation

Mehran Rasheed and Muhammad Faryad "Surface plasmon-polariton waves obliquely guided along interface containing periodicity direction of one-dimensional photonic crystal", Proc. SPIE 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII, 114621Y (20 August 2020); https://doi.org/10.1117/12.2566348

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