Finite Element Eigenmode Analysis of Hybrid Surface Phonon Polariton Infrared Waveguides

Abstract

Metal losses lead to unacceptably low propagation lengths in terahertz (THz) and long-wave infrared (LWIR) waveguides. While surface plasmon polariton (SPP) based waveguides provide relatively good confinement and attenuation in the near-infrared (IR) and visible, they are insufficiently bound to the surface in the THz and LWIR. We study using surface phonon polaritons (SPhP) for waveguiding at these frequencies. An eigenmode approach was applied to model a hybrid waveguide structure in the long-wave infrared. The results show that phonon-coupled hybrid waveguide of silicon carbide (SiC), benzocyclobutene (BCB) and gold (Au) exhibit enhanced propagation length and confinement at LWIR.

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Hybrid waveguide; Infrared waveguide; Phonon

International Standard Book Number (ISBN)

978-163266678-9

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 The Applied Computational Electromagnetics Society (ACES), All rights reserved.

Publication Date

01 Jan 2014

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