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access icon free Terahertz plasmonic-like waveguide for integrated sensing applications

© The Institution of Engineering and Technology
Received 20/12/2012, Published

A new plasmonic-like waveguide structure is proposed for integrated terahertz refractive index sensing. The surface plasmon-like wave is an effective means for high sensitivity sensing in the terahertz range, but most of the reported configurations are based on free space excitation using a prism, that is not convenient for integration. In the proposed structure a dielectric waveguide is used to excite the sensor. Dispersion characteristics and the sensitivity of the structure are calculated using COMSOL full-wave simulations.

Inspec keywords: surface plasmons; integrated optics; plasmonics; microwave photonics; refractive index measurement; terahertz wave devices; optical waveguides; optical dispersion; optical sensors

Other keywords: terahertz plasmonic-like waveguide structure; integrated terahertz refractive index sensing; high sensitivity sensing; integrated sensing applications; dielectric waveguide; dispersion characteristics; surface plasmon-like wave; COMSOL full-wave simulations

Subjects: Optical waveguides; Optical waveguides and couplers; Sensing devices and transducers; Optical refractometry and reflectometry; Integrated optics; Integrated optics; Microwave photonics; Sensing and detecting devices; Optical variables measurement

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