Long-range surface plasmon-polariton waveguide sensors with a Bragg grating in the asymmetric double-electrode structure
Year: 2009
Type: article
Abstract: We propose a Bragg grating resonance sensor based on long-range surface plasmon-polaritons (LRSPP) excited on an asymmetric double-electrode waveguide structure. The proposed LRSPP waveguide sensor utilizes spectral resonance of the asymmetric double-electrode structure by adding a Bragg grating layer on the top surface of the metal slab. We have numerically estimated the bulk index resolution and thickness detection limit of a target biomolecule layer under 30 dB total propagation loss. The sub-mum fluidic channel between the two metal layers always experiences a highly confined LRSPP mode excited by end-fire coupling with optical fibers, therefore the proposed LRSPP sensor platform can be applied to a variety of integrated sensor-chip scenarios.
Source: Optics Express
DOI: 10.1364/oe.17.010606
Authors: Yang Hyun Joo, Seok Ho Song, Robert Magnusson
Institutions: Hanyang University, The University of Texas at Arlington
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W2001978193