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Sensing applications on refractive index based on metal gratings
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering. Zhejiang University, Hangzhou, China.
2006 (English)In: Proc. Int. Symp. Biophotonics, Nanophotonics Metamaterials, 2006, 267-271 p.Conference paper, Published paper (Refereed)
Abstract [en]

Sensing applications on refractive index based on metal gratings are investigated. The excitation of surface plasmon on a metal grating placed in planer or conical mounting is examined. Numerical results are compared with experimental data. When a TM wave illuminates a metal grating, total or partial absorption of incident light occurs at angles of incidence at which the surface plasmon waves are excited. A conical mounting is introduced in the sensing application in which an enhancement of TM-TE mode conversion is observed in close vicinity to the resonance angle at which almost of the reflected light is in TE polarization. This, hence, makes the reciprocal of the TM-wave efficiency a good measure in finding the angles of incidence at which the surface waves are excited, which leads to a precise measurement. Yasuura's modal-expansion method is introduced in the numerical simulation. The setup for sensing application is represented in details.

Place, publisher, year, edition, pages
2006. 267-271 p.
Series
Proceedings of International Symposium on Biophotonics, Nanophotonics and Metamaterials, Metamaterials 2006
Keyword [en]
Absorption, Computer simulation, Diffraction gratings, Fluid dynamics, Fluid mechanics, Light refraction, Materials science, Metals, Optical properties, Photonics, Plasmons, Refractive index, Refractometers, Stereochemistry, Storage allocation (computer), Surface waves, (1 1 0) surface, Angles of incidence (AOI), Bio photonics, Conical mounting, expansion methods, Experimental data, Incident light, International symposium, Metal gratings, Metamaterials (MTM), Nano-photonics, numerica l results, Numerical simulations, Partial absorption, Precise measurements, Resonance angle, Sensing applications, Surface plasmon (SP), Surface plasmon waves (SPW), TE modes, Transverse electric (TE) polarizations, wave efficiency, Waves
National Category
Nano Technology Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-155346DOI: 10.1109/METAMAT.2006.335055ISI: 000247372900074Scopus ID: 2-s2.0-46149091543ISBN: 0780397746 (print)ISBN: 9780780397743 (print)OAI: oai:DiVA.org:kth-155346DiVA: diva2:763687
Conference
International Symposium on Biophotonics, Nanophotonics and Metamaterials, Metamaterials 2006, 16-18 October 2006, Hangzhou, China
Note

QC 20141117

Available from: 2014-11-17 Created: 2014-11-05 Last updated: 2015-10-29Bibliographically approved

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CiteExportLink to record
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