Leaky Bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation

Abstract Dielectric multilayer structures with a grating profile on the top-most layer adds an additional degree of freedom to the phase matching conditions for Bloch surface wave excitation. The conditions for Bloch surface wave coupling can be achieved by rotating both polar and azimuthal angles....

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Autores principales:	Vijay Koju, William M. Robertson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ec23a7c6061249aa9c85742accc50901
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spelling	oai:doaj.org-article:ec23a7c6061249aa9c85742accc509012021-12-02T11:40:30ZLeaky Bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation10.1038/s41598-017-03515-02045-2322https://doaj.org/article/ec23a7c6061249aa9c85742accc509012017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03515-0https://doaj.org/toc/2045-2322Abstract Dielectric multilayer structures with a grating profile on the top-most layer adds an additional degree of freedom to the phase matching conditions for Bloch surface wave excitation. The conditions for Bloch surface wave coupling can be achieved by rotating both polar and azimuthal angles. The generation of Bloch surface waves as a function of azimuthal angle has similar characteristics to conventional grating coupled Bloch surface waves. However, azimuthally generated Bloch surface waves have enhanced angular sensitivity compared to conventional polar angle coupled modes, which makes them appropriate for detecting tiny variations in surface refractive index due to the addition of nano-particles such as protein molecules.Vijay KojuWilliam M. RobertsonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Vijay Koju William M. Robertson Leaky Bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation
description	Abstract Dielectric multilayer structures with a grating profile on the top-most layer adds an additional degree of freedom to the phase matching conditions for Bloch surface wave excitation. The conditions for Bloch surface wave coupling can be achieved by rotating both polar and azimuthal angles. The generation of Bloch surface waves as a function of azimuthal angle has similar characteristics to conventional grating coupled Bloch surface waves. However, azimuthally generated Bloch surface waves have enhanced angular sensitivity compared to conventional polar angle coupled modes, which makes them appropriate for detecting tiny variations in surface refractive index due to the addition of nano-particles such as protein molecules.
format	article
author	Vijay Koju William M. Robertson
author_facet	Vijay Koju William M. Robertson
author_sort	Vijay Koju
title	Leaky Bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation
title_short	Leaky Bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation
title_full	Leaky Bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation
title_fullStr	Leaky Bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation
title_full_unstemmed	Leaky Bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation
title_sort	leaky bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/ec23a7c6061249aa9c85742accc50901
work_keys_str_mv	AT vijaykoju leakyblochlikesurfacewavesintheradiationcontinuumforsensitivityenhancedbiosensorsviaazimuthalinterrogation AT williammrobertson leakyblochlikesurfacewavesintheradiationcontinuumforsensitivityenhancedbiosensorsviaazimuthalinterrogation
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Leaky Bloch-like surface waves in the radiation-continuum for sensitivity enhanced biosensors via azimuthal interrogation

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