A theoretical comparison of strip and vertical slot-waveguide

Alvarez, Jesús; Vivien, Laurent; Marris-Morini, Delphine; Angulo Barrios, Carlos y Hill, Daniel (2008). A theoretical comparison of strip and vertical slot-waveguide. En: "Trends in Nanotechnology (TNT), 2008", 01/09/2008-05/09/2008, Oviedo, España.

Descripción

Título: A theoretical comparison of strip and vertical slot-waveguide
Autor/es:
  • Alvarez, Jesús
  • Vivien, Laurent
  • Marris-Morini, Delphine
  • Angulo Barrios, Carlos
  • Hill, Daniel
Tipo de Documento: Ponencia en Congreso o Jornada (Póster)
Título del Evento: Trends in Nanotechnology (TNT), 2008
Fechas del Evento: 01/09/2008-05/09/2008
Lugar del Evento: Oviedo, España
Título del Libro: Proceedings of the International Conference Trends in Nanotechnology 2008
Fecha: 2008
Materias:
Escuela: Facultad de Ciencias de la Actividad Física y del Deporte (INEF) (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

For biosensing applications where small refractive index variations of the surrounding medium are monitored, light needs to have a strong interaction with such a surrounding biological medium. This is not the case for classical rib and strip waveguides where light is predominantly guided in the high index material. However, in slot waveguides, light is confined in a low index slot region sandwiched between two high index rails and due to the discontinuity of the electric field at the interface between the rails and slot, a significant fraction of the electromagnetic field is localized in the slot. As such slot waveguides present an interesting alternative for biosensing applications especially when made using silicon nitride which permits slot widths of up to 200nm and as such reachable fabrication tolerances, and reduced propagation losses compared to silicon slot waveguides with its higher refractive index contrast. Furthermore, for biosensing, the wider slot facilitates sample transport and using a multiple-slot structure, further enhancement of the optical confinement in low index slot regions is possible. In this paper we present work in progress of theoretical modeling for strip, slot and multiple-slot waveguides and compare their characteristics for sensing purposes.

Más información

ID de Registro: 4144
Identificador DC: http://oa.upm.es/4144/
Identificador OAI: oai:oa.upm.es:4144
URL Oficial: http://tntconf.org/2008/posters.php?conf=08
Depositado por: Memoria Investigacion
Depositado el: 17 Sep 2010 09:22
Ultima Modificación: 20 Abr 2016 13:28
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