SPR sensor based on a bi-diffractive grating

0086500 - ÚFE 2008 RIV US eng C - Conference Paper (international conference)
Adam, Pavel - Dostálek, Jakub - Telezhniková, Olga - Homola, Jiří
SPR sensor based on a bi-diffractive grating.
[SPR senzor založený na bi-difraktivní mřížce.]
Optical Sensing Technology and Applications. Bellingham: SPIE - The International Society for Optical Engineering, 2007 - (Baldini, F.; Homola, J.; Liberman, R.; Miler, M.), s. 65851y.1-6581y.9. Proceedings of SPIE, Vol. 6585. ISBN 978-0-8194-6713-3. ISSN 0277-786X.
[SPIE Europe's International Congress on Optics and Optoelectronics - ICOO 2007. Prague (CZ), 16.04.2007-19.04.2007]
R&D Projects: GA AV ČR(CZ) IAA400500507
Institutional research plan: CEZ:AV0Z20670512
Keywords : surface plasmons * optical sensors * biosensors * spectroscopy
Subject RIV: JB - Sensors, Measurment, Regulation

We report a SPR sensor based on two-plasmon-spectroscopy on a Bragg-scattering grating and investigate its ability to distinguish contributions to sensor response due to surface refractive index changes and due to bulk refractive index changes. Theoretical analysis yielding an estimate of an error of such decomposition is presented and compared to a sensor based on simultaneous excitation of short-range and long-range surface plasmons on a thin metallic layer.

Byl předveden SPR senzor s braggovsky rozptýlenymi povrchovými plazmony umožňující separaci senzorové odezvy do odezvy spojené se změnami indexu lomu v tenké povrchové vrstvě a v celém dielektriku. Je provedena teoretická analýza dekompozice signálu, a tato porovnána se senzorem založeným na simultánní excitaci short-range a long-range povrchových plazmonů.
Permanent Link: http://hdl.handle.net/11104/0148749