Nanooptics and photonics

Theoretical study and performance evaluation on plastic optical fiber surface plasmon resonance sensors
Varyshchuk V.I.1, Bobitski Ya.V.1,2
1 Department of Photonics, Lviv Polytechnic National
S. Bandery str. 12, Lviv, Ukraine. 
E-mail: vasyl.i.varyshchuk@lpnu.ua
2 Faculty of Mathematics and Natural Sciences , University of Rzeszow
al. Rejtana 16c, 35-959 Rzeszów, Poland

With the rapid advances in the technology of optical fibers, they begin often to be used as sensing elements for chemical and biological sensor systems [1, 2]. One of the most promising types of fiber optic sensors are sensors based on surface plasmon resonance (SPR), which provides changing the length of the sensor base, the ability of miniaturization of the measuring device and conduct remote measurements. It has the potential to significantly reduce the cost of biosensor systems based on SPR [3].
Based on the theoretical analysis of the light propagation in the optical fiber in this work we study the effectiveness of plastic based fiber SPR sensors. The obtained results show that the characteristics of these sensors are determined by the size and physical properties of the metal film, as well as by the parameters of the fiber, which should be taken into account at the stages of design and development of fiber-optic measuring systems based on SPR.
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3. Jorgenson, R.C.; Yee, S.S. Control of the dynamics range and sensitivity of a surface-plasmon resonance based fiber otpics sensor. Sens. Actuators B 1994, 43, 44–48.