Intrinsic temperature sensitivity of tilted fiber Bragg grating based surface plasmon resonance sensors | Zendy

Liyang Shao | Zendy; Yanina Shevchenko | Zendy; Jacques Albert | Zendy

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Intrinsic temperature sensitivity of tilted fiber Bragg grating based surface plasmon resonance sensors

Author(s) -

Liyang Shao,

Yanina Shevchenko,

Jacques Albert

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.011464

Subject(s) - materials science , surface plasmon resonance , refractive index , fiber bragg grating , optics , fiber optic sensor , core (optical fiber) , resonance (particle physics) , surface plasmon , optical fiber , grating , photonic crystal fiber , optoelectronics , localized surface plasmon , plasmon , wavelength , nanotechnology , nanoparticle , physics , particle physics , composite material

A miniature surface plasmon resonance sensor is fabricated from a gold-coated standard optical fiber with an in-core tilted fiber Bragg grating fabricated by UV exposure. The sensor has a measured refractive index sensitivity of 571.5 nm/RIU (refractive index unit) at constant temperature. We show here that the intrinsic temperature sensitivity of this device is reduced to less than 6.3 pm/degrees C (between 23 degrees C and 59 degrees C) when measurements are referenced to a core mode reflection resonance of the grating. This residual sensitivity is essentially that of the 50 nm thick deposited gold layer but it is bigger by one order of magnitude than the expected value (0.51 pm/degrees C) for a gold-water interface.

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