2017
Витрик О. Б., Дышлюк А. В., Кульчин Ю. Н., Мицай Е. В., Черепахин А. Б., Catherine Branger, Hugues Brisset, Tanta Verona Iordache, Andrei Sarbu
Journal of Lightwave Technology, Q1
Anton Dyshlyuk, Oleg Vitrik, Yuri Kulchin, Eugeniy Mitsai, Artem Cherepakhin, Catherine Branger, Hugues Brisset, Tanta Verona Iordache, Andrei Sarbu / Numerical and experimental investigation of surface plasmon resonance excitation using whispering gallery modes in bent metal-clad single-mode optical fiber // Journal of Lightwave Technology – Vol. 35 – Iss. 24. – 2017. – pp. 5425 - 5431
Volume 35, Issue 24, 10 November, 2017, pp. 5425 - 5431
Статьи в журналах
We present a numerical and experimental study of surface plasmon resonance (SPR) excitation in a bent single-mode optical fiber with metalized cladding. It is shown that with a suitable combination of bend radius and metal film thickness surface plasmon waves can be excited in the film as a result of coupling between fundamental and surface plasmon modes via whispering gallery modes supported by the bent fiber cladding. The coupling brings about a dip in the transmission spectrum at the resonant wavelength which is strongly dependent on the ambient refractive index. This enables one to build a fiber optic SPR-refractometer with a standard single-mode fiber without breaking integrity of the fiber or using any additional elements. Refractometric sensitivity of ~5 μm per refractive index unit and resolution of ~4·10-6 are experimentally demonstrated for the measured refractive index around 1.43. The reported results may find wide application in bio- and chemosensing.
https://doi.org/10.1109/JLT.2017.2772299