Phase interrogation SPR sensing based on white light polarized interference for wide dynamic detection range

Abstract

A phase surface plasmon resonance (SPR) sensing technology based on white light polarized interference in common-path geometry is reported. A halogen lamp is used as the excitation source of the SPR sensor. The fixed optical path difference (OPD) between p- and s-polarized light is introduced by a birefringence crystal to produce sinusoidal spectral interference fringes. The SPR phase is accurately extracted from the interference fringes using a novel iterative parameter-scanning cross-correlation algorithm. The dynamic detection range is expanded by tracking the best SPR wavelength, which is identified using a window Fourier algorithm. The experimental results show that the sensitivity of this SPR system was 1.3 × 10−7 RIU, and the dynamic detection range was 0.029 RIU. This sensor, not only simple to implement and cost efficient, requires no modulators.

Publication DOI: https://doi.org/10.1364/OE.382242
Divisions: Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement An OSA-formatted open access journal article PDF may be governed by the OSA Open Access Publishing Agreement signed by the author and any applicable copyright laws. Authors and readers may use, reuse, and build upon the article, or use it for text or data mining without asking prior permission from the publisher or the Author(s), as long as the purpose is non-commercial and appropriate attribution is maintained.
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Full Text Link:
Related URLs: https://www.osa ... RI=oe-28-3-3442 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2020-01-24
Accepted Date: 2020-01-03
Authors: Zeng, Youjun
Wang, Xueliang
Zhou, Jie
Miyan, Ruibiao
Qu, Junle
Ho, Ho-pui
Zhou, Kaiming ( 0000-0002-6011-1912)
Gao, Bruce Zhi
Shao, Yonghong

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