Abstract

A simple phase-shifted polarimetric scheme to extract light polarization changes induced by the sample in surface plasmon resonance (SPR) sensors is presented. The proposed method is based on the conventional Kretschmann–Raether configuration in the angular diverging beam mode using a single wavelength and a variable liquid crystal retarder. An experimental demonstration was performed using different aqueous solutions of ethylene glycol showing a sensitivity of 118.7 deg/refractive-index-unit (RIU) and a detection limit of $1.03\times {10}^{-7}\mathrm{RIU}$.

© 2019 Optical Society of America

Ultrahigh-sensitive plasmonic sensing of gas using a two-dimensional dielectric grating

Petr Hlubina, Petra Urbancova, Dusan Pudis, Matej Goraus, Daniel Jandura, and Dalibor Ciprian
Opt. Lett. 44(22) 5602-5605 (2019)

Fiber optic surface plasmon resonance sensor based on a silver-coated large-core suspended-core fiber

Xian Zhang, Xiao-Song Zhu, and Yi-Wei Shi
Opt. Lett. 44(18) 4550-4553 (2019)

Surface plasmon resonance refractive index sensor based on fiber-interface waveguide inscribed by femtosecond laser

Yunfang Zhang, Changrui Liao, Chupao Lin, Yu Shao, Ying Wang, and Yiping Wang
Opt. Lett. 44(10) 2434-2437 (2019)

Thin-film tunable bandpass filter for spectral shift detection in surface plasmon resonance sensors

Wen-Kai Kuo, Wei-Shin Lin, and Shi-Wei Yang
Opt. Lett. 45(1) 65-68 (2020)

Polarization sensitive phase-shifting Mirau interferometry using a liquid crystal variable retarder

Petr Bouchal, Radek Čelechovský, and Zdeněk Bouchal
Opt. Lett. 40(19) 4567-4570 (2015)