TY - JOUR
T1 - Spectro-ellipsometric surface plasmon resonance sensor using a liquid crystal achromatic waveplate
AU - Watad, Ibrahim
AU - Abuleil, Marwan J.
AU - Abdulhalim, Ibrahim
N1 - Funding Information: Manuscript received January 31, 2020; revised March 22, 2020; accepted March 23, 2020. Date of publication March 30, 2020; date of current version April 13, 2020. This work was supported in part by the Israel Ministry of Science, Technology and Space and in part by the Israel Ministry of Agriculture. (Corresponding author: Ibrahim Watad.) The authors are with the Unit of Electro-Optics and Photonics Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel, and also with the School of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel (e-mail: watadib@post.bgu.ac.il; abuleil@post.bgu.ac.il; abdulhlm@bgu.ac.il). Publisher Copyright: © 1989-2012 IEEE.
PY - 2020/5/1
Y1 - 2020/5/1
N2 - Wavelength dependence of phase modulators has been one of the main challenges in spectroscopic ellipsometry/polarimetry (EP) which significantly complicates signals analysis. A known approach to overcome this complication is using rotatable polarizers. However, the use of rotatable polarizers induces mechanical vibrations and unnecessary errors to the system. In this work, a novel spectroscopic configuration to extract the spectral changes of the EP parameters applied to surface plasmon resonance (SPR) sensing is presented. The setup utilizes the integration of a recently developed achromatic variable liquid crystal waveplate to the SPR in Kretschmann-Raether configuration and using three phase shifts to extract the EP parameters of the SPR sample.
AB - Wavelength dependence of phase modulators has been one of the main challenges in spectroscopic ellipsometry/polarimetry (EP) which significantly complicates signals analysis. A known approach to overcome this complication is using rotatable polarizers. However, the use of rotatable polarizers induces mechanical vibrations and unnecessary errors to the system. In this work, a novel spectroscopic configuration to extract the spectral changes of the EP parameters applied to surface plasmon resonance (SPR) sensing is presented. The setup utilizes the integration of a recently developed achromatic variable liquid crystal waveplate to the SPR in Kretschmann-Raether configuration and using three phase shifts to extract the EP parameters of the SPR sample.
KW - Surface plasmon polaritons
KW - optical sensors
KW - spectroscopic ellipsometry
KW - thin films
UR - http://www.scopus.com/inward/record.url?scp=85084114779&partnerID=8YFLogxK
U2 - https://doi.org/10.1109/LPT.2020.2984015
DO - https://doi.org/10.1109/LPT.2020.2984015
M3 - Article
SN - 1041-1135
VL - 32
SP - 550
EP - 553
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 9
M1 - 9050495
ER -