Spectro-Ellipsometric Surface Plasmon Resonance Sensor Using a Liquid Crystal Achromatic Waveplate

被引：8

作者：

Watad, Ibrahim ^{[1
,2
]}

Abuleil, Marwan J. ^{[1
,2
]}

Abdulhalim, Ibrahim ^{[1
,2
]}

机构：

[1] Ben Gurion Univ Negev, Unit Electroopt & Photon Engn, IL-8410501 Beer Sheva, Israel

[2] Ben Gurion Univ Negev, Sch Elect & Comp Engn, IL-8410501 Beer Sheva, Israel

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2020年 / 32卷 / 09期

关键词：

Optical polarization; Optical retarders; Optical fibers; Sensors; Phase measurement; Light sources; Plasmons; Surface plasmon polaritons; spectroscopic ellipsometry; optical sensors; thin films; PHASE; ENHANCEMENT;

D O I：

10.1109/LPT.2020.2984015

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：550 / 553

页数：4

共 19 条

[1] Surface plasmon resonance for biosensing: A mini-review [J].