Abstract
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.
Original language | American English |
---|---|
Article number | 9050495 |
Pages (from-to) | 550-553 |
Number of pages | 4 |
Journal | IEEE Photonics Technology Letters |
Volume | 32 |
Issue number | 9 |
DOIs | |
State | Published - 1 May 2020 |
Keywords
- Surface plasmon polaritons
- optical sensors
- spectroscopic ellipsometry
- thin films
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering