Optical phase-shift detection of surface plasmon resonance
- 1 April 1998
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 37 (10), 1747-1751
- https://doi.org/10.1364/ao.37.001747
Abstract
A heterodyne optical measurement system for studying the phase shift of surface plasmon resonance (SPR) is presented. The system utilizes a frequency-stabilized Zeeman laser as a detection light source and is suitable for real-time phase measurement in SPR-sensing applications. The phase shift in an angular dispersion SPR excitation setup was measured ranging from +180° to -120° around the SPR excitation region. The experimental results fit well with the theoretical analysis. Compared with the reflection coefficient variation that is widely investigated in SPR studies, phase shift is estimated to provide a higher sensitivity to sensor systems and more information about the resonance phenomenon.Keywords
This publication has 8 references indexed in Scilit:
- A fiber-optic chemical sensor based on surface plasmon resonanceSensors and Actuators B: Chemical, 1993
- Determination of probable alcohol yield in musts by means of an SPR optical sensorSensors and Actuators B: Chemical, 1993
- Biosensors based on surface plasmons excited in non-noble metalsBiosensors and Bioelectronics, 1991
- Determination of thickness and dielectric constant of thin transparent dielectric layers using surface plasmon resonanceOptics Communications, 1991
- A Compact Surface Plasmon Resonance Sensor for Measurement of Water in ProcessApplied Spectroscopy, 1988
- Surface plasmon resonance and immunosensorsElectronics Letters, 1984
- Surface electromagnetic waves ellipsometrySurface Science, 1976
- Notizen: Radiative Decay of Non Radiative Surface Plasmons Excited by LightZeitschrift für Naturforschung A, 1968