An Optical Temperature Sensor Using Surface Plasmons
- 1 June 1993
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 32 (6R), 2716
- https://doi.org/10.1143/jjap.32.2716
Abstract
The principles of an optical temperature sensor, using surface plasmon generation in a material with a large temperature-dependent refractive index, are presented. The sensor design consists of surface plasmon generation in a thin (500 Å) silver film overlaid with hydrogenated amorphous silicon (a-Si:H). A factor of three change in reflected light intensity, from a glass/Ag/a-Si:H interface, is obtained for a 40°C rise in temperature. The device is compatible with fibre optic technology for remote temperature sensing applications.Keywords
This publication has 8 references indexed in Scilit:
- Surface plasmon-polaritons and their usesOptical and Quantum Electronics, 1991
- Surface Plasmons on Smooth and Rough Surfaces and on GratingsPublished by Springer Nature ,1988
- Optical chemical sensing employing surface plasmon resonanceElectronics Letters, 1988
- Raman scattering and attenuated-total-reflection studies of surface-plasmon polaritonsPhysical Review B, 1986
- Chapter 2 The Optical Absorption Edge of a-Si: HPublished by Elsevier ,1984
- Surface plasmon resonance and immunosensorsElectronics Letters, 1984
- Measurement of third order nonlinear susceptibilities by surface plasmonsApplied Physics Letters, 1982
- Surface plasma oscillations at silver surfaces with thin transparent and absorbing coatingsSurface Science, 1978