Process and a device for the detection of surface plasmons
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United States of America Patent
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Aug 11, 1998
Grant Date -
N/A
app pub date -
Aug 15, 1995
filing date -
Dec 24, 1992
priority date (Note) -
Expired
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Abstract
The invention relates to a process and device for detecting surface plasmons. According to the invention, the surface plasmons are excited by radiation energy in a thin material layer and, on decaying, release heat producing a temperature rise in the material layer. To simplify the detection of the surface plasmons technically and at the same time especially to attain a good lateral and temporal resolution, an electro-thermal sensor allocated to the material layer measures a parameter of the layer in the irradiation region at the same time as the temperature rise and emits a signal corresponding to that parameter. An ultra-thin-film thermometer is, in particular, used to detect the surface plasmons. The process and device are applicable especially to the field of bio and immuno sensory analysis.
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