Process and a device for the detection of surface plasmons
US5792667A · kind A · utility
Inventors
Key dates
| Filing date | Aug 15, 1995 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Aug 15, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.