Surface plasmon resonance sensor
US6738141B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2000 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Jan 28, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/553
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Surface plasmon resonance (SPR) sensors comprise a sensor chip constructed of laterally integrated arrays of planar sensor chip units and an optical transducer constructed of laterally integrated arrays of planar optical transducer units. The replaceable sensor chip is separated from the optical transducer by a gap and perpendicular optical interconnections are between the sensor chip and the optical transducer. The optical interconnections between the sensor chip and the optical transducer are based on collimated light beams incident perpendicularly to the interfaces. Uncritical alignment of the optical transducer and the sensor chip is provided. The direction of the light beams will not be changed when passing through the interfaces between the sensor chip, the gap and the optical transducer eliminating the need of disposing refractive index matching gels in the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.