Optical fiber sensors using grating-assisted surface plasmon-coupled emission (GASPCE)
US7835006B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 2005 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Apr 5, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/6452
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a new fluorescence detection platform based on the integration of grating-assisted surface plasmon coupled emission (GASPCE). This innovation builds upon the traditional SPCE technique by adding a grating to the metal surface which thereby provides additional emission confinement. The original conical emission pattern associated with the traditional SPCE technique is “squeezed” into a “two-beam” emission pattern that is more readily interrogated and collected by a waveguiding structure. With the GASPCE method and system of the present invention, a fluorescence emission can be coupled into optical waveguide with greater efficiency. As such, the integration of the GASPCE and existing optical fiber networking offers distributed real-time sensing capabilities. Also, the integration with an integrated optical chip may enable multi-channel array sensing or high-throughput florescence sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.