Interferometric device and corresponding spectrometer
US9696208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2014 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jun 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/4538
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interferometric device: includes a separator, for separating a collimated beam (F0) into first (F1) and second (F2) incident beams; at least one transducer; and a transparent optical system, including at least three planar diopters (D1, D2, D3). The the transducer is based on plasmon resonance and in contact with the diopter (D1); the diopter (D2) has a network of nanostructures; the optical system and the separator being configured such that the beam (F1) and the beam (F2) undergo total internal reflection on the diopter (D1) and on the diopter (D3), respectively, prior to interfering on the diopter (D2) by total internal reflection and to forming an interferogram in which the central fringe is located at a convergence point (ZOPD).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.