Multi-layer extraordinary optical transmission filter systems, devices, and methods
US10050075B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2015 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Mar 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/001
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Systems, devices, and methods for an extraordinary optical transmission (EOT) image capture system comprising optical components to capture light corresponding to an object, an EOT filter device to receive the captured light and transmit wavelengths of interest, and an image sensor to receive the wavelengths of interest and capture an image corresponding to the object. The EOT filter device comprising a first EOT film with thickness TEOT1 and including upper and lower surfaces and a plurality of apertures having a pitch P1, a second EOT film with thickness TEOT2 and including upper and lower surfaces and a plurality of apertures having a pitch P2; and an optical cavity disposed between the first and second EOT films, the optical cavity having a thickness TOC and a refractive index RIOC, wherein the EOT filter device transmits wavelengths of interest based on thicknesses TEOT1 and TEOT2, pitches P1 and P2, and thickness TOC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.