Providing light to channels or portions
US7386199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2005 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Dec 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/0346
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluidic structure includes a channel, a portion of which can contain fluid. Light can propagate in the portion, such as in response to illumination. The refractive index of material at the portion's boundary can be higher than that of the fluid, and more than approximately 10% of intensity of light propagating longitudinally occurs in the fluid, possibly approximately 90%. An IC can be positioned along the portion, with a set of cells of a photosensor array on the IC sensing photons emanating in response to the propagating light. The light can enter through a light-transmissive component along the channel's boundary, then pass obliquely through a portion of the channel that contains air before passing through a bounding component and obliquely into the portion that can contain fluid. The light can couple to an anti-resonant waveguide mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.