Time-reversal of variance-encoded light (TROVE)
US9354166B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2013 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Feb 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/516
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for irradiating a scattering medium with increased resolution. The method includes transmitting EM radiation from an Electromagnetic (EM) radiation source to a target inside a scattering medium, wherein the target encodes the EM radiation with a variance structure to form encoded EM radiation; measuring, in a detector, transmitted EM radiation comprising at least a portion of the encoded EM radiation transmitted through and exiting the scattering medium; decoding the transmitted EM radiation, comprising EM fields, in a computer, comprising selecting one or more of the EM fields having the variance structure; and irradiating the scattering medium with time reversed EM radiation from a spatial light modulator (SLM), the time reversed EM radiation generated from time reversing the EM fields having the variance structure, thereby forming a focus of the time reversed EM radiation in the scattering medium with the increased resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.