Multi-spectral scattering-matrix tomography
US12360039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2022 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Sep 6, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/266
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for multi-spectral scattering-matrix tomography includes a step of splitting an input light signal into an incident light signal and a reference light signal. The sample light signal is directed to a sample in either a reflection configuration or a transmission configuration such that an output light signal includes light scattered from or transmitted through the sample. The incident signal and the reference light signal are directed to a camera angled to allow for amplitude and phase to be calculated by off-axis holography. A total light signal is measured with a camera that is a coherent sum of the reference light signal and the output signal. The total light signal for each light frequency and each incident angle are collected as collected total light signal data. A computing device derives an image of the sample from a calculated reflection matrix or transmission matrix or both of them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.