Fundació Institut de Ciències Fotòniques;Institució Catalana De Recerca I Estudis Avançats (ICREA)
发明人:
申请号：
EP18382782.3
公开号：
EP3647772A1
申请日:
2018.11.02
申请国别(地区):
EP
年份:
2020
代理人:
摘要：
Speckle contrast method and system that discriminates photons based on their path length in tissue, the method comprising the steps of:- directing light from a pulsed light into a sample by optical elements；- synchronizing the time between the pulse injection to sample and the detection unit；- collecting the photons that have travelled through the sample by optics, and conveying the photons of a single or a limited number of speckles from the sample to one or more detection elements；- time-tagging photons thanks to the synchronization of the detector element and/or the time-tagging electronics with the laser pulse emission；- estimating each photon time-of-flight by the difference between its time tag and the laser pulse emission；- categorizing the detected photons based on the value of the time-of-flight in a certain number of time gates；- measuring the speckle contrast
