公开(公告)号：US11366060B2

公开(公告)日：2022-06-21

申请号：US16647011

申请日：2018-09-18

Applicant: IMEC VZW ,  Katholieke Universiteit Leuven

Inventor： Finub James Shirley ,  Pol Van Dorpe

IPC: G01N21/64

Abstract: An apparatus for detecting fluorescent light emitted from a sample comprises: a light source, which is configured to emit excitation light of an excitation wavelength towards a sample comprising fluorophores such that fluorescent light is induced; a photo-detector for detecting light incident on the photo-detector; and an interference filter arranged on the photo-detector, wherein the interference filter is configured to selectively collect and transmit light towards the photo-detector based on an angle of incidence of the light towards the interference filter, wherein the interference filter is configured to selectively transmit supercritical angle fluorescence from the sample towards the photo-detector and suppress undercritical angle fluorescence from the sample.

公开(公告)号：US12000785B2

公开(公告)日：2024-06-04

申请号：US17428607

申请日：2020-02-14

Applicant: IMEC VZW

Inventor： Finub James Shirley ,  Pol Van Dorpe

IPC: G01N21/64 ,  G01N21/49

CPC classification number: G01N21/6454 ,  G01N21/49 ,  G01N2021/6471

Abstract: The present invention provides an apparatus for detecting photoluminescent light emitted from a sample, said apparatus (200; 300) comprising at least one light source (210; 310, 318), which is configured to emit light of a first and a second wavelength towards a sample comprising photoluminescent particles, wherein said first wavelength is an excitation wavelength for inducing photoluminescent light from said photoluminescent particles, and wherein said second wavelength is longer than said first wavelength and for gathering background noise information from said sample. The apparatus further comprises a photo-detector (206) for detecting light incident on the photo-detector (206); and an interference filter (204; 304) arranged on the photo-detector (206), wherein the interference filter (204; 304) is configured to selectively collect and transmit light towards the photo-detector (206) based on an angle of incidence of the light towards the interference filter (204; 304), wherein the interference filter (204; 304) is configured to selectively transmit supercritical angle light from the sample towards the photo-detector (206) and suppress undercritical angle light from the sample.