公开(公告)号：US20230213326A1

公开(公告)日：2023-07-06

申请号：US17926314

申请日：2021-05-13

Applicant: LOUGHBOROUGH UNIVERSITY

Inventor： Jonathan HUNTLEY ,  Christos PALLIKARAKIS ,  Pablo RUIZ

IPC: G01B9/02004 ,  G01B9/02091 ,  G01B9/02001

CPC classification number: G01B9/02004 ,  G01B9/02091 ,  G01B9/02009 ,  G01N21/47

Abstract: An interferometry apparatus comprising: a laser source operable to emit a first light beam; a beam splitter arranged to split the first light beam into an object beam and a reference beam, the object beam passing along an object beam arm and the reference beam passing along a reference beam arm; an adaptive delay line located a distance along the reference beam arm, the adaptive delay line being configured to provide, in use, one or more length-adjusted reference beams; a beam splitter arranged to recombine the object beam from the object beam arm and the length-adjusted reference beam(s) from the reference beam arm; and a photodetector operable to detect interference between the object beam and the length-adjusted reference beam(s).