公开(公告)号：US20170307515A1

公开(公告)日：2017-10-26

申请号：US15517925

申请日：2015-10-05

Applicant: RIKEN

Inventor： Kouji NAWATA ,  Hiroaki MINAMIDE ,  Shuzhen FAN ,  Feng QI ,  Hiromasa ITO

IPC: G01N21/17 ,  G02F1/365 ,  G02F1/37 ,  G01N21/3581 ,  G02F1/35

CPC classification number: G01N21/17 ,  G01N21/3581 ,  G02F1/365 ,  G02F1/37 ,  G02F2001/354

Abstract: An optical response measuring device is provided with a light source, first and second wavelength conversion elements, and a light intensity sensor array. The light source generates a pair of light beams including light beams of first and second wavelengths. The first wavelength conversion element generates measurement light of a wavelength whose phase is maintained with relative to the pair of light beams incident thereon. The measurement light is irradiated to an object for measurement. The detected light is then made incident on the second wavelength conversion element. Reference light carries the phase of the pair of light beams and light for which the phase is to be determined in the detection light, from which the second wavelength conversion element generates modulated reference light. The modulated reference light is modulated to have first and second local intensities, which are then measured by the light intensity sensor array.