公开(公告)号：US20180045571A1

公开(公告)日：2018-02-15

申请号：US15556190

申请日：2015-03-11

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Manabu SHIOZAWA ,  Koichi WATANABE ,  Masataka SHIRAI

IPC: G01J3/44 ,  G01N21/65 ,  G01J3/02

CPC classification number: G01J3/4412 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0237 ,  G01N21/65 ,  G01N2021/653

Abstract: In multiplex CARS, a fingerprint region is a region where signals are densely concentrated. Information about the intensities and spatial distribution of these signals is important in cell analysis. However, there has been a problem in that the signal intensities are low. Accordingly, mechanisms 702 and 703 for adjusting the power branching ratio between light that enters a photonic crystal fiber 705 and pumping light; mechanisms 710 and 711 for adjusting the divergence/convergence state of the pumping light; and mechanisms 706 and 2101 for adjusting the divergence/convergence state of Stokes light are provided to enable adjustment for emphasizing a desired wavelength band.

公开(公告)号：US20180080868A1

公开(公告)日：2018-03-22

申请号：US15553176

申请日：2015-03-13

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Nobuhiro SHIRAMIZU ,  Hideharu MIKAMI ,  Koichi WATANABE

IPC: G01N21/3581

CPC classification number: G01N21/3581 ,  G01N2201/061

Abstract: Provided is a terahertz wave measuring device that can provide means for improving sensitivity, removing unnecessary light, and phase difference detection. The terahertz wave measuring device comprises a pulsed laser light generation unit 1 that generates pump light 3, a seed light generation unit 2 that generates seed light, a terahertz wave generator 5 on which the pump light and the seed light are incident and that generates terahertz waves, a terahertz wave detector 8 on which the terahertz waves that are generated from the terahertz wave generator and that have interacted with a measurement object 7 and the pump light are incident and that generates terahertz wave detection light 9, an interference optical system 11 that multiplexes the terahertz wave detection light and reference light 14 of the same wavelength as the terahertz wave detection light to generate a plurality of interfering light beams 12 having phase relationships different from one another, a plurality of light detectors 13 that detect the interfering light beams, and a signal processing unit 16 that outputs an intensity signal and/or a phase signal of the terahertz waves that have interacted with the measurement object by performing arithmetic operations on the outputs of the plurality of light detectors.

公开(公告)号：US20160299080A1

公开(公告)日：2016-10-13

申请号：US15036241

申请日：2014-09-22

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Manabu SHIOZAWA ,  Koichi WATANABE ,  Masataka SHIRAI ,  Kentaro OSAWA

IPC: G01N21/65

CPC classification number: G01N21/65 ,  G01N2021/653 ,  G01N2201/06113 ,  G01N2201/0638

Abstract: To measure a surface state, reflective CARS is suitable in terms of the signal intensity. However, with the reflective CARS, it has been difficult to identify the surface position because the shape information is not acquired. Thus, a reflective CARS microscope is combined with a high-resolution phase sensor. The surface position is identified with the phase sensor, and reflected CARS generated from the surface is detected, so that composition analysis is performed.

Abstract translation: 为了测量表面状态，反射CARS在信号强度方面是合适的。 然而，对于反射CARS，由于未获取形状信息，因此难以识别表面位置。 因此，反射CARS显微镜与高分辨率相位传感器组合。 用相位传感器识别表面位置，并检测从表面产生的反射CARS，从而进行组成分析。