公开(公告)号：US20210088766A1

公开(公告)日：2021-03-25

申请号：US16971753

申请日：2018-12-26

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Yuu TAKIGUCHI ,  Rumika TANAKA ,  Hisayoshi TAKAMOTO

IPC: G02B21/00 ,  G01N21/63

Abstract: A light sheet microscope includes an irradiation optical system, a detection optical system, and a photodetector. The irradiation optical system includes a wavelength sweep light source which outputs light of which a wavelength changes with time as excitation light, a spectroscopic element on which the excitation light output from the wavelength sweep light source is incident and which emits the excitation light at an emission angle corresponding to a wavelength of the excitation light, a relay optical system which includes a cylindrical lens on which the excitation light emitted from the spectroscopic element is incident at an incident angle corresponding to the emission angle, and a first objective lens which condenses the excitation light guided by the relay optical system and irradiates the sample with the excitation light having a sheet shape.

公开(公告)号：US20200373739A1

公开(公告)日：2020-11-26

申请号：US16769805

申请日：2018-11-28

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazuyoshi HIROSE ,  Yoshitaka KUROSAKA ,  Yuu TAKIGUCHI ,  Takahiro SUGIYAMA

IPC: H01S5/22 ,  H01S5/062 ,  H01S5/042 ,  H01S5/183

Abstract: The embodiment relates to a light-emitting device in which a positional relationship between a modified refractive index region's gravity-center position and the associated lattice point differs from a conventional device, and a production method. In this device, a stacked body including a light-emitting portion and a phase modulation layer optically coupled to the light-emitting portion is on a substrate. The phase modulation layer includes a base layer and plural modified refractive index regions in the base layer. Each modified refractive index region's gravity-center position locates on a virtual straight line passing through a corresponding reference lattice point among lattice points of a virtual square lattice on the base layer's design plane. A distance between the reference lattice point and the modified refractive index region's gravity center along the virtual straight line is individually set such that this device outputs light forming an optical image.

公开(公告)号：US20190312412A1

公开(公告)日：2019-10-10

申请号：US16434789

申请日：2019-06-07

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Yoshitaka KUROSAKA ,  Kazuyoshi HIROSE ,  Takahiro SUGIYAMA ,  Yuu TAKIGUCHI ,  Yoshiro NOMOTO

IPC: H01S5/183 ,  H01S5/026 ,  H01S5/028 ,  H01S5/042 ,  H01S5/06 ,  H01S5/343 ,  H01S5/42

Abstract: The present embodiment relates to a light emitting device having a structure capable of removing zero order light from output light of an S-iPM laser. The light emitting device includes a semiconductor light emitting element and a light shielding member. The semiconductor light emitting element includes an active layer, a pair of cladding layers, and a phase modulation layer. The phase modulation layer has a basic layer and a plurality of modified refractive index regions, each of which is individually disposed at a specific position. The light shielding member has a function of passing through a specific optical image output along an inclined direction and shielding zero order light output along a normal direction of a light emitting surface.

公开(公告)号：US20190312410A1

公开(公告)日：2019-10-10

申请号：US16432198

申请日：2019-06-05

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takahiro SUGIYAMA ,  Yuu TAKIGUCHI ,  Yoshitaka KUROSAKA ,  Kazuyoshi HIROSE ,  Yoshiro NOMOTO ,  Soh UENOYAMA

IPC: H01S5/18 ,  H01S5/42 ,  H01S5/062

Abstract: A semiconductor light-emitting module according to the present embodiment includes a plurality of semiconductor light-emitting elements each outputting light of a desired beam projection pattern; and a support substrate holding the plurality of semiconductor light-emitting elements. Each of the plurality of semiconductor light-emitting elements includes a phase modulation layer configured to form a target beam projection pattern in a target beam projection region. The plurality of semiconductor light-emitting elements include first and second semiconductor light-emitting elements that are different in terms of at least any of a beam projection direction, the target beam projection pattern, and a light emission wavelength.

公开(公告)号：US20190252856A1

公开(公告)日：2019-08-15

申请号：US16292531

申请日：2019-03-05

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazuyoshi HIROSE ,  Yoshitaka KUROSAKA ,  Takahiro SUGIYAMA ,  Yuu TAKIGUCHI ,  Yoshiro NOMOTO

IPC: H01S5/183 ,  H01S5/028 ,  H01S5/42

Abstract: The present embodiment relates to a semiconductor light emitting element having a structure that enables removal of zero-order light from output light of an S-iPM laser. The semiconductor light emitting element includes an active layer, a pair of cladding layers, and a phase modulation layer. The phase modulation layer has a base layer and a plurality of modified refractive index regions each of which is individually arranged at a specific position. One of the pair of cladding layers includes a distributed Bragg reflector layer which has a transmission characteristic with respect to a specific optical image outputted along an inclined direction with respect to a light emission surface and has a reflection characteristic with respect to the zero-order light outputted along a normal direction of the light emission surface.

公开(公告)号：US20180292786A1

公开(公告)日：2018-10-11

申请号：US15945016

申请日：2018-04-04

Applicant: HAMAMATSU PHOTONICS K.K. ,  INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES

Inventor： Hiroto SAKAI ,  Kenji OHMORI ,  Taro ANDO ,  Nobuyuki TAKEI ,  Haruyoshi TOYODA ,  Yoshiyuki OHTAKE ,  Tomoko HYODO ,  Yuu TAKIGUCHI

IPC: G03H1/16 ,  G03H1/04 ,  G03H1/00

Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modultor based on a two-dimensional pseudo random number pattern.

公开(公告)号：US20170261760A1

公开(公告)日：2017-09-14

申请号：US15506800

申请日：2015-08-26

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Yuu TAKIGUCHI

IPC: G02B27/28 ,  G01J1/44 ,  G01J1/04 ,  G02F1/01 ,  G02B5/08

CPC classification number: G02B27/283 ,  G01J1/0429 ,  G01J1/44 ,  G02B5/08 ,  G02F1/01 ,  G02F1/13 ,  G02F2203/06

Abstract: A light modulation apparatus includes a reflection type spatial light modulator, a polarization separating unit, a first polarization plane rotation unit, a polarization combining unit, and a second polarization plane rotation unit. The polarization separating unit separates input light, and outputs first separated light and second separated light. The first polarization plane rotation unit causes the first separated light to have P-polarization. A first region of a modulation plane of the spatial light modulator modulates the first separated light and outputs first modulated light, and a second region modulates the second separated light and outputs second modulated light. The second polarization plane rotation unit causes the second modulated light to have S-polarization. The polarization combining unit combines the first modulated light and the second modulated light and outputs output light.

公开(公告)号：US20250079792A1

公开(公告)日：2025-03-06

申请号：US18844129

申请日：2023-03-06

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kibo OTE ,  Yoshitaka KUROSAKA ,  Kazuyoshi HIROSE ,  Yuu TAKIGUCHI ,  Takahiro SUGIYAMA ,  Soh UENOYAMA

IPC: H01S5/042 ,  H01S5/22 ,  H01S5/223

Abstract: A semiconductor light-emitting element includes a semiconductor stacked layer, an electrode, and an electrode. The semiconductor stacked layer includes an active layer and a phase modulation layer. The phase modulation layer includes a plurality of phase modulation areas. Each of the plurality of phase modulation areas includes a basic region which has a first refractive index and a plurality of different-refractive-index regions which have a second refractive index different from the first refractive index and which are distributed in a two-dimensional shape. The electrode includes a plurality of electrode parts overlapping the plurality of phase modulation areas when seen in a stacking direction of the semiconductor stacked layer. The plurality of electrode parts are electrically isolated from each other. Laser light oscillating in each of the plurality of phase modulation areas is applied to a common irradiation area as light images according to arrangement of the plurality of different-refractive-index regions.

公开(公告)号：US20240361120A1

公开(公告)日：2024-10-31

申请号：US18687468

申请日：2022-07-04

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Naoaki KATO ,  Yuu TAKIGUCHI ,  Hiroshi TANAKA

IPC: G01B11/24 ,  G01B9/02002 ,  G01B11/30

CPC classification number: G01B11/2441 ,  G01B9/02002 ,  G01B11/30

Abstract: An optical heterodyne interference measurement apparatus includes a beam generation unit, a beam splitter, a mirror, a first photodetector, a linear polarizer, a second photodetector, a linear polarizer, an AD conversion unit, and a computer. The beam generation unit generates and outputs a first light beam and a second light beam having polarizations orthogonal to each other. The first light beam and the second light beam have optical frequencies different from each other by a heterodyne frequency. The computer sets, when ωp is set to any peak frequency being temporally constant in a frequency spectrum of intensity noise included in the first light beam or the second light beam output from the beam generation unit, the heterodyne frequency ωh to a value of a rational multiple of the peak frequency ωp.

公开(公告)号：US20240030672A1

公开(公告)日：2024-01-25

申请号：US18032403

申请日：2021-09-29

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takashi KURITA ,  Ryo YOSHIMURA ,  Ryo MAKINO ,  Yuu TAKIGUCHI

IPC: H01S3/00 ,  G02F1/133 ,  G02F1/137 ,  G02F1/01 ,  B23K26/064

CPC classification number: H01S3/0085 ,  H01S3/0014 ,  G02F1/13318 ,  G02F1/137 ,  G02F1/0136 ,  B23K26/064

Abstract: Disclosed is a laser device including: a laser light source configured to emit laser light; a phase control unit configured to receive the laser light emitted from the laser light source, to control a spatial phase of a portion of the laser light, to emit the portion of the light as control light, and to emit another portion of the laser light as non-control light; a first optical system configured to irradiate an object with the control light emitted from the phase control unit; a detector configured to detect the non-control light emitted from the phase control unit; a second optical system configured to cause the non-control light emitted from the phase control unit to converge toward a detection surface of the detector.