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公开(公告)号：US20210011430A1
公开(公告)日：2021-01-14
申请号：US17029520
申请日：2020-09-23
申请人： HAMAMATSU PHOTONICS K.K. , INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
发明人： Hiroto Sakai , Kenji Ohmori , Taro Ando , Nobuyuki Takei , Haruyoshi Toyoda , Yoshiyuki Ohtake , Tomoko Hyodo , Yuu Takiguchi
摘要： 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 modulator based on a two-dimensional pseudo random number pattern.
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公开(公告)号：US10824114B2
公开(公告)日：2020-11-03
申请号：US15945016
申请日：2018-04-04
申请人： HAMAMATSU PHOTONICS K.K. , INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
发明人： Hiroto Sakai , Kenji Ohmori , Taro Ando , Nobuyuki Takei , Haruyoshi Toyoda , Yoshiyuki Ohtake , Tomoko Hyodo , Yuu Takiguchi
摘要： 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.
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公开(公告)号：US11567450B2
公开(公告)日：2023-01-31
申请号：US17029520
申请日：2020-09-23
申请人： HAMAMATSU PHOTONICS K.K. , INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
发明人： Hiroto Sakai , Kenji Ohmori , Taro Ando , Nobuyuki Takei , Haruyoshi Toyoda , Yoshiyuki Ohtake , Tomoko Hyodo , Yuu Takiguchi
摘要： 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 modulator based on a two-dimensional pseudo random number pattern.
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公开(公告)号：US11822054B2
公开(公告)日：2023-11-21
申请号：US17052249
申请日：2019-04-11
发明人： Soh Uenoyama , Yuu Takiguchi
摘要： The present disclosure relates to a metasurface structural body or the like having a structure for achieving desired optical characteristics. The metasurface structural body includes a base member having a first surface and a second surface opposing each other, and a plurality of antennas as a plurality of fine structures arranged along the first surface. The base member has a base portion and an adjacent portion. The antennas each has a first refractive index and an antenna end surface constituting a part of the first surface. The adjacent portion is provided such that a part thereof is positioned between the antennas, the adjacent portion having a second refractive index different from the first refractive index and an adjacent-portion end surface constituting a remaining part of the first surface. The antenna end surfaces and the adjacent-portion end surface form a flat surface as the first surface.
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公开(公告)号：US11031747B2
公开(公告)日：2021-06-08
申请号：US16323625
申请日：2017-08-10
摘要： 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.
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公开(公告)号：US20190356113A1
公开(公告)日：2019-11-21
申请号：US16451580
申请日：2019-06-25
摘要： In a semiconductor light emitting element provided with an active layer 4, a pair of cladding layers 2, 7 between which the active layer 4 is interposed, and a phase modulation layer 6 optically coupled to the active layer 4, the phase modulation layer 6 includes a base layer 6A and a plurality of different refractive index regions 6B having different refractive indices from the base layer 6A. When an XYZ orthogonal coordinate system having a thickness direction of the phase modulation layer 6 as a Z-axis direction is set and a square lattice of a virtual lattice constant a is set in an XY plane, each of the different refractive index regions 6B is disposed so that a centroid position G thereof is shifted from a lattice point position in a virtual square lattice by a distance r, and the distance r is 0
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公开(公告)号：US10466458B2
公开(公告)日：2019-11-05
申请号：US15772648
申请日：2016-09-20
发明人： Yuu Takiguchi
摘要： An image acquisition device includes a light source, a spatial light modulator having a plurality of pixels two-dimensionally arranged and fro modulating a phase of excitation light output from the light source for each of the plurality of pixels, a first objective lens, a second objective lens, a photodetector, and a control unit for controlling an amount of phase modulation for each of the plurality of pixels in accordance with a two-dimensional phase pattern corresponding to the plurality of pixels. The phase pattern is generated based on a predetermined basic phase pattern. The basic phase pattern includes a first region in which the phase value continuously increases in a predetermined direction and a second region in which the phase value continuously decreases in the direction and facing the first region in the direction.
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公开(公告)号：US10090636B2
公开(公告)日：2018-10-02
申请号：US15541515
申请日：2016-01-07
IPC分类号： H01S5/02 , G02F1/1335 , G02B27/10 , H01S5/18
摘要： Provided is a semiconductor laser device including a plurality of semiconductor laser units LDC that are capable of being independently driven, and a spatial light modulator SLM that is optically coupled to a group of the plurality of semiconductor laser units LDC. Each of the semiconductor laser units includes a pair of clad layers having an active layer 4 interposed therebetween, and a diffractive lattice layer 6 that is optically coupled to the active layer 4. The semiconductor laser device includes a ¼ wavelength plate 26 that is disposed between a group of the active layers 4 of the plurality of semiconductor laser units LDC and a reflection film 23, and a polarizing plate 27 that is disposed between the group of the active layers 4 of the plurality of semiconductor laser units LDC and a light emitting surface.
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公开(公告)号：US09948060B2
公开(公告)日：2018-04-17
申请号：US15538219
申请日：2015-12-24
CPC分类号： H01S5/0425 , G02F1/13 , H01S3/1065 , H01S5/0228 , H01S5/026 , H01S5/0624 , H01S5/06243 , H01S5/105 , H01S5/12 , H01S5/14 , H01S5/18 , H01S5/18302 , H01S5/18361 , H01S5/34313 , H01S5/34353 , H01S2301/02 , H01S2301/20
摘要： This semiconductor laser device includes a semiconductor laser chip and a spatial light modulator SLM optically coupled to the semiconductor laser chip. The semiconductor laser chip LDC includes an active layer 4, a pair of cladding layers 2 and 7 sandwiching the active layer 4, a diffraction grating layer 6 optically coupled to the active layer 4, and a drive electrode E3 that is disposed between the cladding layer 2 and the spatial light modulator SLM and supplies an electric current to the active layer 4, and the drive electrode E3 is positioned within an XY plane and has a plurality of openings as viewed from a Z-axis direction and has a non-periodic structure.
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公开(公告)号：US09793681B2
公开(公告)日：2017-10-17
申请号：US14903466
申请日：2014-07-02
发明人： Yuu Takiguchi , Yoshiro Nomoto
CPC分类号： H01S5/026 , G02F1/1335 , G02F1/137 , G02F1/29 , G02F2001/291 , G02F2201/305 , G02F2202/32 , G02F2203/02 , G02F2203/12 , G02F2203/18 , G02F2203/50 , H01S5/0085 , H01S5/12 , H01S5/187 , H01S5/34313 , H01S5/3432 , H01S5/34353
摘要： This semiconductor laser device includes a semiconductor laser chip and a spatial light modulator SLM which is optically connected to the semiconductor laser chip. The semiconductor laser chip LDC includes an active layer 4, a pair of cladding layers 2 and 7 sandwiching the active layer 4, and a diffraction grating layer 6 which is optically connected to the active layer 4. The spatial light modulator SLM includes a common electrode 25, a plurality of pixel electrodes 21, and a liquid crystal layer LC arranged between the common electrode 25 and the pixel electrodes 21. A laser beam output in a thickness direction of the diffraction grating layer 6 is modulated and reflected by the spatial light modulator SLM and is output to the outside.
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