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公开(公告)号：US11088511B2
公开(公告)日：2021-08-10
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：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：US10571702B2
公开(公告)日：2020-02-25
申请号：US15544935
申请日：2016-01-12
发明人： Hiroto Sakai , Yuu Takiguchi
摘要： A light irradiation device includes a Gaussian beam output unit for outputting light having a light intensity distribution that conforms to a Gaussian distribution, a spatial light modulator for receiving the light and modulating the light by presenting a CGH, an optical system for converging the modulated light, and an amplitude mask arranged on at least one of an optical axis between the Gaussian beam output unit and the spatial light modulator and an optical axis between the spatial light modulator and the optical system. The amplitude mask has a circular-shaped first region centered on the optical axis and an annular-shaped second region that surrounds the first region. Transmittance in the second region continuously decreases as a distance from the optical axis increases.
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公开(公告)号：US10527864B2
公开(公告)日：2020-01-07
申请号：US15506800
申请日：2015-08-26
发明人： Yuu Takiguchi
摘要： 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.
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公开(公告)号：US10295812B2
公开(公告)日：2019-05-21
申请号：US15639801
申请日：2017-06-30
发明人： Yuu Takiguchi
IPC分类号： G02B21/06 , G02B13/22 , G02B21/00 , G02B21/14 , G03H1/00 , B23K26/06 , B23K26/067 , B23K26/082 , B23K26/0622 , G02B26/06 , G02B27/18 , B23K101/40 , B23K103/00 , G03H1/22 , G03H1/08
摘要： A light irradiation device is an apparatus for irradiating an irradiation object, and includes a light source outputting readout light L1, a spatial light modulator modulating the readout light L1 in phase to output modulated light L2, and a both-sided telecentric optical system including a first lens optically coupled to a phase modulation plane of the spatial light modulator and a second lens optically coupled between the first lens and the irradiation object, and optically coupling the phase modulation plane and the irradiation object. An optical distance between the phase modulation plane and the first lens is substantially equal to a focal length of the first lens. The spatial light modulator displays a Fresnel type kinoform on the phase modulation plane.
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公开(公告)号：US09991669B2
公开(公告)日：2018-06-05
申请号：US15656096
申请日：2017-07-21
CPC分类号： H01S5/0085 , H01S5/0265 , H01S5/183 , H01S5/18338 , H01S5/18363 , H01S5/18386 , H01S5/18391 , H01S5/18394 , H01S5/187
摘要： The embodiment relates to a semiconductor light-emitting device comprising a semiconductor substrate, a first cladding layer, an active layer, a second cladding layer, a contact layer, and a phase modulation layer located between the first cladding and active layers or between the active and second cladding layers. The phase modulation layer comprises a basic layer and plural first modified refractive index regions different from the basic layer in a refractive index. In a virtual square lattice set on the phase modulation layer such that the modified refractive index region is allocated in each of unit constituent regions constituting square lattices, the modified refractive index region is arranged to allow its gravity center position to be separated from the lattice point of the corresponding unit constituent region, and to have a rotation angle about the lattice point according a desired optical image.
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公开(公告)号：US09965867B2
公开(公告)日：2018-05-08
申请号：US15031802
申请日：2014-10-02
发明人： Tomoko Otsu , Taro Ando , Hiroyasu Itoh , Haruyoshi Toyoda , Yoshiyuki Ohtake , Yuu Takiguchi
IPC分类号： G06T7/20 , G02B21/32 , B01L3/00 , G02B7/04 , G02B27/09 , G02F1/13 , G21K1/00 , H04N5/232 , G06T7/246
CPC分类号： G06T7/248 , B01L3/502761 , B01L2300/0822 , B01L2400/0454 , G02B7/04 , G02B21/32 , G02B27/0927 , G02F1/1313 , G06T2207/10148 , G06T2207/10152 , G06T2207/30241 , G21K1/006 , H04N5/23212
摘要： A micro object control apparatus for controlling motion of a micro object within a medium includes a light source, an optical vortex generation unit, an objective lens, an imaging unit, an analysis unit, and a movement unit. The analysis unit acquires first motion information of the micro object based on the image data in which the micro object optically trapped with the optical vortex is imaged by setting the focal position of the optical vortex to a first position, acquires second motion information of the micro object based on the image data in which the micro object optically trapped with the optical vortex is imaged by setting the focal position of the optical vortex to a second position, and evaluates a state of an optical trap of the micro object with the optical vortex by comparing the first motion information and the second motion information.
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18.发明申请LIGHT MODULATION METHOD, LIGHT MODULATION PROGRAM, LIGHT MODULATION DEVICE, AND ILLUMINATION DEVICE 审中-公开光调制方法，光调制程序，调光装置和照明装置公开(公告)号：US20150185523A1
公开(公告)日：2015-07-02
申请号：US14416705
申请日：2013-07-09
发明人： Naoya Matsumoto , Takashi Inoue , Yuu Takiguchi
CPC分类号： G02F1/13306 , G02F1/1313 , G03H1/2294 , G03H2001/0224 , G03H2225/32
摘要： A light modulation device includes a phase-modulation type spatial light modulator having a plurality of two-dimensionally arrayed pixels and modulating a phase of input light for each pixel with a modulation pattern, a modulation pattern setting unit setting a target modulation pattern for modulating the phase of the light, a correction coefficient setting unit setting a correction coefficient α of α≧1 according to pixel structure characteristics of the spatial light modulator and pattern characteristics of the target modulation pattern, and a modulation pattern correction unit determining a corrected modulation pattern to be presented on the plurality of pixels of the spatial light modulator by multiplying the target modulation pattern by the correction coefficient α.
摘要翻译： 光调制装置包括具有多个二维排列像素的相位调制型空间光调制器，并且以调制图案调制每个像素的输入光的相位;调制图案设定单元，设定用于调制 光的相位，校正系数设定单元，根据空间光调制器的像素结构特性和目标调制图案的图案特性，设定α≥1的校正系数α，以及将校正后的调制图案确定为 通过将目标调制图案乘以校正系数α而呈现在空间光调制器的多个像素上。
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公开(公告)号：US11942751B2
公开(公告)日：2024-03-26
申请号：US18032403
申请日：2021-09-29
发明人： Takashi Kurita , Ryo Yoshimura , Ryo Makino , Yuu Takiguchi
IPC分类号： H01S3/00 , B23K26/064 , G02F1/01 , G02F1/133 , G02F1/137
CPC分类号： H01S3/0085 , B23K26/064 , G02F1/0136 , G02F1/13318 , G02F1/137 , H01S3/0014
摘要： 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.
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公开(公告)号：US11300800B2
公开(公告)日：2022-04-12
申请号：US16499924
申请日：2018-03-26
发明人： Hiroto Sakai , Taro Ando , Haruyoshi Toyoda , Yoshiyuki Ohtake , Yuu Takiguchi , Tomoko Hyodo
摘要： A pseudo speckle pattern generation apparatus includes a first spatial light modulator, a first lens, a second spatial light modulator, a second lens and the like. The first spatial light modulator has a first intensity modulation distribution based on a pseudo random number pattern, and spatially modulates intensity of light output from a light source and increased in beam diameter by a beam expander. The second spatial light modulator has a second intensity modulation distribution based on a filter function, is provided on a plane where a Fourier transformed pattern is generated by the first lens, and spatially modulates intensity of the light reached through the first lens. The second lens optically Fourier transforms a pattern of the light output from the second spatial light modulator to generate a Fourier transformed pattern as a pseudo speckle pattern.
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