公开(公告)号：JP2000077750A

公开(公告)日：2000-03-14

申请号：JP24327798

申请日：1998-08-28

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： KAWASHIMA TOSHIYUKI ,  SUGA HIROBUMI

IPC: H01S3/042 ,  H01S3/06 ,  H01S3/094 ,  H01S3/16

Abstract: PROBLEM TO BE SOLVED: To miniaturize a solid laser and to enhance the excitation efficiency of the laser by a method wherein excitation light is made incident in the side surface of a tabular laser medium, and clad members of a small refractive index are provided in contact to the laser medium. SOLUTION: Excitation light outputted from a semiconductor laser 24 is condensed by a group 26 of condensing lenses and the excitation light is incident in the side surface of a laser medium 12. Here, as lower and upper clads 14 and 16 are formed of a YAG crystal, the refractive index of the clads 14 and 16 is 1.82. To this refractive index, as the medium 12 is formed of a Yb: YAG crystal doped with a Yb to the YAG crystal, the refractive index of the medium 12 becomes higher by 0.1 to 0.2% or thereabouts to that of the clads 14 and 16. Accordingly, the light incident in the interface between the medium 12 and the clad 14 or the interface between the medium 12 and the clad 16 at an angle larger than a critical angle is reflected totally on this interface and results in being confined in the medium 12.

Abstract translation: 要解决的问题：为了使固体激光器小型化并且通过其中激发光入射到平板激光介质的侧表面中的方法提高激光器的激发效率，并且提供具有小折射率的包层部件接触 到激光介质。 解决方案：从半导体激光器24输出的激发光由聚光透镜组26聚光，激发光入射到激光介质12的侧面。这里，由于下层和上层14和16由YAG 晶体，包层14和16的折射率为1.82。 对于该折射率，由于介质12由向YAG晶体掺杂有Yb的Yb：YAG晶体形成，所以介质12的折射率比包层14和16的折射率高0.1至0.2％ 因此，入射到介质12和包层14之间的界面的光或介质12与包层16之间的界面以大于临界角的角度入射的光完全反映在该界面上，并且导致被限制在介质中 12。

公开(公告)号：JPH0818133A

公开(公告)日：1996-01-19

申请号：JP14474294

申请日：1994-06-27

Applicant: HAMAMATSU PHOTONICS KK

Inventor： KAWASHIMA TOSHIYUKI ,  SAKAI TOSHIAKI ,  KUNO KOJI

IPC: H01S3/038 ,  H01S3/036 ,  H01S3/0977 ,  H01S3/22 ,  H01S3/225

Abstract: PURPOSE:To realize reduction in size of the apparatus by moving, without using a fan, the gas within the space defined by the first and second main electrodes to a stylus electrode before the time to apply the voltage of the next period has come. CONSTITUTION:A periodical voltage is applied across preliminary ionizing electrodes 103, 113 and main electrodes 120, 121 and thereby discharge occurs in the space defined by the main electrodes 120, 121. This discharge excites the gas within the vessel and the light beam generated from the gas is reflected by mirrors 6, 7 forming resonator and is then emitted as the laser beam to the external elements of the gas pulse laser. An aperture electrode 114 has an aperture exposed to the space defined by the main electrodes 120, 121. When the predetermined voltage is applied to a stylus electrode 118, the gas ionized in the vicinity of the end part of the stylus type electrode 118 directed to the aperture moves toward the aperture with a Coulomb's force. Therefore, the gas circulates within the gas pulselaser passing through the aperture.

公开(公告)号：JP2015015305A

公开(公告)日：2015-01-22

申请号：JP2013139993

申请日：2013-07-03

Applicant: 浜松ホトニクス株式会社 ,  Hamamatsu Photonics Kk

Inventor： SEKINE TAKASHI ,  KAWASHIMA TOSHIYUKI ,  TAKEUCHI YASUKI ,  BANNO YUMA

IPC: H01S5/022 ,  G02B5/04

CPC classification number: G02B27/12 ,  G02B5/04 ,  G02B27/0905 ,  G02B27/0922 ,  G02B27/106 ,  G02B27/1066 ,  H01S5/005 ,  H01S5/4012 ,  H01S5/4025 ,  H01S5/405

Abstract: 【課題】複数の半導体レーザアレイスタック同士を隣接させる必要がなく、半導体レーザアレイスタックの一部に劣化が生じた場合であっても照射対象物におけるレーザ光量の均一性を保つことができるレーザ装置を提供する。【解決手段】レーザ装置1Aは、N個の半導体レーザアレイスタックLS1〜LSNと、N個の半導体レーザアレイスタックLS1〜LSNそれぞれから出力されたレーザ光束L1〜LNの光軸をシフトすることによりレーザ光束L1〜LN同士の間隔を縮小するプリズム光学系10Aと、レーザ光束L1〜LNを光束毎に集光及び偏向する結像光学系18とを備える。結像光学系18は、所定位置Qにおいてレーザ光束L1〜LNが互いに重なるようにレーザ光束L1〜LNを偏向するとともに、結像光学系18と所定位置Qとの間にレーザ光束L1〜LNの集光点P1〜PNを生じさせる。【選択図】図1

Abstract translation: 要解决的问题：为了提供一种不需要使多个半导体激光器阵列彼此相邻的激光器件，并且即使当一部分 半导体激光器阵列堆叠劣化。解决方案：激光器件1A包括：N个半导体激光器阵列堆叠LSto LS; 将激光光束Lto Loutput的光轴从N个半导体激光器阵列堆叠LS-LS中的每一个移位的棱镜光学系统10A，由此减小激光光束Lto L之间的间隔; 以及成像光学系统18，其使每个光束的激光光束LtoL冷凝和偏转。 图像光学系统18将激光光束Lto Loverlap的激光光束Lto Lso彼此偏转到预定位置Q，并且生成图像光学系统18与预定位置之间的激光光束LtoL的聚光点PtoP 问

公开(公告)号：JP2014081274A

公开(公告)日：2014-05-08

申请号：JP2012229145

申请日：2012-10-16

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社 ,  Graduate School For The Creation Of New Photonics Industries ,  学校法人光産業創成大学院大学 ,  Toyota Motor Corp ,  トヨタ自動車株式会社 ,  Toyota Central R&D Labs Inc ,  株式会社豊田中央研究所

Inventor： SEKINE TAKASHI ,  KURITA TAKASHI ,  KAWASHIMA TOSHIYUKI ,  SATO NAKAHIRO ,  SUGA HIROBUMI ,  KITAGAWA YONEYOSHI ,  MORI YOSHITAKA ,  ISHII KATSUHIRO ,  FUJITA KAZUHISA ,  HANAYAMA RYOHEI ,  OKIHARA SHINICHIRO ,  SUNAHARA ATSUSHI ,  YONEDA OSAMU ,  NAKAMURA NAOKI ,  NISHIMURA YASUHIKO ,  AZUMA HIROZUMI

IPC: G21B1/03

CPC classification number: G21B1/03 ,  G21B1/15 ,  G21B1/19 ,  G21B1/23 ,  Y02E30/14 ,  Y02E30/16

Abstract: PROBLEM TO BE SOLVED: To relatively easily control energy supplied to plasma in a center part of a target.SOLUTION: A laser nuclear fusion apparatus comprises: a target shell supply device 3 supplying a target shell Tg1 into a chamber 2; a target shell monitoring device 4 monitoring the posture and position of the target shell Tg1; a compression laser output device 5a and the like, irradiating the target shell Tg1 with a compression laser beam LS1; a heating laser output device 6 irradiating the target shell Tg1 with a heating laser beam LS3 following the compression laser beam LS1. The target shell Tg1 is formed in a hollow spherical shell shape, and is provided with a substantially spherical cavity Sp in the inside, and with at least one through hole H1 connecting the outside and the cavity Sp. An external surface Sf1 of the target shell Tg1 includes irradiation areas Ar1, Ar2 that are to be irradiated with the compression laser beam.

Abstract translation: 要解决的问题：为了相对容易地控制在目标的中心部分提供给等离子体的能量。解决方案：激光核聚变装置包括：目标壳体供应装置3，将目标壳体Tg1提供到腔室2中; 目标壳监视装置4，监视目标壳体Tg1的姿态和位置; 压缩激光输出装置5a等，用压缩激光束LS1照射目标壳体Tg1; 加热激光输出装置6，利用压缩激光束LS1之后的加热激光束LS3照射目标壳体Tg1。 目标壳Tg1形成为中空球壳形状，并且在其内部设置有大致球形的空腔Sp，并且具有连接外部和空腔Sp的至少一个通孔H1。 目标壳体Tg1的外表面Sf1包括要被压缩激光束照射的照射区域Ar1，Ar2。

公开(公告)号：JP2011203648A

公开(公告)日：2011-10-13

申请号：JP2010072862

申请日：2010-03-26

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： MIYANAGA NORIAKI ,  SUEDA KEIICHI ,  KURITA TAKASHI ,  KAWASHIMA TOSHIYUKI

IPC: G02F1/39

Abstract: PROBLEM TO BE SOLVED: To provide a laser amplifier and a laser amplification method providing a high-quality laser beam with a high output.SOLUTION: In the laser amplifier 1, a plurality of pump beams Lto Lis made incident on a nonlinear crystalline body 9 for one signal beam Lso as to satisfy phase matching conditions of beam parametric amplification. Thus, energy is converted from the plurality of pump beams Lto Lto one signal beam Land the signal beam Lis amplified. Then, even when phases of the plurality of pump beams Lto Lmade incident on the nonlinear crystalline body 9 are not equal to each other, random phase difference between the signal beam Land each pump beam Lto Ltransfers to an idler beam and, therefore, one signal beam Lis amplified without being affected by phase information of the plurality of pump beams Lto L.

Abstract translation: 要解决的问题：提供一种提供具有高输出的高质量激光束的激光放大器和激光放大方法。解决方案：在激光放大器1中，入射到非线性晶体体9上的多个泵浦光束Lto 一个信号光束Lso满足光束参数放大的相位匹配条件。 因此，能量从多个泵浦光束L到L转换成信号光束Lis放大的一个信号光束。 然后，即使在入射到非线性晶体体9上的多个泵浦光束Lto L的相位彼此不相等的情况下，信号光束Land各泵浦光束Lto L之间的随机相位差也转移到惰轮，因此，一个信号 光束Lis放大而不受多个泵浦光束Lto L的相位信息的影响。

公开(公告)号：JP2010165494A

公开(公告)日：2010-07-29

申请号：JP2009005438

申请日：2009-01-14

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： MURAKAMI MASAKATSU ,  KATAI TAKASHI ,  KAWASHIMA TOSHIYUKI ,  SUGA HIROBUMI

IPC: H01J27/24 ,  A61N5/10 ,  B82B1/00 ,  G21K1/00

Abstract: PROBLEM TO BE SOLVED: To provide a nanocluster that is used as a target that allows an efficient generation of a monochromatic ion beam by irradiation of a laser.
SOLUTION: To the nanocluster in which at least two kinds of atoms coexist in the constant density respectively and a structure has a spherical shape as a whole, the ion beam is output by irradiating the laser with ultrahigh strength and an ultrashort pulse. On that occasion, the efficiency of output of the ion beam with a prescribed monochrome precision is maximized by optimizing an acceleration efficiency ratio and an electric charge mixing ratio when at least two kinds of atoms to constitute the nanocluster are ionized. The ion beam thus formed is applicable for various uses including cancer therapy.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供用作靶的纳米团簇，其允许通过照射激光有效地产生单色离子束。 解决方案：对于其中至少两种原子分别以恒定密度共存并且结构整体为球形的纳米团簇，通过用超高强度和超短脉冲照射激光来输出离子束。 在这种情况下，当构成纳米团簇的至少两种原子离子化时，通过优化加速效率比和电荷混合比，以规定的单色精度输出离子束的效率最大化。 这样形成的离子束可用于包括癌症治疗在内的各种用途。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010034413A

公开(公告)日：2010-02-12

申请号：JP2008196699

申请日：2008-07-30

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： IKEGAWA YASUSHI ,  KAWASHIMA TOSHIYUKI ,  SUGA HIROBUMI

IPC: H01S3/094 ,  H01S3/06 ,  H01S3/107 ,  H01S3/115

CPC classification number: H01S3/0606 ,  H01S3/025 ,  H01S3/027 ,  H01S3/0405 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0612 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/094053 ,  H01S3/09415 ,  H01S3/115 ,  H01S3/1618 ,  H01S3/1643 ,  H01S3/1685

Abstract: PROBLEM TO BE SOLVED: To provide a solid-state laser apparatus capable of improving coupling efficiency between excitation light and laser light. SOLUTION: The solid-state laser apparatus 1 amplifies and outputs laser light L2 by reciprocating the laser light L2 between an end mirror 3 and an output mirror 4 through a slab type solid-state laser medium 2 excited by excitation light L1. The solid-state laser medium 2 has incident/project end faces 2a, 2b for making incident and projecting the laser light L2 and reflecting end faces 2c, 2d for reflecting the laser light L2 so that the incident laser light L2 is propagated in a zigzag manner. The incident/project end face 2a makes the excitation light L1 incident in the solid-state laser medium 2 so that the excitation light L1 is propagated on a propagation route approximately the same as that of the laser light L2. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供能够提高激发光和激光之间的耦合效率的固体激光装置。 解决方案：固态激光装置1通过由激发光L1激发的板状固体激光介质2使端镜3和输出反射镜4之间的激光L2往复放大并输出激光L2。 固体激光介质2具有用于入射并突出激光L2的入射/突出端面2a，2b和用于反射激光L2的反射端面2c，2d，使得入射激光L2以锯齿形的形式传播 方式。 入射/突出端面2a使激发光L1入射到固态激光介质2中，使得激发光L1在与激光L2大致相同的传播路径上传播。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2007316159A

公开(公告)日：2007-12-06

申请号：JP2006143198

申请日：2006-05-23

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： YASUHARA AKIRA ,  SEKINE TAKASHI ,  KAWASHIMA TOSHIYUKI

IPC: G02B27/28 ,  H01P1/375

Abstract: PROBLEM TO BE SOLVED: To efficiently decrease the influence of a heat effect due to high output of incident light. SOLUTION: The Faraday rotator 1 is equipped with: a Faraday medium 2 composed of magnetooptical material having a magnetooptical effect, whose XY cross section going along in a direction perpendicular to the incident direction (direction Z) of the incident light O in is formed to be rectangular; a cooling part 3 provided in contact with side surfaces 2a and 2b on either opposite sides of the cross section of the Faraday medium 2; a non-magnetic heat insulating member 4 provided in contact with the side surfaces 2c and 2d on the other opposite sides of the cross section of the Faraday medium 2; and a permanent magnet 5 applying magnetic field in the incident direction to the Faraday medium 2. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：有效地降低由于入射光的高输出引起的热效应的影响。 解决方案：法拉第旋转器1配备有：由具有磁光效应的磁光材料构成的法拉第介质2，其XY横截面沿与入射光O的入射方向（Z方向）垂直的方向， 中的SB>形成为矩形; 在法拉第介质2的横截面的相对侧上与侧面2a和2b接触地设置的冷却部3; 与法拉第介质2的横截面的另一侧的侧面2c，2d接触地设置的非磁性绝热部件4; 以及在法拉第介质2的入射方向上施加磁场的永久磁铁5.版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006196679A

公开(公告)日：2006-07-27

申请号：JP2005006602

申请日：2005-01-13

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： KURITA TAKASHI ,  KAWASHIMA TOSHIYUKI ,  SUGA HIROBUMI

IPC: H01S3/094 ,  H01S3/042

Abstract: PROBLEM TO BE SOLVED: To provide a solid state laser amplifier capable of suppressing the generation of heat lens effect even when a part of light source of excitation breaks down, and to provide a solid state laser oscillator. SOLUTION: The solid state laser amplifier 1 is provided with a solid state laser medium 11 in a rectangular parallelepiped shape for amplifying the light to be amplified which is entered into the side by irradiating excitation light on the principal surface, two or more laser array units 15 for outputting the excitation light, and an optical system 17 arranged on the optical path of the excitation light. The optical system increases the irradiation angle of the excitation light outputted by two or more laser array units 15. In the optical paths of the light to be amplified in the solid state laser medium 11, the excitation light is irradiated onto the principal surface so as to enter into the range of optical paths of a predetermined length. In the irradiation range on the principal surface of the excitation light, the excitation light is irradiated so that the irradiation range of the excitation light outputted by the laser array unit 15 of two or more predetermined numbers may overlap mutually. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供即使当激发光源的一部分发生故障时也能够抑制热透镜效应的产生的固体激光放大器，并提供固态激光振荡器。 解决方案：固态激光放大器1设置有长方体形状的固态激光介质11，用于通过在主表面上照射激发光来放大进入侧的待放大光，两个或更多个 用于输出激发光的激光阵列单元15和布置在激发光的光路上的光学系统17。 光学系统增加由两个或更多个激光阵列单元15输出的激发光的照射角度。在固态激光介质11中待放大的光的光路中，激发光照射到主表面上，以便 进入预定长度的光路的范围。 在激发光的主面上的照射范围内，照射激发光，使得由激光阵列单元15输出的激光阵列单元15的两个或更多个预定数量的照射范围可以相互重叠。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006186230A

公开(公告)日：2006-07-13

申请号：JP2004380393

申请日：2004-12-28

Applicant: UNIV OSAKA ,  LASER GIJUTSU SOGO KENKYUSHO ,  HAMAMATSU PHOTONICS KK

Inventor： IZAWA YASUKAZU ,  FUJITA MASAYUKI ,  TOKITA SHIGEKI ,  IKEGAWA YASUSHI ,  KAWASHIMA TOSHIYUKI ,  SUGA HIROBUMI

IPC: H01S3/04

Abstract: PROBLEM TO BE SOLVED: To provide an optical amplifier and a laser oscillator by which high-quality optical output can be obtained, and an optical amplifier module suitably used for the optical amplifier and the laser oscillator. SOLUTION: An optical amplifier module principal part 10A is composed by storing a heat sink 130, a solid-state laser medium 151, transparent members 152, 153, indium foil 154, 155, and a heat insulating member 156 inside a vacuum container 121 having windows 122, 123. The indium foil 154, the transparent member 152, the solid-state laser medium 151, the transparent member 153, and the indium foil 155 respectively have a disk shape and are laminated in that order. Each heat conductivity of the transparent members 152, 153 is higher than the heat conductivity of the solid-state laser medium 151. The heat conductivity of the heat insulating member 156 provided between the solid-state laser medium 151 and the heat sink 130 is lower than that of the solid-state laser medium 151. COPYRIGHT: (C)2006,JPO&NCIPI