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    • 5. 发明专利
    • Laser apparatus
    • 激光装置
    • JP2009182053A
    • 2009-08-13
    • JP2008018008
    • 2008-01-29
    • Hamamatsu Photonics Kk浜松ホトニクス株式会社
    • KAWANAKA JUNJIMIYANAGA NORIAKIIKEGAWA YASUSHIKAWASHIMA TOSHIYUKISUGA HIROBUMI
    • H01S3/07H01S3/081
    • PROBLEM TO BE SOLVED: To provide a laser apparatus suitable to the driver for a laser nuclear fusion reactor.
      SOLUTION: In the laser apparatus 1, an equilateral polygon along which laser-beam incident/outgoing surfaces 18a of laser media 18 are arranged includes n sides. When a laser beam performs its incidence on the k-th laser medium 18 counted from the laser medium 18 wherefrom the laser beam has gone out, the incident angle θ (degree) of the laser beam on the laser-beam incident/outgoing surface 18a of the k-th laser beam medium 18 satisfies the relational expression of 0.9×90×(n-2k)/n≤θ≤1.1×90×(n-2k)/n, wherein n/k is not an integer and (the least common multiple of n and k)≥n×k is existent in the case of [n>3, k≥1], [k 1]. Thereby, all the laser media 18 are so used as to be able to make the laser beam come and go among the laser media 18 and amplify and output the laser beam.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供适用于激光核聚变反应器的驱动器的激光装置。 解决方案:在激光装置1中,激光介质18的激光束入射/出射表面18a沿着该等边多边形包括n侧。 当激光束对从激光束已经熄灭的激光介质18计数的第k个激光介质18进入时,激光束入射/出射表面18a上的入射角θ(度) 的第k个激光束介质18满足0.9×90×(n-2k)/n≤θ≤1.1×90×(n-2k)/ n的关系式,其中,n / k不是整数,( 在[n> 3,k≥1],[k 1]的情况下存在n和k)≥n×k的最小公倍数。 因此,所有激光介质18被用于能够使激光束在激光介质18中进出并放大并输出激光束。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Sol-gel film forming method
    • 溶胶胶膜成型方法
    • JP2005154173A
    • 2005-06-16
    • JP2003392698
    • 2003-11-21
    • Hamamatsu Photonics Kk浜松ホトニクス株式会社
    • MATSUMOTO OSAMUKAWASHIMA TOSHIYUKIKANABE TADASHI
    • C03C17/02
    • PROBLEM TO BE SOLVED: To provide a sol-gel film forming method capable of reducing the unevenness in the thickness of a formed thin film.
      SOLUTION: A tool 60 used for dipping a base material 50 into a sol liquid and pulling up is made by bending a stripe-like plate as shown by Figure. The base material 50 is placed on the tool 60 in use so that the surface 61 of one end part of the tool 60 is in contact with the ridge line between the side surface 51 of one side and the bottom surface 53 of the base material 50 and the surface 62 of another end part of the tool 60 is in contact with the ridge line between side surface 52 of another side and the bottom surface 53 of the base material 50. The base material 50 is dipped into the sol liquid 96 housed in a vessel 95 and pulled up at a fixed speed obtained by the design. In the pulling up, the sol flowing downward on the side surfaces 51 and 52 of the base material 50 furthermore flows downward from the side surfaces 51 and 52 along the surfaces 61 and 62 of the tool 60.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供能够减少形成的薄膜的厚度不均匀性的溶胶 - 凝胶膜形成方法。 解决方案:如图所示,通过弯曲条状板来制造用于将基底材料50浸入溶胶液体并提起的工具60。 基材50在使用中放置在工具60上,使得工具60的一个端部的表面61与一侧的侧表面51和基底材料50的底表面53之间的脊线接触 工具60的另一端部的表面62与另一侧的侧面52与基材50的底面53之间的棱线接触。将基材50浸渍在容纳在 容器95并以通过设计获得的固定速度被拉起。 在上拉时,在基材50的侧面51,52上向下流动的溶胶也沿着工具60的表面61,62从侧面51,52向下流动。(C) 2005年,JPO&NCIPI
    • 7. 发明专利
    • Solid state laser apparatus
    • 固态激光装置
    • JP2005101324A
    • 2005-04-14
    • JP2003333827
    • 2003-09-25
    • Hamamatsu Photonics KkSadao Nakai貞雄 中井浜松ホトニクス株式会社
    • KAWASHIMA TOSHIYUKIKANABE TADASHINAKAI SADAOSUGA HIROBUMI
    • H01S3/042H01S3/06H01S3/094H01S3/0941H01S3/16
    • H01S3/0606H01S3/025H01S3/0407H01S3/042H01S3/0615H01S3/08072H01S3/08095H01S3/0941H01S3/1611H01S3/1643
    • PROBLEM TO BE SOLVED: To provide a solid state laser apparatus capable of cooling a solid state laser medium such that the temperature of the solid state laser medium is made uniform in the direction of the propagation of light to be amplified. SOLUTION: In the solid state laser apparatus 1, cooling water flowing through flow passages 12a, 12b makes direct contact with a pair of reflecting end surfaces 5a, 5b of the solid state laser medium 3, so that the laser medium 3 heated by excitation light emitted from a semiconductor laser 9 can be effectively cooled. Further, the cooling water flowing through the flow passages 12a, 12b flows substantially perpendicularly to a propagation plane P of the light L to be amplified, so that the solid state laser medium 3 can be cooled such that the temperature of the solid state laser medium 3 is made uniform in the direction of the propagation of the light L to be amplified. It is therefore possible to reduce a thermal lens effect and a thermal double refraction effect in the solid state laser medium 3. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种能够冷却固态激光介质的固态激光装置,使得固态激光介质的温度在被放大的光的传播方向上均匀。 解决方案:在固态激光装置1中,流经流路12a,12b的冷却水与固体激光介质3的一对反射端面5a,5b直接接触,激光介质3被加热 可以有效地冷却从半导体激光器9发射的激发光。 此外,流过流路12a,12b的冷却水基本上垂直于要放大的光L的传播面P流动,使得固态激光介质3能够被冷却,使得固态激光介质 3在被放大的光L的传播方向上均匀。 因此,可以在固体激光介质3中降低热透镜效应和热双折射效果。(C)2005,JPO&NCIPI
    • 8. 发明专利
    • Laser medium unit, laser amplifier and laser oscillator and cooling method
    • 激光介质单元,激光放大器和激光振荡器和冷却方法
    • JP2014022568A
    • 2014-02-03
    • JP2012159875
    • 2012-07-18
    • Osaka Univ国立大学法人大阪大学Hamamatsu Photonics Kk浜松ホトニクス株式会社
    • IYAMA KOICHIKAWASHIMA TOSHIYUKIKATO YOSHINORITAMAOKI YOSHIAKIMIYANAGA NORIAKIFUJITA HISANORI
    • H01S3/042
    • PROBLEM TO BE SOLVED: To provide a laser medium unit capable of more reducing the influence of heating of a laser gain medium, and to provide a laser amplifier and a laser oscillator including the same, and a cooling method.SOLUTION: A laser medium unit 10A according to one embodiment includes a laser medium 16 produced by bonding at least one laser gain medium 22 to a first surface 20a and a second surface 20b of an optical medium 20, and a container for housing the laser medium and having a cooling medium flow path through which a cooling medium C for cooling the laser gain medium flows. The cooling medium flow path has a supply flow path 34 for supplying the cooling medium to an arrangement space 28 of the laser medium, and a discharge flow path 30 for discharging the cooling medium from the arrangement space. A medium outlet 40 of the supply flow path is provided for each laser gain medium, and the medium outlets are arranged so that the cooling medium flows from a high intensity region 44a to a low intensity region 44b of intensity distribution in an irradiation region 44 of exciting light L1 for the laser gain medium.
    • 要解决的问题:提供一种能够更加减少激光增益介质的加热影响的激光介质单元,并且提供一种激光放大器和包括该激光放大器的激光振荡器和冷却方法。解决方案:激光介质单元 根据一个实施例的图10A包括通过将至少一个激光增益介质22接合到光学介质20的第一表面20a和第二表面20b而产生的激光介质16,以及用于容纳激光介质并具有冷却介质流的容器 用于冷却激光增益介质的冷却介质C流过的路径。 冷却介质流路具有用于将冷却介质供给到激光介质的配置空间28的供给流路34,以及用于从配置空间排出冷却介质的排出流路30。 为每个激光增益介质提供供应流路的介质出口40,并且介质出口被布置成使得冷却介质从高强度区域44a流向强度分布的低强度区域44b, 用于激光增益介质的激光L1。
    • 9. 发明专利
    • Thrombus removal device
    • THROMBUS移除装置
    • JP2014004219A
    • 2014-01-16
    • JP2012142999
    • 2012-06-26
    • Hamamatsu Photonics Kk浜松ホトニクス株式会社
    • TAMAOKI YOSHIAKIKATO YOSHINORIKAWASHIMA TOSHIYUKI
    • A61B18/20
    • PROBLEM TO BE SOLVED: To provide a thrombus removal device, capable of detecting breakage of an optical fiber with high accuracy.SOLUTION: A thrombus removal device 1 is a device which radiates light to thrombus in a blood vessel to thereby remove the thrombus. The thrombus removal device 1 includes: a light source 11; a polarization beam splitter 12, a λ/4 plate 13; a photo detector 14; an optical fiber 15; a connector 16; an optical fiber 17; a catheter 18; and a window member 19. A reflection reducing film is formed on the end face of a second end 17b of the optical fiber 17. A reflection reducing film for reducing reflection of light when the blood contacts is formed on a second face 19b of the window member 19. The reflectance Ra in the first face 19a of the window member 19 and the reflectance Rb in the second face 19b of the window member 19 when the gas contacts the second face 19b of the window member 19 are respectively set to predetermined values.
    • 要解决的问题:提供一种能够以高精度检测光纤的断裂的血栓消除装置。解决方案:血栓去除装置1是将光照射到血管中的血栓,从而去除血栓的装置。 血栓去除装置1包括:光源11; 偏振分束器12,λ/ 4板13; 光检测器14; 光纤15; 连接器16; 光纤17; 导管18; 和窗构件19.在光纤17的第二端17b的端面上形成反射降低膜。当在窗口的第二面19b上形成血液接触时减少光的反射的反射减少膜 窗构件19的第一面19a中的反射率Ra和窗构件19的第二面19b中的反射率Rb分别设定为预定值。
    • 10. 发明专利
    • Laser apparatus
    • 激光装置
    • JP2013174812A
    • 2013-09-05
    • JP2012040447
    • 2012-02-27
    • Osaka Univ国立大学法人大阪大学Hamamatsu Photonics Kk浜松ホトニクス株式会社
    • MIYANAGA NORIAKIKURITA TAKASHIKAWASHIMA TOSHIYUKI
    • G02F1/39H01S3/10H01S5/065
    • H01S3/1106G02F1/39H01S3/005H01S3/0085H01S3/0092H01S3/1307
    • PROBLEM TO BE SOLVED: To provide a laser apparatus capable of generating a high output pulse laser beam.SOLUTION: A laser apparatus 1 divides seed light Linto a plurality of laser beams L, and then performs continuous light amplification on the plurality of laser beams Lwith an amplification device 14. For this reason, a higher amplification factor can be set in comparison with the case when a pulse laser beam is amplified. In addition, the phase of each laser beam Lis controlled so that, when amplified laser beams Lare respectively multiplexed by a diffraction grating 16 to generate multiplexed light L, output peaks of the multiplexed light Lat a focusing position Pare repeatedly generated by a predetermined time interval. This enables the pulse laser beam to be generated from the laser beams Lamplified at a high amplification factor, at the focusing position P. Thus, the laser apparatus 1 can generate high output pulse laser beams.
    • 要解决的问题:提供能够产生高输出脉冲激光束的激光装置。解决方案:激光装置1将种子光Lin分割成多个激光束L,然后对多个激光束L进行连续的光放大 放大装置14.为此,与脉冲激光束被放大的情况相比,可以设定更高的放大系数。 此外,每个激光束的相位Lis被控制,使得当放大的激光束由衍射光栅16分别复用以产生多路复用光L时,多路复用光Lat的输出峰值聚焦位置Pare重复产生预定的时间间隔 。 这样就可以在聚焦位置P以高放大倍数从放大倍数的激光束产生脉冲激光束。因此,激光装置1可以产生高输出脉冲激光束。