专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07113325B1 Wavelength conversion method with improved conversion efficiency 有权
标题翻译：具有改善转换效率的波长转换方法
公开(公告)号：US07113325B1
公开(公告)日：2006-09-26
申请号：US11381482
申请日：2006-05-03
申请人： Peter F. Moulton , Alex Dergachev , Genta Masada , Ichiro Sekine , Masakuni Takahashi
发明人： Peter F. Moulton , Alex Dergachev , Genta Masada , Ichiro Sekine , Masakuni Takahashi
IPC分类号： G02F1/35 , G02F1/37 , G02F1/39
CPC分类号： G02F1/3544 , G02F1/0147 , G02F1/0338
摘要： A nonlinear optical conversion device includes a nonlinear crystal having entrance and exit surfaces allowing input and output laser beams to propagate in the phase-matching plane for a desired nonlinear generation process. The nonlinear generation process involves a nonlinear interaction in the nonlinear crystal and resultant conversion of power in one or two input beams into power in the output beam. The nonlinear crystal is characterized by absorption and resultant modification of the crystal properties by the power in the output beam, the modification with the potential for reducing the efficiency of the nonlinear process in the crystal, and the nonlinear process involving critical phase-matching in the nonlinear crystal in which the powers in the output beam and input beam or beams propagate in different directions through the process of Poynting vector walk-off. The input beam or beams are of a sufficiently small beam dimension in the phase-matching plane.
摘要翻译：非线性光学转换装置包括具有入射和出射表面的非线性晶体，允许输入和输出激光束在相位匹配平面中传播以达到期望的非线性生成过程。非线性生成过程涉及非线性晶体中的非线性相互作用，并且将一个或两个输入光束中的功率的结果转换成输出光束中的功率。非线性晶体的特征在于通过输出光束中的功率的晶体特性的吸收和变化，具有降低晶体中的非线性过程的效率的可能性的修改以及涉及在晶体中的关键相位匹配的非线性处理非线性晶体，其中输出光束和输入光束或光束中的光束通过坡印廷矢量散射的过程在不同方向上传播。输入光束或光束在相位匹配平面中具有足够小的光束尺寸。

2. 发明申请

US20050117199A1 Wavelength conversion method and wavelength conversion element 有权
标题翻译：波长转换方法和波长转换元件
公开(公告)号：US20050117199A1
公开(公告)日：2005-06-02
申请号：US10938772
申请日：2004-09-09
申请人： Genta Masada , Hiroyuki Shiraishi , Ichiro Sekine
发明人： Genta Masada , Hiroyuki Shiraishi , Ichiro Sekine
IPC分类号： G02F1/35 , G02F1/37 , H01S3/10
CPC分类号： G02F1/37 , G02F2001/3546
摘要： An ultraviolet laser is provided that increases the conversion efficiency of laser beams when harmonics having wavelengths of less than 355 nm are generated by converting laser beams with a wavelength conversion element made of a single crystal of lithium tetraborate. A wavelength conversion element is heated and controlled to a specific temperature (for example, 200° C.) within a temperature range of 200 to 450° C. with a predetermined temperature precision.
摘要翻译：提供一种紫外线激光器，其通过用由四硼酸锂的单晶制成的波长转换元件转换激光束来产生具有小于355nm波长的谐波的激光束的转换效率。将波长转换元件在200〜450℃的温度范围内以规定的温度精度进行加热控制至特定温度（例如200℃）。

3. 发明授权

US07227680B2 Optical wavelength conversion method, optical wavelength conversion system, program and medium, and laser oscillation system 失效
标题翻译：光波长转换法，光波长转换系统，程序与介质，激光振荡系统
公开(公告)号：US07227680B2
公开(公告)日：2007-06-05
申请号：US10477753
申请日：2002-05-23
申请人： Ichiro Sekine , Hiroyuki Shiraishi , Hirokazu Kato , Genta Masada , Noriko Watanabe
发明人： Ichiro Sekine , Hiroyuki Shiraishi , Hirokazu Kato , Genta Masada , Noriko Watanabe
IPC分类号： G02F1/35
CPC分类号： G02F1/37 , G02F1/3525 , G02F1/3534 , G02F2001/3507
摘要： In an optical wavelength converting method in which light from a laser oscillator that oscillates coherent light of an inherent wavelength λ is employed as incident light, and is made to input to a nonlinear optical crystal, and light having a wavelength of ½λ is radiated, the wavelength of the incident light is 1000 nm or less, and the peak power density of the incident light is 0.1–10 fold greater than the peak power density that provides the maximum conversion efficiency. The nonlinear optical crystal is heated to and maintained at 200–600° C. Prescribed fundamental waves are input to a first crystal and a second crystal sequentially. The first crystal has a higher bulk damage threshold value with respect to the fundamental waves than that of the second crystal. The second crystal has a higher effective nonlinear constant with respect to the fundamental waves than that of the first crystal.
摘要翻译：在使用来自振荡固有波长λ的相干光的激光振荡器的光作为入射光并且被输入到非线性光学晶体的光波长转换方法中，并且辐射具有1/2λ波长的光，入射光的波长为1000nm以下，入射光的峰值功率密度比提供最大转换效率的峰值功率密度大0.1〜10倍。将非线性光学晶体加热并保持在200-600℃。顺序地将规定的基波输入到第一晶体和第二晶体。相对于基波，第一晶体具有比第二晶体更高的体积损伤阈值。相对于第一晶体，第二晶体相对于基波具有更高的有效非线性常数。

4. 发明授权

US07218653B2 Wavelength conversion method and wavelength conversion element 有权
标题翻译：波长转换方法和波长转换元件
公开(公告)号：US07218653B2
公开(公告)日：2007-05-15
申请号：US10938772
申请日：2004-09-09
申请人： Genta Masada , Hiroyuki Shiraishi , Ichiro Sekine
发明人： Genta Masada , Hiroyuki Shiraishi , Ichiro Sekine
IPC分类号： H01S3/10 , G02F1/35
CPC分类号： G02F1/37 , G02F2001/3546
摘要： An ultraviolet laser is provided that increases the conversion efficiency of laser beams when harmonics having wavelengths of less than 355 nm are generated by converting laser beams with a wavelength conversion element made of a single crystal of lithium tetraborate. A wavelength conversion element is heated and controlled to a specific temperature (for example, 200° C.) within a temperature range of 200 to 450° C. with a predetermined temperature precision.
摘要翻译：提供一种紫外线激光器，其通过用由四硼酸锂的单晶制成的波长转换元件转换激光束来产生具有小于355nm波长的谐波的激光束的转换效率。将波长转换元件在200〜450℃的温度范围内以规定的温度精度进行加热控制至特定温度（例如200℃）。

5. 发明授权

US4861550A Corrosion-resistant nickel-base alloy having high resistance to stress corrosion cracking 失效
标题翻译：耐腐蚀的镍基合金具有很高的抗应力腐蚀开裂性能
公开(公告)号：US4861550A
公开(公告)日：1989-08-29
申请号：US135958
申请日：1988-03-14
申请人： Takeshi Yoshida , Yoshio Takizawa , Ichiro Sekine
发明人： Takeshi Yoshida , Yoshio Takizawa , Ichiro Sekine
IPC分类号： C22C19/03
CPC分类号： C22C19/03
摘要： The invention relates to a Ni-base alloy which contains Mo, Al and Fe, and further, as required, one or more of the following: a group consisting of one or more of V, W, Cr and Cu; one or both of B and Ca; and Co. The alloy of the invention has excellent resistance to stress corrosion cracking even after being subjected to thermal processing such as welding without need for solution treatment thereafter.
摘要翻译：本发明涉及一种含有Mo，Al和Fe的Ni基合金，进一步根据需要，可以使用以下一种或多种：由V，W，Cr和Cu中的一种或多种组成的组; B和Ca中的一种或两种; 本发明的合金即使在经受热处理如焊接之后也具有优异的耐应力腐蚀开裂性，因此此后不需要固溶处理。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式