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1. 发明授权

US5614258A Process of diamond growth from C.sub.70 失效
标题翻译： C70钻石生长过程
公开(公告)号：US5614258A
公开(公告)日：1997-03-25
申请号：US391705
申请日：1995-02-21
申请人： Martin Moskovits , Kejian Fu , Xijia Gu
发明人： Martin Moskovits , Kejian Fu , Xijia Gu
IPC分类号： C23C16/27 , C30B23/00 , C30B25/00 , C30B29/04 , B01J3/06
CPC分类号： C30B23/00 , C23C16/27 , C30B25/00 , C30B29/04
摘要： A method of growing diamond crystals in excess of 10 .mu.m in diameter from industrial diamond "seeds" having mean diameters of approximately 1.5 .mu.m is disclosed. The diamonds are grown by exposing the seed diamonds to C.sub.70 in the presence of reducing agents such as phosphorus or selenium in evacuated cells at moderate temperatures and pressures.
摘要翻译：公开了从具有平均直径约1.5μm的工业金刚石“种子”生长直径超过10μm的金刚石晶体的方法。在中等温度和压力下，在真空的细胞中，在还原剂如磷或硒的存在下，将种子金刚石暴露于C70来生长钻石。

2. 发明授权

US06565992B1 Phosphorescent oxygen sensors 失效
标题翻译：磷光氧传感器
公开(公告)号：US06565992B1
公开(公告)日：2003-05-20
申请号：US09189437
申请日：1998-11-10
申请人： Ian Manners , Xijia Gu , Zhen Pang , Mitchell A. Winnik , Yizeng Ni
发明人： Ian Manners , Xijia Gu , Zhen Pang , Mitchell A. Winnik , Yizeng Ni
IPC分类号： G01N2100
CPC分类号： G01N21/643 , G01L11/02 , G01N2021/6432 , Y10T436/207497
摘要： A pressure sensor comprising a stable polymer having a backbone containing nitrogen and one or more of sulfur or phosphorous, and including a phosphorescent dye agent.
摘要翻译：一种压力传感器，包括具有含有氮和硫或磷中的一种或多种的骨架的稳定聚合物，并且包括磷光染料剂。

3. 发明申请

US20090097807A1 Shaping a laser beam with a fiber-based device 审中-公开
标题翻译：用光纤设备形成激光束
公开(公告)号：US20090097807A1
公开(公告)日：2009-04-16
申请号：US11907650
申请日：2007-10-16
申请人： Xijia Gu , Waleed Soliman Mohammed Soliman
发明人： Xijia Gu , Waleed Soliman Mohammed Soliman
IPC分类号： G02B6/02
CPC分类号： G02B6/02095 , G02B6/14 , G02B27/0927 , G02B27/0994 , H01S3/005
摘要： A fiber-based device and associated method effectively convert a laser beam with an initial intensity distribution of Gaussian shape into a beam with another intensity distribution, which might typically be uniform or ring-shaped although other configurations are possible. The device comprises a single mode fiber with a core in which the beam is guided and a cladding surrounding the core. A component inline with the fiber couples a portion of the guided beam from the core into the cladding for propagation through the cladding toward an output end of the fiber. Interaction between core and cladding propagation modes produces the other intensity distribution at a predetermined distance from the output end of the fiber.
摘要翻译：基于光纤的装置和相关方法将具有高斯形状的初始强度分布的激光束有效地转换为具有另一强度分布的光束，尽管其它配置是可能的，但是其通常可以是均匀的或环形的。该装置包括具有芯的单模光纤，其中光束被引导，围绕芯的包层。与纤维成直角的部件将引导束的一部分从芯部耦合到包层中，以通过包层向纤维的输出端传播。芯与包层传播模式之间的相互作用产生距纤维输出端一预定距离处的其他强度分布。

4. 发明授权

US06398778B1 Optical fiber diffuser 失效
标题翻译：光纤扩散器
公开(公告)号：US06398778B1
公开(公告)日：2002-06-04
申请号：US09335744
申请日：1999-06-18
申请人： Xijia Gu , Robin Chi-Hung Tam
发明人： Xijia Gu , Robin Chi-Hung Tam
IPC分类号： A61B1818
CPC分类号： G02B6/02142 , G02B6/0008 , G02B6/001 , G02B6/02 , G02B6/02052 , G02B6/241 , G02B6/2817
摘要： Optical fiber diffusers for emitting light cylindrically along a length of the fiber diffuser with preselected light intensity distributions along the length of the diffuser. The diffuser portion is defined by forming a Bragg grating in a section of the optical fiber core having a modulated index of refraction which acts to couple light radially out of the fiber along the diffuser section. The intensity distribution of light coupled out of the diffuser section of the fiber is controlled by controlling the profile of the modulated index of refraction, namely the coupling coefficient, along the length of the grating. For photodynamic therapy type II strong Bragg gratings are preferred which give higher intensity output over short distances. Multiple Bragg gratings can be written into a multimode fiber for emission of light at several positions along the fiber. Writing a Bragg grating into a multimode fiber provides a method of monitoring transmission in the fiber since some of the light can be coupled out and detected and interrogated. The diffuser device can be used as sensors since they also couple light incident on the diffuser into the core where it is transmitted to a detector.
摘要翻译：用于沿着光纤扩散器的长度沿着扩散器的长度沿预定的光强度分布发光的光纤漫射器。扩散器部分通过在具有调制折射率的光纤芯部分中形成布拉格光栅来限定，所述调制折射率用于沿着漫射器部分沿光纤径向耦合光。通过控制沿着光栅长度的调制折射率的分布，即耦合系数，来控制耦合在光纤扩散器部分之外的光的强度分布。对于光动力治疗，II型强布拉格光栅是优选的，其在短距离内提供较高强度的输出。可以将多个布拉格光栅写入多模光纤中，以沿着光纤在多个位置发射光。将布拉格光栅写入多模光纤提供了监测光纤中的传输的方法，因为一些光可以耦合出来并被检测和询问。扩散器装置可以用作传感器，因为它们也将入射到扩散器上的光耦合到核心中，在那里它被传输到检测器。

5. 发明授权

US5854682A Method and apparatus for surface pressure mapping of rotating objects by synchronized optical imaging of luminescent coating 失效
标题翻译：通过发光涂层的同步光学成像，旋转物体的表面压力映射的方法和装置
公开(公告)号：US5854682A
公开(公告)日：1998-12-29
申请号：US848756
申请日：1997-05-01
申请人： Xijia Gu
发明人： Xijia Gu
IPC分类号： G01L11/02 , G01N21/64 , G01N21/84 , G01L9/00 , G01M9/00
CPC分类号： G01N21/6447 , G01L11/02
摘要： The present invention provides a new synchronized optical method for measuring surface pressure on rotating objects such as propellers or other rotating objects. The technique is based on the phenomenon of oxygen quenching of luminescence coatings and synchronized optical imaging. A surface coating, referred to as a pressure sensitive paint (PSP), is formed by mixing photo-luminescence molecules in an oxygen permeable polymer. The luminescence excited by an appropriate light source decreases as the oxygen concentration rises due to quenching. As a result, the luminescence intensity of light emitted from the coating varies as a function of the partial pressure of oxygen. A digital camera measures the luminescence intensity distribution over the object and the pressure distribution can be computed.
摘要翻译：本发明提供一种用于测量诸如螺旋桨或其它旋转物体的旋转物体上的表面压力的新的同步光学方法。该技术基于发光涂层的氧淬现象和同步光学成像。称为压敏涂料（PSP）的表面涂层是通过在透氧聚合物中混合光致发光分子而形成的。由于淬火时氧气浓度升高，适当光源激发的发光减少。结果，从涂层发射的光的发光强度随着氧分压的函数而变化。数码相机测量物体上的发光强度分布，并且可以计算压力分布。

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