Fabrication of optical waveguides in periodically poled lithium niobate
    1.
    发明申请
    Fabrication of optical waveguides in periodically poled lithium niobate 有权
    在周期性极化的铌酸锂中制作光波导

    公开(公告)号:US20070092194A1

    公开(公告)日:2007-04-26

    申请号:US10595991

    申请日:2004-11-16

    IPC分类号: G02B6/10

    摘要: A method of fabricating an optical waveguide (18) comprises providing a sample of lithium niobate (10) that has one or more periodically poled gratings made by electric field poling, applying a patterned surface layer of metallic zinc (16) to a z-face of the sample so that the layer (16) has a pattern corresponding to an intended pattern of waveguides (18) to be written into the lithium niobate, and heating the sample to diffuse the metallic zinc (16) into the lithium niobate so as to form an optical waveguiding structure (18) within the sample.

    摘要翻译: 一种制造光波导(18)的方法包括提供具有由电场极化制成的一个或多个周期性极化光栅的铌酸锂(10)样品,将金属锌(16)的图案化表面层施加到z面 使得层(16)具有对应于要写入铌酸锂的波导(18)的期望图案的图案,并且加热样品以将金属锌(16)扩散到铌酸锂中,从而 形成样品内的光波导结构(18)。

    Magnesium mechanical alloys for thermal hydrogen storage
    2.
    发明授权
    Magnesium mechanical alloys for thermal hydrogen storage 失效
    用于热氢储存的镁机械合金

    公开(公告)号:US6103024A

    公开(公告)日:2000-08-15

    申请号:US066247

    申请日:1998-04-24

    摘要: A mechanically alloyed hydrogen storage material having 75-95 atomic percent Mg, 5-15 atomic percent Ni, 0.5-6 atomic percent Mo, and at least one additional element selected from the group consisting of Al, C, Ca, Ce, Co, Cr, Cu, Dy, Fe, La, Mn, Nd, Si, Ti, V, and Zr, preferably between 1-15 atomic %. The mechanically alloyed hydrogen storage preferably contains from 3-15 atomic % C and at least one other element selected from the group consisting of Al, Ca, Ce, Cu, Dy, Fe, La, Mn, and Nd. The hydrogen storage materials are created by mechanical alloying in a milling apparatus under an inert atmosphere, such as argon, or a mixed atmosphere, such as argon and hydrogen. The speed and length of the milling are varied.

    摘要翻译: 具有75-95原子%的Mg,5-15原子%的Ni,0.5-6原子%的Mo和至少一种选自Al,C,Ca,Ce,Co的另外的元素的机械合金化的储氢材料, Cr,Cu,Dy,Fe,La,Mn,Nd,Si,Ti,V和Zr,优选为1-15原子%。 机械合金化氢储存层优选含有3-15原子%C和选自Al,Ca,Ce,Cu,Dy,Fe,La,Mn和Nd中的至少一种其它元素。 储氢材料是通过在惰性气氛(如氩气)或混合气氛(如氩气和氢气)下在研磨设备中机械合金化而产生的。 铣削的速度和长度是变化的。

    Fabrication of optical waveguides in periodically poled lithium niobate
    3.
    发明授权
    Fabrication of optical waveguides in periodically poled lithium niobate 有权
    在周期性极化的铌酸锂中制作光波导

    公开(公告)号:US07430356B2

    公开(公告)日:2008-09-30

    申请号:US10595991

    申请日:2004-11-16

    IPC分类号: G02B6/10 G02B6/34

    摘要: A method of fabricating an optical waveguide (18) comprises providing a sample of lithium niobate (10) that has one or more periodically poled gratings made by electric field poling, applying a patterned surface layer of metallic zinc (16) to a z-face of the sample so that the layer (16) has a pattern corresponding to an intended pattern of waveguides (18) to be written int lithium niobate, and heating the sample to diffuse the metallic zinc (16) into the lithium niobate so as to form an optical waveguiding structure (18) within the sample.

    摘要翻译: 一种制造光波导(18)的方法包括提供具有由电场极化制成的一个或多个周期性极化光栅的铌酸锂(10)样品,将金属锌(16)的图案化表面层施加到z面 使得层(16)具有对应于要写入铌酸锂的波导(18)的预期图案的图案,并且加热样品以将金属锌(16)扩散到铌酸锂中以形成 样品内的光波导结构(18)。

    Electric field poling of ferroelectric materials
    5.
    发明授权
    Electric field poling of ferroelectric materials 有权
    铁电材料的电场极化

    公开(公告)号:US08054536B2

    公开(公告)日:2011-11-08

    申请号:US12664193

    申请日:2008-06-11

    IPC分类号: G02F1/355 G02F1/09

    摘要: A method of inducing a periodic variation of nonlinearity value in a sample of ferroelectric material comprises arranging a pair of electrodes on opposite faces of the sample, one electrode defining a desired pattern of nonlinearity variation, applying a pre-bias voltage across the sample for a predetermined time using the electrodes, the pre-bias voltage being less than the coercive field of the ferroelectric material; and after the predetermined time, applying a current-controlled poling voltage across the sample using the electrodes, to produce domain inversion in the sample according to the desired pattern of nonlinearity variation. The pre-bias voltage may be 75% of the coercive field or more, and applied for a pre-determined time between 1 and 100 seconds.

    摘要翻译: 在铁电材料样品中引起非线性值的周期性变化的方法包括在样品的相对面上布置一对电极,一个电极限定期望的非线性变化图案,在样品上施加预偏置电压 使用电极的预定时间,预偏置电压小于铁电材料的矫顽场; 并且在预定时间之后,使用电极在样品上施加电流控制极化电压,以根据期望的非线性变化模式在样品中产生域反转。 预偏置电压可以是矫顽场的75%或更多,并且施加在1和100秒之间的预定时间。

    LIGHTING ASSEMBLY AND HEAT EXCHANGE APPARATUS FOR UNIFORM HEAT DISSIPATION
    6.
    发明申请
    LIGHTING ASSEMBLY AND HEAT EXCHANGE APPARATUS FOR UNIFORM HEAT DISSIPATION 审中-公开
    照明装置和热交换装置,用于均匀散热

    公开(公告)号:US20100220487A1

    公开(公告)日:2010-09-02

    申请号:US12394648

    申请日:2009-02-27

    申请人: Lu Ming Wu Kai Chiu

    发明人: Lu Ming Wu Kai Chiu

    IPC分类号: F21V29/00

    摘要: A heat exchange apparatus and lighting apparatus for uniform heat dissipation are provided. According to one embodiment of the invention, one or more dissipation plates are provided, each of the one or more dissipation plates having a plurality of upstanding fins disposed from the dissipation plate at a predetermined angle, and each of the one or more dissipation plates defines a plurality of slots configured to permit airflow longitudinally through the housing. A housing is provided to receive the one or more dissipation plates, the housing defining at least one opening to permit an inlet of air into the housing. The configuration of the dissipation plates and the housing permit air to move within the housing in a plurality of directions, permitting heat to be dissipated when the housing is positioned in different orientations. Improved heat dissipation thereby results in greater consistency in the performance of the lighting apparatus.

    摘要翻译: 提供了用于均匀散热的热交换装置和照明装置。 根据本发明的一个实施例,提供了一个或多个散热板,所述一个或多个散热板中的每一个具有以预定角度从散热板设置的多个直立翅片,并且所述一个或多个散热板中的每一个限定 多个狭槽被构造成允许气流纵向穿过壳体。 壳体被设置成接收一个或多个散热板,壳体限定至少一个开口以允许空气入口进入壳体。 散热板和壳体的构造允许空气沿着多个方向在壳体内移动,从而当外壳以不同的取向定位时,允许热量消散。 改善的散热因此导致照明装置的性能更加一致。

    ELECTRIC FIELD POLING OF FERROELECTRIC MATERIALS
    8.
    发明申请
    ELECTRIC FIELD POLING OF FERROELECTRIC MATERIALS 有权
    电磁材料电场分析

    公开(公告)号:US20110032597A1

    公开(公告)日:2011-02-10

    申请号:US12664193

    申请日:2008-06-11

    IPC分类号: G02F1/355

    摘要: A method of inducing a periodic variation of nonlinearity value in a sample of ferroelectric material comprises arranging a pair of electrodes on opposite faces of the sample, one electrode defining a desired pattern of nonlinearity variation, applying a pre-bias voltage across the sample for a predetermined time using the electrodes, the pre-bias voltage being less than the coercive field of the ferroelectric material; and after the predetermined time, applying a current-controlled poling voltage across the sample using the electrodes, to produce domain inversion in the sample according to the desired pattern of nonlinearity variation. The pre-bias voltage may be 75% of the coercive field or more, and applied for a pre-determined time between 1 and 100 seconds.

    摘要翻译: 在铁电材料样品中引起非线性值的周期性变化的方法包括在样品的相对面上布置一对电极,一个电极限定期望的非线性变化图案,在样品上施加预偏置电压 使用电极的预定时间,预偏置电压小于铁电材料的矫顽场; 并且在预定时间之后,使用电极在样品上施加电流控制极化电压,以根据期望的非线性变化模式在样品中产生域反转。 预偏置电压可以是矫顽场的75%或更多,并且施加在1和100秒之间的预定时间。

    Magnesium mechanical alloys for thermal hydrogen storage
    9.
    发明授权
    Magnesium mechanical alloys for thermal hydrogen storage 失效
    用于热氢储存的镁机械合金

    公开(公告)号:US5976276A

    公开(公告)日:1999-11-02

    申请号:US66185

    申请日:1998-04-24

    摘要: Mechanically alloyed hydrogen storage materials having a major atomic percentage of magnesium and a minor atomic percentage of at least two elements selected from the group consisting of nickel, molybdenum, iron and titanium. Preferably the mechanical alloy comprises a multi-phase material, including at least one amorphous phase. Also, the at least two elements are preferably either nickel (from about 5 to 15 at. %) and molybdenum (from about 0.5 to 5 at. %) or iron (from about 5 to 15 at. %) and titanium (from about 5 to 15 at. %). The hydrogen storage materials are created by mechanical alloying in a milling apparatus under an inert atmosphere, such as argon, or a mixed atmosphere, such as argon and hydrogen. The speed and length of the milling are varied.

    摘要翻译: 具有主要原子百分比的镁和小于原子百分比的选自镍,钼,铁和钛的至少两种元素的机械合金化储氢材料。 优选地,机械合金包括多相材料,其包括至少一个非晶相。 而且,至少两种元素优选为镍(约5至15原子%)和钼(约0.5至5原子%)或铁(约5至15原子%)和钛(来自约 5至15原子%)。 储氢材料是通过在惰性气氛(如氩气)或混合气氛(如氩气和氢气)下在研磨设备中机械合金化而产生的。 铣削的速度和长度是变化的。