Electrohydrodynamically patterned colloidal crystals
    1.
    发明授权
    Electrohydrodynamically patterned colloidal crystals 失效
    电流动力学图案胶体晶体

    公开(公告)号:US06533903B2

    公开(公告)日:2003-03-18

    申请号:US09843509

    申请日:2001-04-26

    IPC分类号: C07C600

    CPC分类号: C30B29/60 C30B5/00 C30B30/00

    摘要: A method for assembling patterned crystalline arrays of colloidal particles using ultraviolet illumination of an optically-sensitive semiconducting anode while using the anode to apply an electronic field to the colloidal particles. The ultraviolet illumination increases current density, and consequently, the flow of the colloidal particles. As a result, colloidal particles can be caused to migrate from non-illuminated areas of the anode to illuminated areas of the anode. Selective illumination of the anode can also be used to permanently affix colloidal crystals to illuminated areas of the anode while not affixing them to non-illuminated areas of the anode.

    摘要翻译: 一种利用光敏半导体阳极的紫外线照射来组装胶体颗粒的图案化晶体阵列的方法,同时使用阳极将电场施加到胶体颗粒。 紫外线照射增加了电流密度,从而增加了胶体颗粒的流动。 结果,可以使胶体颗粒从阳极的非照射区域迁移到阳极的照明区域。 阳极的选择性照明也可以用于将胶体晶体永久地粘贴到阳极的照明区域,而不将其粘附到阳极的非照明区域。

    Method for electrohydrodynamically assembling patterned colloidal
structures
    2.
    发明授权
    Method for electrohydrodynamically assembling patterned colloidal structures 失效
    电动液相组装图案胶体结构的方法

    公开(公告)号:US5855753A

    公开(公告)日:1999-01-05

    申请号:US756023

    申请日:1996-11-26

    IPC分类号: C25D13/12 C25D13/18

    CPC分类号: C25D13/12 C25D13/18

    摘要: A method apparatus is provided for electrophoretically depositing particles onto an electrode, and electrohydrodynamically assembling the particles into crystalline structures. Specifically, the present method and apparatus creates a current flowing through a solution to cause identically charged electrophoretically deposited colloidal particles to attract each other over very large distances (

    摘要翻译: 提供了一种用于将电极电泳沉积到电极上的电子方法装置,并将电子水动力组装成晶体结构。 具体地说,本发明的方法和装置产生流过溶液的电流,使电泳淀积的胶体粒子相当于电极表面上非常大的距离(<5粒径)彼此吸引,形成二维胶体晶体。 可以通过DC和AC场产生吸引力,并且可以通过调整电流的场强或频率进行调制。 调节颗粒之间的这种“横向吸引”导致电极表面上的二维流体和结晶胶体状态的可逆形成。 进一步的操作允许形成二维或三维胶体晶体,以及更复杂的“设计”结构。 一旦所需的结构形成,这些三维胶体晶体可以通过由施加的场诱导的受控凝结而永久“冷冻”或“胶合”,以形成稳定的晶体结构。

    Apparatus for electrohydrodynamically assembling patterned colloidal
structures
    4.
    发明授权
    Apparatus for electrohydrodynamically assembling patterned colloidal structures 失效
    用于电流动力组装图案化胶体结构的装置

    公开(公告)号:US6033547A

    公开(公告)日:2000-03-07

    申请号:US224788

    申请日:1999-01-04

    IPC分类号: C25D13/12 C25D13/18 C25D15/00

    CPC分类号: C25D13/12 C25D13/18

    摘要: A method apparatus is provided for electrophoretically depositing particles onto an electrode, and electrohydrodynamically assembling the particles into crystalline structures. Specifically, the present method and apparatus creates a current flowing through a solution to cause identically charged electrophoretically deposited colloidal particles to attract each other over very large distances (

    摘要翻译: 提供了一种用于将电极电泳沉积到电极上的电子方法装置,并将电子水动力组装成晶体结构。 具体地说,本发明的方法和装置产生流过溶液的电流,使电泳淀积的胶体粒子相当于电极表面上非常大的距离(<5粒径)彼此吸引,形成二维胶体晶体。 可以通过DC和AC场产生吸引力,并且可以通过调整电流的场强或频率进行调制。 调节颗粒之间的这种“横向吸引”导致电极表面上的二维流体和结晶胶体状态的可逆形成。 进一步的操作允许形成二维或三维胶体晶体,以及更复杂的“设计”结构。 一旦所需的结构形成,这些三维胶体晶体可以通过由施加的场诱导的受控凝结而永久“冷冻”或“胶合”,以形成稳定的晶体结构。

    Microfluidic control for waveguide optical switches, variable attenuators, and other optical devices
    7.
    发明授权
    Microfluidic control for waveguide optical switches, variable attenuators, and other optical devices 有权
    用于波导光开关,可变衰减器和其他光学器件的微流控制

    公开(公告)号:US07283696B2

    公开(公告)日:2007-10-16

    申请号:US11289188

    申请日:2005-11-28

    IPC分类号: G02B6/10

    摘要: Devices utilize elements carried by a fluid in a microchannel to switch, attenuate, shutter, filter, or phase shift optical signals. In certain embodiments, a microchannel carries a gaseous or liquid slug that interacts with at least a portion of the optical power of an optical signal traveling through a waveguide. The microchannel may form part of the cladding of the waveguide, part of the core and the cladding, or part of the core only. The microchannel may also have ends or may be configured as a loop or continuous channel. The fluid devices may be self-latching or may be semi-latching. The fluid in the microchannel is moved using e.g., e.g., electrocapillarity, differential-pressure electrocapillarity, electrowetting, continuous electrowetting, electrophoresis, electroosmosis, dielectrophoresis, electro-hydrodynamic electrohydrodynamic pumping, magneto-hydrodynamic magnetohydrodynamic pumping, thermocapillarity, thermal expansion, dielectric pumping, and/or variable dielectric pumping.

    摘要翻译: 设备利用由微通道中的流体承载的元件来切换,衰减,快门,滤波或相移光信号。 在某些实施例中,微通道携带气体或液体块,其与穿过波导的光信号的光功率的至少一部分相互作用。 微通道可以形成波导的包层的一部分,芯部的一部分和包层,或仅部分芯部。 微通道还可以具有端部或者可以被配置为环路或连续通道。 流体装置可以是自锁的或可以是半锁定的。 微通道中的流体例如使用电毛细管力,差压电毛细管力,电润湿,连续电润湿,电泳,电渗,介电电泳,电流动力学电流动力学泵浦,磁流体动力学磁流体动力学泵浦,热吸收,热膨胀,介电泵送, 和/或可变电介质泵浦。