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    Method and apparatus for enhanced evanescent fluorescence and color filtering using a high refractive index thin film coating
    4.
    发明授权
    Method and apparatus for enhanced evanescent fluorescence and color filtering using a high refractive index thin film coating 有权
    使用高折射率薄膜涂层增强ev逝荧光和滤色的方法和装置

    公开(公告)号：US06188812B1

    公开(公告)日：2001-02-13

    申请号：US09238473

    申请日：1999-01-28

    Applicant: Hung Pin Kao ,  Joseph Schoeniger ,  Nancy Yang

    Inventor： Hung Pin Kao ,  Joseph Schoeniger ,  Nancy Yang

    IPC: G02B600

    CPC classification number: G01N21/648 ,  G01N21/7703 ,  G02B6/262 ,  G02B6/4203

    Abstract: A technique for increasing the excitation and collection of evanescent fluorescence radiation emanating from a fiber optic sensor having a high refractive index (nr), dielectric thin film coating has been disclosed and described. The invention comprises a clad optical fiber core whose cladding is removed on a distal end, the distal end coated with a thin, non-porous, titanium dioxide sol-gel coating. It has been shown that such a fiber will exhibit increased fluorescence coupling due in part by 1) increasing the intensity of the evanescent field at the fiber core surface by a constructive interference effect on the propagating light, and 2) increasing the depth of penetration of the field in the sample. The interference effect created by the thin film imposes a wavelength dependence on the collection of the fluorescence and also suggests a novel application of thin films for color filtering as well as increasing collected fluorescence in fiber sensors. Collected fluorescence radiation increased by up to 6-fold over that of a bare fused silica fiber having a numerical aperture (N.A.) of O.6.

    Abstract translation: 已经公开并描述了一种用于增加从具有高折射率（nr）的介电薄膜涂层的光纤传感器发出的消逝荧光辐射的激发和收集的技术。 本发明包括包覆光纤芯，其包层在远端被去除，远端涂覆有薄的，无孔的二氧化钛溶胶 - 凝胶涂层。 已经表明，这种纤维将表现出增加的荧光耦合，其部分原因是：1）通过对传播光的建设性干涉效应来增加纤芯表面处的消逝场的强度，以及2）增加穿透深度 样本中的字段。 由薄膜产生的干涉效应对荧光的收集施加了波长依赖性，并且还提出了用于滤色的薄膜的新颖应用以及增加光纤传感器中的收集的荧光。 收集的荧光辐射比具有O.6的数值孔径（N.A.）的裸熔融石英纤维的荧光辐射增加高达6倍。

    Magnetic separation of devitrified particles from corrosion-resistant iron-based amorphous metal powders
    7.
    发明授权
    Magnetic separation of devitrified particles from corrosion-resistant iron-based amorphous metal powders 有权
    从耐腐蚀铁基非晶态金属粉末中分离失透颗粒

    公开(公告)号：US08245661B2

    公开(公告)日：2012-08-21

    申请号：US11595056

    申请日：2006-11-09

    Applicant: Phillip D. Hailey ,  Sumner D. Day ,  Joseph C. Farmer ,  Nancy Yang ,  Thomas M. Devine, Jr. ,  Larry Kaufman

    Inventor： Phillip D. Hailey ,  Sumner D. Day ,  Joseph C. Farmer ,  Nancy Yang ,  Thomas M. Devine, Jr. ,  Larry Kaufman

    IPC: B05C19/00 ,  B05B15/02 ,  B05B5/025

    CPC classification number: C23C4/12 ,  B03C1/0332 ,  B03C1/30 ,  B05B5/00 ,  C23C4/073 ,  C23C24/04 ,  H01F1/15308

    Abstract: A system for coating a surface comprising providing a source of iron-based amorphous metal, the iron-based amorphous metal including devitrified ferrite; directing the iron-based amorphous metal toward the surface by a spray for coating the surface; and separating at least a portion of the devitrified ferrite from the spray before the spray reaches the surface. Also an apparatus for coating a surface comprising a source of iron-based amorphous metal, the iron-based amorphous metal including devitrified ferrite; an application system for directing the iron-based amorphous metal toward the surface by a spray for coating the surface, and a system for separating at least a portion of the devitrified ferrite from the spray before the spray reaches the surface.

    Abstract translation: 一种用于涂覆表面的系统，包括提供铁基非晶态金属源，所述铁基非晶态金属包括失透铁素体; 通过用于涂覆表面的喷雾将铁基非晶态金属引导到表面; 并且在喷雾到达表面之前将至少一部分失透铁素体与喷雾分离。 还有一种用于涂覆包括铁基非晶态金属源的表面的设备，所述铁基非晶态金属包括失透铁素体; 用于通过用于涂覆表面的喷雾将铁基非晶态金属朝向表面引导的应用系统，以及用于在喷雾到达表面之前将至少一部分失透铁素体与喷雾分离的系统。

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