Near field transducer with shaped energy radiating end
    8.
    发明授权
    Near field transducer with shaped energy radiating end 有权
    具有形状能量辐射端的近场传感器

    公开(公告)号:US08385159B2

    公开(公告)日:2013-02-26

    申请号:US12785003

    申请日:2010-05-21

    IPC分类号: G11B11/00

    摘要: A magnetic recording head consists of a write pole and a near field transducer close to the write pole that focuses light energy to a focal point. A near field transducer is positioned to receive light energy from a waveguide. The near field transducer comprises an energy-receiving end and an energy-radiating end. The energy-receiving end is located near the focal point of the waveguide and the energy-radiating end is shaped such that it is narrower closer to the write pole and wider farther from the write pole.

    摘要翻译: 磁记录头由靠近写入极的写极和近场传感器组成,将光能聚焦到焦点。 定位近场传感器以从波导接收光能。 近场换能器包括能量接收端和能量辐射端。 能量接收端位于波导的焦点附近,并且能量辐射端被成形为使得其更靠近写入极并且比写入极更远。

    Optical assaying method and system having movable sensor with multiple sensing regions

    公开(公告)号:US06277653B1

    公开(公告)日:2001-08-21

    申请号:US09342420

    申请日:1999-06-29

    IPC分类号: G01N33543

    摘要: An optical assaying method and system having a movable sensor is described. In one aspect, the present invention is a sensing system having a rotating sensor disk coated with indicator dyes sensitized to a variety of substances. In this configuration the sensing system further includes a detector for sensing spectral changes in light received from one or more of the indicator dyes. In another aspect, the present invention is a sensing system having a surface plasmon resonance sensor disk having grooves extending radially from a center of the disk. In yet another aspect, the present invention is a sensing system including a diffraction anomaly sensor disk having a dielectric layer that varies in thickness. The present invention allows for construction of an inexpensive sensing system that is capable of easily detecting a variety of substances either in a sample or a surrounding environment. Furthermore, the present invention provides a sensing system capable of sensing multiple substances without requiring multiple sensors.