Scanning near-field optical microscope
    2.
    发明公开
    Scanning near-field optical microscope 失效
    扫描近场光学显微镜

    公开(公告)号:EP0593835A1

    公开(公告)日:1994-04-27

    申请号:EP92810813.3

    申请日:1992-10-22

    摘要: This scanning near-field optical microscope is of the type where a light beam (19) with a diameter of at maximum λ/20 is emitted, or received, by a sharply pointed probe tip (13) which is scanned across the surface of a sample (11) to be investigated. The light reflected by, and/or transmitted through, the sample (11) is detected by a detector (16) and/or further processed by a computer (24). The distance between the light-emitting probe tip (13) and the sample (11) under investigation is on the order of λ/20 as well, so that the surface of the sample (11) is within the near-field of said probe tip (13). This optical microscope is characterized in that the gap between the probe tip (13) and the sample (11) is filled with a liquid (40) of high opacity, including any liquids with a large negative dielectric constant ε, so as to attenuate the intensity of the lightwaves emitted or received by the probe tip (13) to such an extent that the penetration depth z₀ of the lightwaves inside the liquid, defined as the distance over which their intensity decreases to 1/e, is below 100 nm.

    摘要翻译: 该扫描近场光学显微镜是这样的类型,其中直径最大为λ/ 20的光束(19)被尖锐尖的探针尖端(13)发射或接收,该探针尖端穿过 样本(11)进行调查。 由样品(11)反射和/或透过样品(11)的光由检测器(16)检测和/或由计算机(24)进一步处理。 发光探针尖端(13)与研究中的样品(11)之间的距离也在λ/ 20的数量级上,使得样品(11)的表面处于所述探针的近场内 提示(13)。 该光学显微镜的特征在于探针尖端(13)和样品(11)之间的间隙充满高不透明度的液体(40),包括具有大的负介电常数ε的任何液体,以衰减 由探针尖端(13)发射或接收的光波的强度达到这样的程度,即液体内光波的穿透深度z 0(定义为其强度降低到1 / e的距离)低于100nm。

    Sensor for converting a distance to optical and further to electrical energy, and surface scanning apparatus using same
    4.
    发明公开
    Sensor for converting a distance to optical and further to electrical energy, and surface scanning apparatus using same 失效
    传感器,用于在光学和进一步转化为电能的转换的距离; 为通过使用相同的扫描表面的装置。

    公开(公告)号:EP0308537A1

    公开(公告)日:1989-03-29

    申请号:EP87114008.3

    申请日:1987-09-25

    IPC分类号: G01B11/30 G02B21/00 G11B7/09

    摘要: A sensor body (1) is formed as a light waveguide for laser light (2). A light exit site (10) for light diffracted within the sensor body (1) is located at a surface (6) thereof which faces away from a measured body (M).
    A detection particle (15) is located at the surface (5) of the sensor body (1) facing the measured body (M). It has a substantially convex and rounded off form and a major dimension which is smaller than the wavelength of the light (2). The measured body (M) is located in the optical near field of the detection particle (15). The latter has a major dimension of 5 to 500 nm and preferably of 20 to 100 nm.
    A detector means (11) converts the optical energy of the diffracted light to an electrical detector signal.
    A continuous thin film (16) is provided as a coating for the sensor (S). It substantially covers the detection particle (15) and at least part of the surface (5) of the sensor body (1) in the vicinity of the detection particle (15) It has a thickness which is smaller than one half of said predetermined wavelength. Preferably it is formed of gold and has a thickness of less than 100 nm.
    The sensor is used to finally convert a distance to an electrical quantity.

    摘要翻译: 传感器主体(1)被形成为光波导激光(2)。 传感器主体(1)内的衍射光出射点(10),用于光位于一个表面(6)其面向从测量的体(M)的距离。 一种检测粒子(15)位于所述传感器主体(1)的面向测量的体(M)的表面(5)。 它有一个大致凸起和四舍五入的形式和一个大尺寸的所有比的光(2)的波长小。 被测体(M)位于所述检测粒子(15)的光学近场。 后者具有的5至500nm,优选20至100nm的主要尺寸。的检测器装置(11)的衍射光的光能量转换为在电探测器信号。 一种连续薄膜(16)被设置为用于所述传感器(S)上的涂层。 其基本覆盖检测粒子(15)和所述传感器主体(1)在检测粒子(15)的附近帮助的表面(5)的至少一部分,设有一个厚度所有这些是所述预定波长的小于一 , 优选地,它被形成的金,并且具有的厚度为小于100纳米。该传感器用于在电气量的距离最终转化成。

    Piezoelectric stepping rotator
    5.
    发明公开
    Piezoelectric stepping rotator 失效
    Piezoelektrischer Rotationsschrittantrieb。

    公开(公告)号:EP0160707A1

    公开(公告)日:1985-11-13

    申请号:EP84104926.5

    申请日:1984-05-03

    IPC分类号: H01L41/08 G12B1/00

    CPC分类号: B82Y15/00 H02N2/101

    摘要: The rotator comprises a piezoelectric bender (4) pivotally supported (2, 3) at one end and carrying a clamping means (6) to which a "payload" (7) may be attached. The bender (4) has split electrodes to keep its ends parallel when energized. Normally engaging the clamping means (6) are clamping members (15, 17) attached to a pair of piezoelectric benders (10,11) which are fixed in supports (12, 13) resting on a base plate (1).
    With the pair of benders (10, 11) energized, the clamping means (6) is released and energization of the central bender (4) results in the lifting of the payload (7) by one step. The clamping means (6) is then re-arrested and its pivot (2, 3) released by reversing the polarities at the pair of benders (10, 11), and the central bender (4) is permitted to stretch. the rotator is then prepared for the next step of rotation about the pivot (2). This embodiment permits rotation through about 15 degrees. Two further embodiments conceived for unlimited rotation are described.

    Distance-controlled tunneling transducer and direct access storage unit employing the transducer
    8.
    发明公开
    Distance-controlled tunneling transducer and direct access storage unit employing the transducer 失效
    距离控制的隧穿换能器和与直接访问中使用的换能器存储单元中。

    公开(公告)号:EP0363550A1

    公开(公告)日:1990-04-18

    申请号:EP88810704.2

    申请日:1988-10-14

    摘要: This distance-controlled tunneling transducer (1) comprises a plurality of sharply pointed tips (2) arranged in an array at tunneling distance from the electrically conductive surface (6) of a storage medium (7). Each tip (2) is attached to a cantilever beam (3) permitting the distance between each tip (2) and the surface (6) to be individually pre-adjusted by electrostatic means (8, 9). Arranged in juxtaposition with each cantilever beam (3) is a simple active control circuit (12, 13, 16) for adjusting the tip/surface distance during operation of a storage unit, thus preventing crashes of the associated tip (2) into possible asperities on the surface (6) of the recording medium (7). each control circuit (12, 13, 16) is designed such that its operating voltage, at the same time, serves to pre-adjust its associated cantilever beam (3) and to maintain the gap width essentially constant.

    摘要翻译: 该距离控制的换能器的隧道(1)包括尖锐尖端(2)在从所述导电表面在隧道距离在阵列布置的多个存储介质中的(6)(7)。 每个尖端(2)被附接到一个悬臂梁(3)允许每个尖端(2)和所述表面(6)之间的距离被单独预先调节通过静电装置(8,9)。 布置在与每个悬臂梁(3)并列是一个简单的主动控制电路(12,13,16),用于存储单元的外科手术过程中调节塞尖/塞表面的距离,从而防止相关的尖端(2)的崩溃成可能凹凸 表面(6)上的记录介质(7)。 每个控制电路(12,13,16)被设计检查做它的工作电压,同时,用于预先调整其相关联的悬臂梁(3)和保持间隙宽度基本上恒定。

    Spin-polarized scanning tunneling microscope
    9.
    发明公开
    Spin-polarized scanning tunneling microscope 失效
    光栅隧道旋转。

    公开(公告)号:EP0355241A1

    公开(公告)日:1990-02-28

    申请号:EP88810570.7

    申请日:1988-08-18

    IPC分类号: G01N27/00

    摘要: In a preferred embodiment of this scanning tunneling microscope, the tunnel tip (15) consists of an optically transparent body coated with a semiconductor layer, such as a GaAs layer. The sample (19) being investigated consists of a magnetic material. Tunnel microscope operation permits to investigate the magnetic properties at or near the surface of the sample (19) if a spin-polarized beam of light (21) is shed onto the sample (19), either through the transparent body of the tunnel tip (15), from below through the sample (19), or from the side. In addition to conventional scanning tunneling microscope electronics (20), an oscillator-controlled (24) phase-sensitive detector or gating means (26) and a display unit (27) are provided for direct viewing of the magnetic properties and the topography of the sample (19).

    摘要翻译: 在该扫描隧道显微镜的优选实施例中,隧道尖端(15)由涂覆有诸如GaAs层的半导体层的光学透明体构成。 正在研究的样品(19)由磁性材料构成。 隧道显微镜操作允许调查样品(19)表面处或附近的磁特性,如果自旋偏振光束(21)通过隧道末端的透明体(21)流到样品(19)上 15),从下方通过样品(19),或从侧面。 除了传统的扫描隧道显微镜电子器件(20)之外,提供了振荡器控制的(24)相敏检测器或门控装置(26)和显示单元(27),用于直接观察磁特性和 样品(19)。

    Waveguide for an optical near-field microscope
    10.
    发明公开
    Waveguide for an optical near-field microscope 失效
    波导的光学近场显微镜。

    公开(公告)号:EP0185782A1

    公开(公告)日:1986-07-02

    申请号:EP84115848.8

    申请日:1984-12-28

    IPC分类号: G02B21/00

    摘要: The waveguide comprises a transparent body (13) having a very sharp point at one end and being coated with a first opaque layer (14) such as metal. Said opaque layer (14) carries a layer (15) of an optically transparent material which, in turn, is covered by a second opaque layer (16). The apex of the point is removed so as to expose said transparent body (13) in a first aperture (18) and to expose said transparent layer (15) in a second aperture 17, said first aperture occupying an area below 0,01µm 2 .
    Light entering the transparent body (13) from its remote end is shone onto an object (4), the reflected light enters said second aperture (17) and is guided to a light detector (19) for further processing.