公开(公告)号：US4118793A

公开(公告)日：1978-10-03

申请号：US758887

申请日：1977-01-12

申请人： Bernell Edwin Argyle ,  Pieter Dekker ,  John Casimir Slonczewski

发明人： Bernell Edwin Argyle ,  Pieter Dekker ,  John Casimir Slonczewski

IPC分类号： G11C11/14 ,  G11C19/08

CPC分类号： G11C19/0825

摘要： Magnetic bubble domains are propagated in a magnetic medium in a desired direction using in-plane magnetic fields which are time varying but which have no spatial gradients. In applications such as information storage, the need for conventional propagation structures, such as offset conductor loops, patterned magnetic elements, and patterned ion implantation regions is reduced. Bubble domains having unwinding pairs of Bloch lines in their wall magnetization can be moved by applying appropriate in-plane magnetic fields, without the need for spatial gradients or variations in the magnetic field normal to the plane of the magnetic medium. The continuous movement of these bubble domains occurs by a cyclic process where the Bloch lines switch between two configurations, in an asymmetric way in response to the time varying in-plane field.

摘要翻译： 磁场区域在磁性介质中以期望的方向传播，使用时变的但不具有空间梯度的面内磁场。 在诸如信息存储的应用中，减少了诸如偏移导体环路，图案化磁性元件和图案化离子注入区域之类的常规传播结构的需要。 可以通过施加适当的面内磁场来移动具有在其壁磁化中的退绕布洛赫线对的气泡区域，而不需要空间梯度或垂直于磁介质平面的磁场的变化。 这些气泡区域的连续运动通过循环过程发生，其中Bloch线在两个配置之间以不对称的方式在平面场内的时间变化的情况下切换。

公开(公告)号：US4068220A

公开(公告)日：1978-01-10

申请号：US697170

申请日：1976-06-17

申请人： Bernell Edwin Argyle ,  Pieter Dekker ,  John Casimir Slonczewski

发明人： Bernell Edwin Argyle ,  Pieter Dekker ,  John Casimir Slonczewski

IPC分类号： G11C11/14 ,  G11C19/08

CPC分类号： G11C19/0858

摘要： A technique for controllably providing state conversions between bubble domains having a common winding number S is described. In particular, controlled conversions between bubble domains having winding number S=1 is achieved by the application of spatially invariant, homogeneous magnetic fields. For the conversion of .sigma. bubbles (having two vertical Bloch lines) to .chi. bubbles (having no vertical Bloch lines), an in-plane field is not required and only a time varying perpendicular z-field is used. For conversion of a .chi..sub.+ bubble to a .chi..sub.- bubble, and vice versa, a time varying field pulse is applied, there being no requirement for an in-plane magnetic field. However, for the conversion of .chi. bubbles to .sigma. bubbles, an in-plane field is used simultaneously with a time varying z-field. For all controlled conversions, the applied magnetic fields do not have spatial gradients. The magnitudes of the applied magnetic fields and the rise and fall times of the z field are controlled within certain ranges in order to have controlled conversion of one state to another.

摘要翻译： 描述了一种用于可控地提供具有公共绕组数S的气泡区域之间的状态转换的技术。 特别地，具有绕组数S = 1的气泡区域之间的受控转换通过应用空间不变的均匀磁场来实现。 对于将sigma气泡（具有两个垂直布洛赫线）转换成气泡（没有垂直布洛赫线），不需要平面内场，并且仅使用随时间变化的垂直z场。 为了将chi +气泡转换为气泡，反之亦然，应用时变场脉冲，不需要面内磁场。 然而，为了将气泡转化为西格玛气泡，与时变z场同时使用面内场。 对于所有受控转换，施加的磁场不具有空间梯度。 施加的磁场的大小以及z场的上升和下降时间被控制在一定范围内，以便将一个状态的控制转换到另一个状态。

公开(公告)号：US06672739B1

公开(公告)日：2004-01-06

申请号：US09386017

申请日：1999-08-30

申请人： Bernell Edwin Argyle ,  Jeffery Gregory McCord

发明人： Bernell Edwin Argyle ,  Jeffery Gregory McCord

IPC分类号： F21K2706

CPC分类号： G02B27/0994 ,  G02B19/0028 ,  G02B19/0052 ,  G02B19/0095 ,  Y10S385/901 ,  Y10S977/887 ,  Y10S977/951

摘要： An apparatus, system, and method for illuminating a lithographic mask or an object in a microscope is presented, whereby the output of a laser beam homogenizer is imaged on to a field such as the object plane for lithographic application or on to the rear focal plane of an epi illuminating objective lens as a source for wide field illumination at an object plane in a microscope (for application to magnified imaging of weak phase objects)., and the image of the output is dithered with respect to the field

摘要翻译： 提出了一种用于在显微镜中照射光刻掩模或物体的装置，系统和方法，由此将激光束均化器的输出成像到诸如用于光刻应用的物平面的场上或在后焦平面上 作为在显微镜中的物平面处的宽场照明源（用于弱相物体的放大成像）的外延照明物镜的输出的图像相对于场的抖动

公开(公告)号：US06593739B1

公开(公告)日：2003-07-15

申请号：US09876621

申请日：2001-06-07

申请人： Bernell Edwin Argyle ,  Jeffery Gregory McCord

发明人： Bernell Edwin Argyle ,  Jeffery Gregory McCord

IPC分类号： G01R33032

CPC分类号： G01R33/0325

摘要： An optical apparatus and methods for efficiently determining the magnetization of a material at very high optical resolution are disclosed. Individual components of the magnetization may be determined. Components in the plane of the sample surface are imaged by illuminating the material obliquely with substantially parallel light of relatively high power and very well controlled uniformity and polarization, and using light scattered obliquely in a parallel beam in the opposite direction at the same angle as the angle of incidence to record an image. Reversing the illumination and observation directions allows subtraction of the two images and measurement of the magnetization in-plane. A second in-plane component orthogonal to the first, is obtained similarly after reorienting the plane of incidence 90 degrees. The third magnetization component,—perpendicular to the sample surface—, may be obtained using illumination at both angles of incidence and subtracting two images, each recorded when a light-polarization angle of offset from extinction, is reversed. All three components may thereby be imaged without recourse to modulating the sample magnetization as in previous methods. Magnetically ‘hard’ as well as ‘soft’ materials are measurable by these methods.

摘要翻译： 公开了一种用于以非常高的光学分辨率有效地确定材料的磁化的光学装置和方法。 可以确定磁化的各个组分。 通过以基本上平行的相对较高功率和非常好的受控均匀度和极化的光照射材料来成像样品表面的平面中的成分，并且使用在相反方向上以相反方向在相反方向上倾斜散射的光以与 入射角记录图像。 反转照明和观察方向允许减去两个图像和磁化在平面内的测量。 在将入射平面重新定向90度后，类似地获得与第一面正交的第二面内分量。 垂直于样品表面的第三磁化分量可以使用两个入射角的照明并且减去两个图像来获得，每个图像在偏离消光的光偏振角被反转时记录。 因此，如先前的方法那样，所有三个组分可以被成像，而无需求助于调制样品磁化。 磁性“硬”以及“软”材料都可以通过这些方法来测量。