公开(公告)号：US06416190B1

公开(公告)日：2002-07-09

申请号：US09845045

申请日：2001-04-27

申请人： David G. Grier ,  Eric R. Dufresne

发明人： David G. Grier ,  Eric R. Dufresne

IPC分类号： G02B2700

CPC分类号： G02B21/32 ,  G02B27/1086 ,  G02B27/42 ,  G02B27/4244 ,  G02B27/425

摘要： A method and apparatus for control of optical trap arrays and formation of particle arrays using light that is in the visible portion of the spectrum. The method and apparatus provides a laser and a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle arrays and also the ability to manipulate singular objects using a plurality of optical traps. By avoiding wavelengths associated with strong absorption in the underlying material, creating optical traps with a continuous-wave laser, optimizing the efficiency of individual traps, and trapping extended samples at multiple points, the rate of deleterious nonlinear optical processes can be minimized.

公开(公告)号：US09519129B2

公开(公告)日：2016-12-13

申请号：US13883260

申请日：2011-11-04

申请人： Fook Chiong Cheong ,  Ke Xiao ,  David Pine ,  David G. Grier

发明人： Fook Chiong Cheong ,  Ke Xiao ,  David Pine ,  David G. Grier

IPC分类号： G02B21/36 ,  G01N15/08 ,  G01N15/14 ,  G01N21/45 ,  G01N21/41 ,  G01N21/47

CPC分类号： G01N15/088 ,  G01N15/08 ,  G01N15/1463 ,  G01N21/4133 ,  G01N21/453 ,  G01N21/47 ,  G01N2015/0846 ,  G02B21/367

摘要： A method for analyzing porosity of a particle and a medium disposed in the porosity of the particle. A video-holographic microscope is provided to analyze interference patterns produced by providing a laser source to output a collimated beam, scattering the collimated beam off a particle and interacting with an unscattered beam to generate the interference pattern for analyzation to determine the refractive index of the particle and a medium disposed in the porosity of the particle to measure porosity and the medium.

摘要翻译： 用于分析颗粒的孔隙率的方法和设置在颗粒的孔隙中的介质。 提供视频全息显微镜以分析通过提供激光源来输出准直光束产生的干涉图案，将准直光束从粒子散射并与未散射光束相互作用以产生用于分析的干涉图案，以确定折射率 颗粒和设置在颗粒孔隙中的介质以测量孔隙度和介质。

公开(公告)号：US09316578B2

公开(公告)日：2016-04-19

申请号：US13254403

申请日：2010-01-14

申请人： David G. Grier ,  Fook Chiong Cheong ,  Ke Xiao

发明人： David G. Grier ,  Fook Chiong Cheong ,  Ke Xiao

IPC分类号： G01N21/00 ,  G01N15/14 ,  G01N15/00

CPC分类号： G01N15/1475 ,  G01N15/1429 ,  G01N15/1434 ,  G01N15/1459 ,  G01N15/1484 ,  G01N2015/003 ,  G01N2015/0065 ,  G01N2015/1445 ,  G01N2015/1454 ,  G01N2015/1493 ,  G01N2015/1497 ,  G02B21/0056 ,  G02B21/0068 ,  G02B21/008 ,  G03H1/0005 ,  G03H2001/005

摘要： An in-line holographic microscope can be used to analyze on a frame-by-frame basis a video stream to track individual colloidal particles' three-dimensional motions. The system and method can provide real time nanometer resolution, and simultaneously measure particle sizes and refractive indexes. Through a combination of applying a combination of Lorenz-Mie analysis with selected hardware and software methods, this analysis can be carried out in near real time. An efficient particle identification methodology automates initial position estimation with sufficient accuracy to enable unattended holographic tracking and characterization.

摘要翻译： 可以使用在线全息显微镜逐帧分析视频流来跟踪各个胶体颗粒的三维运动。 该系统和方法可以提供实时的纳米分辨率，同时测量粒径和折射率。 通过结合使用Lorenz-Mie分析与选定的硬件和软件方法的组合，该分析可以近乎实时地进行。 有效的粒子识别方法以足够的精度自动进行初始位置估计，以实现无人值守的全息跟踪和表征。

公开(公告)号：US08431884B2

公开(公告)日：2013-04-30

申请号：US12928178

申请日：2010-12-06

申请人： David G. Grier

发明人： David G. Grier

IPC分类号： H01S3/10

CPC分类号： G02B21/32 ,  G02B5/001 ,  G02B5/32 ,  G03H1/08 ,  G03H1/2294 ,  G03H2001/0077

摘要： A method and system for micromanipulation of objects of any shape. The method and system creates various forms of holographic optical traps for a variety of commercial purposes. Some alternate forms of traps include a dark form of optical traps, optical vortices with different helical winding numbers and optical traps with variable phase profiles imprinted thereon.

摘要翻译： 用于显微操作任何形状的物体的方法和系统。 该方法和系统为各种商业目的创建各种形式的全息光学阱。 陷阱的一些替代形式包括暗形式的光学陷阱，具有不同螺旋线圈数的光学旋涡和其上印刷有可变相位轮廓的光学陷阱。

公开(公告)号：US08331019B2

公开(公告)日：2012-12-11

申请号：US12759839

申请日：2010-04-14

申请人： Fook Chiong Cheong ,  David G. Grier ,  Sang-Hyuk Lee

发明人： Fook Chiong Cheong ,  David G. Grier ,  Sang-Hyuk Lee

IPC分类号： G02B21/00

CPC分类号： G01B9/021 ,  G02B21/0088 ,  G02B21/32 ,  G03H1/0005 ,  G03H1/0443 ,  G03H1/0866 ,  G03H1/2294 ,  G03H2001/0033 ,  G03H2001/0077 ,  G03H2001/0447

摘要： A method and system for performing three-dimensional holographic microscopy of an optically trapped one dimensional structure. The method and system use an inverted optical microscope, a laser source which generates a trapping laser beam wherein the laser beam is focused by an objective lens into a plurality of optical traps. The method and system also use a collimated laser at an imaging wavelength to illuminate the structure created by the optical traps. Imaging light scattered by the optically tapped structure forms normalized intensity holograms that are imaged by a video camera and analyzed by optical formalisms to determine light field to reconstruct 3-D images for analysis and evaluation.

摘要翻译： 用于执行光学捕获的一维结构的三维全息显微镜的方法和系统。 该方法和系统使用倒置的光学显微镜，产生捕获激光束的激光源，其中激光束被物镜聚焦成多个光阱。 该方法和系统还使用成像波长处的准直激光来照亮由光阱产生的结构。 通过光学抽头结构散射的成像光形成归一化的强度全息图，其由摄像机成像并通过光学形式进行分析，以确定光场以重建用于分析和评估的3-D图像。

公开(公告)号：US20120223219A1

公开(公告)日：2012-09-06

申请号：US13411142

申请日：2012-03-02

申请人： David G. Grier ,  Elisabeth R. Shanblatt

发明人： David G. Grier ,  Elisabeth R. Shanblatt

IPC分类号： H05H3/00 ,  G02B5/32

CPC分类号： G03H1/0005 ,  G02B5/32 ,  G03H1/0808 ,  G03H1/2294 ,  G03H2001/0077 ,  G03H2001/2255 ,  G03H2210/11 ,  G03H2210/12

摘要： The present invention is directed toward a system and method for projecting holographic optical traps whose intensity maxima are extended along specified paths in three dimensions with specified amplitude and phase profiles along those paths. Specifying paths that constitute knotted loops and phase profiles that direct radiation pressure along the knotted paths yields optical traps that exert knotted force fields. Knotted optical force fields have uses for inducing motion along knotted paths, with applications including the generation of knotted electric current loops in plasmas.

摘要翻译： 本发明涉及一种用于投影全息光学陷阱的系统和方法，其全息光学陷阱的强度最大值沿着沿着这些路径的指定幅度和相位分布的三维沿着特定路径延伸。 指定构成打结环路和相位剖面的路径，其沿着打结路径引导辐射压力产生施加打结力场的光学陷阱。 打结的光学力场用于沿着打结的路径诱导运动，其应用包括在等离子体中产生打结的电流回路。

公开(公告)号：US08059321B2

公开(公告)日：2011-11-15

申请号：US12840062

申请日：2010-07-20

申请人： Yohai Roichman ,  Ilias Cholis ,  David G. Grier

发明人： Yohai Roichman ,  Ilias Cholis ,  David G. Grier

IPC分类号： G02B5/32 ,  H01S1/00 ,  H01S3/00 ,  H05H3/02

CPC分类号： G03H1/2294 ,  G03H1/0005 ,  G03H1/2249 ,  G03H2001/0077 ,  G03H2001/221 ,  G03H2210/30 ,  G03H2225/32

摘要： A method and system for manipulating object using a three dimensional optical trap configuration. By use of selected hologram on optical strap can be configured as a preselected three dimensional configuration for a variety of complex uses. The system can include various optical train components, such as partially transmissive mirrors and Keplerian telescope components to provide advantageously three dimensional optical traps.

摘要翻译： 一种使用三维光阱配置来操纵物体的方法和系统。 通过在光学带上使用所选择的全息图可以配置为用于各种复杂用途的预选的三维配置。 该系统可以包括各种光学组件，例如部分透射镜和开普勒望远镜组件，以有利地提供三维光阱。

公开(公告)号：US20110251072A1

公开(公告)日：2011-10-13

申请号：US13163460

申请日：2011-06-17

申请人： David G. Grier ,  Yael Roichman ,  Weining Man ,  Paul Michael Chaikin ,  Paul Joseph Steinhardt

发明人： David G. Grier ,  Yael Roichman ,  Weining Man ,  Paul Michael Chaikin ,  Paul Joseph Steinhardt

IPC分类号： H01L39/24 ,  B29D99/00 ,  B29C67/02 ,  B29D11/00

CPC分类号： B82Y20/00 ,  G02B6/1225

摘要： A method and system for assembling a quasicrystalline heterostructure. A plurality of particles is provided with desirable predetermined character. The particles are suspended in a medium, and holographic optical traps are used to position the particles in a way to achieve an arrangement which provides a desired property.

摘要翻译： 一种用于组装准晶体异质结构的方法和系统。 多个颗粒具有期望的预定特性。 将颗粒悬浮在介质中，并且全息光学陷阱用于以实现提供所需性质的布置的方式来定位颗粒。

公开(公告)号：US07978978B2

公开(公告)日：2011-07-12

申请号：US12759481

申请日：2010-04-13

申请人： David G. Grier

发明人： David G. Grier

IPC分类号： H04B10/00 ,  H04B10/04 ,  H04J14/02

CPC分类号： H04B10/501 ,  H04B10/70

摘要： Systems and methods for encoding information in the topology of superpositions of helical modes of light, and retrieving information from each of the superposed modes individually or in parallel. These methods can be applied to beams of light that already carry information through other channels, such as amplitude modulation or wavelength dispersive multiplexing, enabling such beams to be multiplexed and subsequently demultiplexed. The systems and methods of the present invention increase the number of data channels carried by a factor of the number of superposed helical modes.

摘要翻译： 用于在螺旋模式的叠加的拓扑中对信息进行编码的系统和方法，以及单独地或并行地从每个叠加模式中检索信息。 这些方法可以应用于已经通过诸如幅度调制或波长色散复用的其它信道携带信息的光束，使得能够对这样的光束进行多路复用并随后解复用。 本发明的系统和方法通过叠加螺旋模式的数量的因数来增加承载的数据信道的数量。

公开(公告)号：US07847238B2

公开(公告)日：2010-12-07

申请号：US11936033

申请日：2007-11-06

申请人： David G. Grier

发明人： David G. Grier

IPC分类号： G02B21/06

CPC分类号： G02B21/32 ,  G02B5/001 ,  G02B5/32 ,  G03H1/08 ,  G03H1/2294 ,  G03H2001/0077

摘要： A method and system for micromanipulation of objects of any shape. The method and system creates various forms of holographic optical traps for a variety of commercial purposes. Some alternate forms of traps include a dark form of optical traps, optical vortices with different helical winding numbers and optical traps with variable phase profiles imprinted thereon.

摘要翻译： 用于显微操作任何形状的物体的方法和系统。 该方法和系统为各种商业目的创建各种形式的全息光学阱。 陷阱的一些替代形式包括暗形式的光学陷阱，具有不同螺旋线圈数的光学旋涡和其上印刷有可变相位轮廓的光学陷阱。