公开(公告)号：US07324282B2

公开(公告)日：2008-01-29

申请号：US10701324

申请日：2003-11-04

申请人： David Grier ,  Ward Lopes ,  Eric Dufresne

发明人： David Grier ,  Ward Lopes ,  Eric Dufresne

IPC分类号： G02B5/18

CPC分类号： G02B26/0808

摘要： The present invention relates to a system of applying optical gradient forces to form a plurality of optical traps to manipulate small particles. The system includes a light source for generating a focused beam of light which is directed along an optical axis though a phase patterning optical element having a variable optical surface and which has a virtual lens encoded thereon. The optical element produces a plurality of beamlets that are coverged at a position between the optical element and a single transfer lens, and directed through the transfer lens to overlap at the back aperture of a focusing lens. The focusing lens coverges the beamlets to form a plurality of optical traps in the working focal region where particles to be examined, manipulated, or measured, are disposed.

摘要翻译： 本发明涉及一种应用光学梯度力以形成多个光学阱以操纵小颗粒的系统。 该系统包括用于产生聚焦光束的光源，其通过具有可变光学表面的相位图案化光学元件沿着光轴定向并且具有编码在其上的虚拟透镜。 光学元件产生多个子束，其被覆盖在光学元件和单个转印透镜之间的位置处，并且被引导通过转印透镜在聚焦透镜的后孔处重叠。 聚焦透镜覆盖子束以在工作焦点区域中形成多个光学陷阱，其中设置要被检查，操纵或测量的颗粒。

公开(公告)号：US20050176134A1

公开(公告)日：2005-08-11

申请号：US10510529

申请日：2003-04-10

申请人： David Grier ,  Ward Lopes

发明人： David Grier ,  Ward Lopes

IPC分类号： G02B21/32 ,  B01J19/12 ,  G21K1/00 ,  G06F19/00 ,  C12M1/34 ,  G01N33/48 ,  G01N33/50

CPC分类号： G03H1/0005 ,  G03H1/08 ,  G03H1/2294 ,  G03H2001/0077 ,  G03H2225/32

摘要： The present invention relates generally to an apparatus and method to generate and control optical traps (1000, 1002) for manipulation of small particles. An upstream modification of an input laser beam (12, 22) provides a beam with a square or other preselected, cross section of intensity which can be used to form optical traps (1000, 1002) with a corresponding cross section of intensity.

摘要翻译： 本发明一般涉及一种用于产生和控制用于操纵小粒子的光阱（1000,1002）的装置和方法。 输入激光束（12,22）的上游修改为光束提供具有正方形或其它预选的强度横截面，其可用于形成具有对应的强度横截面的光学陷阱（1000,1002）。