公开(公告)号：US09778400B2

公开(公告)日：2017-10-03

申请号：US15183382

申请日：2016-06-15

Applicant: PURDUE RESEARCH FOUNDATION

Inventor： Justus Chukwunonso Ndukaife ,  Alexandra Boltasseva ,  Agbai A. Nnanna ,  Steven Truitt Wereley ,  Alexander Kildishev ,  Vladimir M. Shalaev

IPC: G01N27/00 ,  G02B5/00

CPC classification number: G02B5/008

Abstract: A system and method suitable for selection, manipulation, and analysis of individual particles within a fluid medium. The system and method involve manipulating the particles by contacting the fluid medium with a plasmonic nanoantenna, illuminating the plasmonic nanoantenna with a source of light such that the plasmonic nanoantenna acts as a nanoscale heat source resulting in localized heating of the fluid medium creating local gradients in the electrical properties of the fluid medium that yield plasmonic trapping sites in the vicinity of the plasmonic nanoantenna, and applying an alternating current electric field in the fluid medium to create electrothermoplasmonic flow around the plasmonic nanoantenna. The electrothermoplasmonic flow transports at least one of the particles towards the plasmonic nanoantenna and the particle is trapped by at least one of the plasmonic trapping sites.

公开(公告)号：US20160334758A1

公开(公告)日：2016-11-17

申请号：US15152535

申请日：2016-05-11

Applicant: Purdue Research Foundation

Inventor： Amr Shaltout ,  Sajid Choudhury ,  Alexander V. Kildishev ,  Alexandra Boltasseva ,  Vladimir M. Shalaev

IPC: G03H1/22 ,  G03H1/02 ,  G03H1/00

CPC classification number: G03H1/02 ,  G02B1/00 ,  G02B1/002 ,  G02F1/00 ,  G02F1/01 ,  G03H1/024 ,  G03H1/0244 ,  G03H2001/026 ,  G03H2001/2263 ,  G03H2240/11 ,  G03H2240/21 ,  H01Q15/0006 ,  H01Q15/10

Abstract: A device for producing a subwavelength hologram. The device comprises a metasurface layer attached to a substrate. The metasurface layer includes an array of plasmonic antennas that simultaneously encode both wavelength and phase information of light directed through the array to produce a hologram. The wavelength is determined by the size of the antennas, and the phase is determined by the orientation of the antennas.

Abstract translation: 用于产生亚波长全息图的装置。 该装置包括连接到基底的表面层。 表面层包括等离子体激元天线阵列，其同时对通过阵列指向的光的波长和相位信息进行编码以产生全息图。 波长由天线尺寸确定，相位取决于天线的方向。