公开(公告)号：US20140132893A1

公开(公告)日：2014-05-15

申请号：US14128687

申请日：2012-06-28

Applicant: IMEC ,  UNIVERSITEIT GENT

Inventor： Roeland Baets ,  Wout De Cort ,  Jeroen Beeckman ,  Kristiaan Neyts

IPC: C09K19/54 ,  G02B6/00

CPC classification number: C09K19/544 ,  G02B6/00 ,  G02B6/138 ,  G02F1/133788 ,  G02F2202/022 ,  G02F2202/32

Abstract: A method for trimming at least one photonic device, and comprising obtaining one or more photonic devices including at least one component for supporting propagation of electromagnetic radiation and a covering layer comprising a polymerisable liquid crystal. The method further comprises determining, for a selected photonic device selected from the one or more photonic devices, a selected liquid crystal orienting condition to be applied to the polymerisable liquid crystal resulting in a preferred value for an electromagnetic property of the selected photonic device. The method also comprises, while applying the selected liquid crystal orienting condition, polymerizing the polymerisable liquid crystal cladding layer of the selected photonic device, thus obtaining a polymerized liquid crystal on the selected photonic device.

Abstract translation: 一种用于修整至少一个光子器件的方法，并且包括获得包括用于支持电磁辐射的传播的至少一个部件和包含可聚合液晶的覆盖层的一个或多个光子器件。 所述方法还包括：对于从所述一个或多个光子器件中选出的选定光子器件，确定要施加到所述可聚合液晶的选定液晶取向条件，从而导致所选择的光子器件的电磁特性的优选值。 该方法还包括在施加所选择的液晶取向条件的同时聚合所选择的光子器件的可聚合液晶包层，从而在所选择的光子器件上获得聚合的液晶。

公开(公告)号：US11360262B2

公开(公告)日：2022-06-14

申请号：US16958476

申请日：2018-12-31

Applicant: UNIVERSITEIT GENT ,  IMEC VZW

Inventor： Roeland Baets ,  Eva Ryckeboer ,  Abdul Rahim ,  Anton Vasiliev ,  Xiaomin Nie

IPC: G01J3/18 ,  G01J3/22 ,  G02B6/12 ,  G02B6/124 ,  G02B6/293 ,  G01J3/36 ,  G01J3/12

Abstract: An integrated wavelength-selective filter device comprises a first optical element, for directing received radiation into a direction defined by a first angle, and a second optical element being a diffractive element configured for diffracting the directed radiation under a second angle. The second angle is such that for a single reference wavelength the diffracted radiation is directed into a propagation medium for advancing therein towards a predetermined position on the first optical element or on a further optical element for filtering radiation having a wavelength substantially matching the reference wavelength from radiation having a substantially different wavelength. The propagation medium is formed from a material that is different from any material of the substrate of the first and the second optical element.

公开(公告)号：US10684114B2

公开(公告)日：2020-06-16

申请号：US16290041

申请日：2019-03-01

Applicant: IMEC VZW ,  Universiteit Gent

Inventor： YanLu Li ,  Roeland Baets ,  Eva Ryckeboer ,  Jinghao Zhu

IPC: G01B9/02 ,  G01H9/00 ,  G02B27/48 ,  G01N21/47 ,  G01S17/58

Abstract: Described herein is a method and system for mitigating the effects of speckle in a laser Doppler system, and, in particular in a laser Doppler vibrometry/velocimetry system. A scan unit is provided in at least one of: a transmit path for scanning at least one beam from a transmitting antenna over a moving target surface and a receive path for scanning at least one reflected beam received from the moving target surface onto a receiving antenna. An averaging unit is provided prior to post-processing or demodulation to average electrical signals corresponding to the reflected beams. By averaging before demodulation, speckle in the output signal is mitigated.

公开(公告)号：US09874701B2

公开(公告)日：2018-01-23

申请号：US15106428

申请日：2014-12-21

Applicant: UNIVERSITEIT GENT ,  IMEC VZW

Inventor： Roeland Baets ,  Stijn Vandewiele ,  Danaë Delbeke ,  Dries Vanthourhout

IPC: G02B6/10 ,  G02B6/35 ,  G02B6/12

CPC classification number: G02B6/3538 ,  G02B6/3536 ,  G02B6/3568 ,  G02B6/3596 ,  G02B2006/12145

Abstract: A system for selectively adiabatically coupling electromagnetic waves from one waveguide to another waveguide is described. It comprises a first waveguide portion and a second waveguide portion having substantially different surface normal cross-sections. Portions thereof are positioned with respect to each other in a coupling region so that under first predetermined environmental conditions coupling of electromagnetic waves between the first waveguide portion and the second waveguide portion can occur and under second predetermined environmental conditions substantially no coupling of electromagnetic waves between the first waveguide portion and the second waveguide portion can occur. The system also comprises a fluid positioning means for selectively positioning at least a first fluid simultaneously overlaying both said first waveguide portion and said second waveguide portion in the coupling region thus selectively inducing first predetermined environmental conditions or second predetermined environmental conditions.

公开(公告)号：US09488583B2

公开(公告)日：2016-11-08

申请号：US14143805

申请日：2013-12-30

Applicant: UNIVERSITEIT GENT ,  IMEC VZW

Inventor： Roeland Baets ,  Ananth Subramanian ,  Nicolas Le Thomas

IPC: G01J3/44 ,  G01N21/65 ,  G01N21/552

CPC classification number: G01N21/658 ,  G01N21/554 ,  G01N2021/653 ,  G01N2021/655 ,  G01N2201/08

Abstract: In the present invention, a molecular analysis device comprises a substrate, and a waveguide with a planar integrating element and filter or reflector element adjacent thereto is disposed on the substrate. The waveguide comprises a coupling means configured for coupling a predetermined frequency range of laser radiation into the waveguide. At least one metallic nanostructure is disposed on or adjacent to the planar integrating element, at least one metallic nanostructure is configured such that the field intensity and the gradient of the laser radiation, that is coupled into the waveguide, are enhanced over a sufficiently large volume around the nanostructure to simultaneously cause plasmonic based optical trapping of analyte(s) in a medium, and plasmonic based excitation of the particles to produce Raman scattered radiation. A Raman scattered radiation collection means is disposed on the substrate for collecting said Raman scattered radiation produced by the particles.

Abstract translation: 在本发明中，分子分析装置包括衬底，并且具有平面积分元件的波导和与其相邻的过滤器或反射器元件设置在衬底上。 波导包括被配置为将激光辐射的预定频率范围耦合到波导中的耦合装置。 至少一个金属纳米结构设置在平面积分元件上或附近，至少一个金属纳米结构被配置为使得耦合到波导中的激光辐射的场强和梯度在足够大的体积上被增强 围绕纳米结构同时引起介质中分析物的等离子体光学捕获，以及等离子体激发的颗粒以产生拉曼散射辐射。 拉曼散射辐射收集装置设置在基板上用于收集由颗粒产生的所述拉曼散射辐射。