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公开(公告)号：WO2011104317A1
公开(公告)日：2011-09-01
申请号：PCT/EP2011/052773
申请日：2011-02-24
Applicant: UNIVERSITEIT GENT , IMEC , BAETS, Roeland , VAN THOURHOUT, Dries , ROELKENS, Günther , MORTHIER, Geert , DE KONINCK, Yannick
Inventor： BAETS, Roeland , VAN THOURHOUT, Dries , ROELKENS, Günther , MORTHIER, Geert , DE KONINCK, Yannick
CPC classification number: H01S5/1032 , B82Y20/00 , H01S5/021 , H01S5/0216 , H01S5/0218 , H01S5/1035 , H01S5/1042 , H01S5/1071 , H01S5/1075 , H01S5/3095 , H01S5/3211 , H01S5/34306 , H01S5/4087
Abstract: A hybrid laser (100) is described for generating radiation, the hybrid laser (100) comprising an optical passive material (110) and an optical active material (120). The hybrid laser (100) furthermore comprises a first optical waveguide (112) and optical laser components (114) comprising reflectors in the optical passive material (110). The first optical waveguide (112) is adapted for coupling out radiation from the hybrid laser. The laser also comprises a second optical waveguide (122) defined in the optical active material (120). The optical laser components (114) comprise reflectors defining a cavity and furthermore are adapted for providing laser cavity confinement in the first optical waveguide (112) and the second optical waveguide (122). The second optical waveguide (122) thereby is positioned at least partly over the first optical waveguide (112) so that an evanescent coupling interface is defined between the second optical waveguide (122) and the first optical waveguide (112) and the evanescent coupling interface is positioned within the laser cavity.
Abstract translation: 描述了用于产生辐射的混合激光器（100），所述混合激光器（100）包括光学无源材料（110）和光学活性材料（120）。 混合激光器（100）还包括第一光波导（112）和包括在光学无源材料（110）中的反射器的光学激光器部件（114）。 第一光波导（112）适于耦合来自混合激光器的辐射。 激光器还包括限定在光学活性材料（120）中的第二光波导（122）。 光学激光器部件（114）包括限定空腔的反射器，并且还适于在第一光波导（112）和第二光波导（122）中提供激光腔限制。 因此，第二光波导（122）至少部分地位于第一光波导（112）之上，使得在第二光波导（122）和第一光波导（112）之间以及渐逝耦合接口 位于激光腔内。
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公开(公告)号：WO2021165189A1
公开(公告)日：2021-08-26
申请号：PCT/EP2021/053608
申请日：2021-02-15
Applicant: IMEC VZW , UNIVERSITEIT GENT
Inventor： LI, Yanlu , BAETS, Roeland
Abstract: System (300) for photoacoustic inspection of an object (10). The system comprises: a broadband emission source (305) configured to generate an emission beam (3151,..., 315N); a direction apparatus (320) comprising at least one spectrum splitter (340) configured to split the emission beam into at least a first and a second component (3451,..., 345M), the direction apparatus being configured to sequentially direct the respective components to N respective locations (1511,..., 15N1,...,15M1,..., 15NM) on the object at N times to generate N respective acoustic waves within the object, wherein the N respective locations and N times are such that the respective N acoustic waves at least semi-constructively interfere to generate a respective propagating acoustic wave (201,..., 20M) within the object; and a vibration sensing system (330) configured to detect said respective propagating acoustic waves at a respective detection location (251,..., 25M) on the object. As the propagating acoustic waves have an amplitude that is greater than any one of the plurality of acoustic waves, it is easier to detect by the vibration sensing system thereby improving the SNR.
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公开(公告)号：WO2021099369A1
公开(公告)日：2021-05-27
申请号：PCT/EP2020/082506
申请日：2020-11-18
Applicant: UNIVERSITEIT GENT , IMEC VZW
Inventor： PAVANELLO, Fabio , VAN THOURHOUT, Dries , BAETS, Roeland
Abstract: A temperature compensation method for wavelength monitoring using spectrometers (33) on photonic integrated chips (1) and a related temperature-compensated wavelength monitoring device (51) are disclosed. An optical filter (42a-b) of the chip (1) filters a source (6) signal to provide at least one spectral reference line to a first spectrometer (33) to detect thermal wavelength drifts thereof. At least one spectral line to be monitored is received by the same or another spectrometer (33) of the chip to detect wavelength shifts thereof. To obtain a compensation value accounting for a change in temperature, the detected thermal drift of the reference line is compared to calibrated thermal drifts for the reference line which is associated with a calibrated thermal drift for the spectral response curve of the spectrometer receiving the spectral line to be monitored. A thermal drift rate for the response curve of the optical filter differs from a thermal drift rate for the response curve of the first spectrometer at least by an amount such that, over the entire range of operating temperatures of the photonic integrated chip (1), an effective resolving power associated with the spectrometer (33) receiving the spectral line to be monitored is at least 50% of a nominal resolving power in respect of that same spectrometer (33).
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公开(公告)号：WO2019129798A1
公开(公告)日：2019-07-04
申请号：PCT/EP2018/086899
申请日：2018-12-31
Applicant: UNIVERSITEIT GENT , IMEC VZW
Inventor： BAETS, Roeland , RYCKEBOER, Eva , RAHIM, Abdul , VASILIEV, Anton , NIE, Xiaomin
CPC classification number: G02B6/12007 , G01J3/1895 , G01J3/22 , G01J3/36 , G02B6/124 , G02B6/29326 , G02B6/29328 , G02B6/29398
Abstract: An integrated wavelength-selective filter device (10; 20; 30; 40) comprises a first optical element (14) for directing received radiation into a direction defined by a first angle (α), and a second optical element (15) being a diffractive element configured diffracting said 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 (14a) 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.
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公开(公告)号：WO2015162197A3
公开(公告)日：2015-10-29
申请号：PCT/EP2015/058764
申请日：2015-04-23
Applicant: UNIVERSITEIT GENT , IMEC VZW
Inventor： BAETS, Roeland , DELBEKE, Danaë , ROELKENS, Günther , BOGAERTS, Wim
Abstract: Integrated Spectrometers with Single Pixel Detector An integrated waveguide based spectrometer is described. The spectrometer comprises a sensing region for receiving multi-wavelength radiation for irradiating a sample in the sensing region, a wavelength demultiplexing element arranged for capturing said multi-wavelength radiation after interaction with the sample and for providing a number of wavelength demultiplexed radiation outputs or a number of different groups of wavelength demultiplexed radiation outputs, an integrated modulator for differently modulating the different demultiplexed radiation outputs or different groups of demultiplexed radiation outputs, and a multiplexer element for multiplexing the differently modulated demultiplexed radiation outputs or the differently grouped demultiplexed radiation outputs.
Abstract translation: 具有单像素探测器的集成光谱仪描述了集成的基于波导的光谱仪。 该分光计包括：用于接收多波长辐射以用于照射感测区域中的样本的感测区域;波长解复用元件，被配置用于在与样本相互作用之后捕获所述多波长辐射并且用于提供多个波长解复用的辐射输出或 多个不同组的波长解复用辐射输出，用于不同调制不同解复用辐射输出或不同解复用辐射输出组的集成调制器，以及用于复用不同调制解复用辐射输出或不同分组解调多路复用辐射输出的复用器元件。 / p>
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Patent Agency Ranking
公开(公告)号：WO2021209646A1
公开(公告)日：2021-10-21
申请号：PCT/EP2021/060122
申请日：2021-04-19
Applicant: UNIVERSITEIT GENT , IMEC VZW
Inventor： ZHAO, Haolan , WUYTENS, Pieter , BAETS, Roeland
IPC: G01N21/65 , G01N33/487 , G01N21/77
Abstract: Waveguide with solid micro-extraction phase for Raman spectroscopy A method (900) and device (100, 500) for detecting the presence of an unbound portion of therapeutic agents in a bodily fluid sample. A liquid sample is provided (901) in which the bodily fluid comprises an endogenous component of geometrical size larger than the therapeutic agent. A photonic integrated circuit (100, 500) comprises a porous material enrichment layer (102), a waveguide formed in the enrichment layer, and a blocking means (103) provided on an outer surface of the enrichment layer. The enrichment layer with blocking means is permeable to the unbound therapeutic agent and prevents penetration of the endogenous component into pores of enrichment layer. The blocking means is configured to cooperate with the enrichment layer to maintain therapeutic agent access to the pores of the enrichment layer and prevent light-matter interaction between the at least one endogenous component and light guided in the waveguide, by hindering an adhesion of said endogenous component to a liquid-receiving surface of the enrichment layer with blocking means, when contacting (903) the liquid sample with the photonic integrated circuit.
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公开(公告)号：WO2018178336A1
公开(公告)日：2018-10-04
申请号：PCT/EP2018/058299
申请日：2018-03-30
Applicant: UNIVERSITEIT GENT , IMEC VZW , ZHEJIANG UNIVERSITY
Inventor： BAETS, Roeland , WANG, Zhechao , YANG, Qing , LIU, Xu , LI, Haifeng
IPC: G02B27/22 , G03H1/22 , G02F1/29 , H04N13/32 , H04N13/398 , G02B27/01 , G02F1/1347 , G02B6/293
Abstract: A display system for 3D light field generation is presented. The display system comprises a photonic circuit comprising a plurality of light emitting units, wherein each light emitting unit comprises a light intensity modulator, and the display system also comprises a phased liquid crystal array adapted to control the exiting optical angle of light for emission angle steering. The operations of light intensity modulators and the phased liquid crystal array are synchronized when reconstructing a light field of a virtual 3D object viewed by a user's eye.
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公开(公告)号：WO2015078783A1
公开(公告)日：2015-06-04
申请号：PCT/EP2014/075288
申请日：2014-11-21
Applicant: UNIVERSITEIT GENT , IMEC VZW
Inventor： BAETS, Roeland , RYCKEBOER, Eva
CPC classification number: A61B5/14532 , A61B5/14503 , A61B5/1459 , A61B5/150022 , A61B5/157 , A61B2562/04 , B01L3/5027 , G01N21/03 , G01N21/274 , G01N2201/0662
Abstract: A sensing system (100) and method for sensing a component in a liquid is disclosed. The system (100) comprises a microfluidic channel (101), the microfluidic channel (101) comprising a first end and a second end (102, 103), wherein the microfluidic channel (101) is open at the first end (102) and closed at the second end (103). The system (100) also comprises at least one measurement sensor (104) positioned adjacent the first end (102), the measurement sensor (104) being arranged for detecting a measurement signal and a reference sensor (105) positioned in the microfluidic channel (101) adjacent the second end (103), the reference sensor (105) being arranged for detecting a reference signal of the liquid. The system (100) further is configured for combining the measurement signal and the reference signal so as to filter out background influences.
Abstract translation: 公开了一种用于感测液体中的组分的感测系统（100）和方法。 所述系统（100）包括微流体通道（101），所述微流体通道（101）包括第一端和第二端（102,103），其中所述微流体通道（101）在所述第一端（102）处是开放的，以及 在第二端（103）处封闭。 所述系统（100）还包括邻近所述第一端（102）定位的至少一个测量传感器（104），所述测量传感器（104）被布置用于检测测量信号和位于所述微流体通道（102）中的参考传感器（105） 101），所述参考传感器（105）被布置用于检测所述液体的参考信号。 系统（100）还被配置为组合测量信号和参考信号，以便滤除背景影响。
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公开(公告)号：WO2017032754A1
公开(公告)日：2017-03-02
申请号：PCT/EP2016/069840
申请日：2016-08-22
Applicant: UNIVERSITEIT GENT , IMEC VZW
Inventor： BAETS, Roeland , ROELKENS, Günther , DE GROOTE, Andreas , CARDILE, Paolo , SUBRAMANIAN, Ananth
CPC classification number: H01S5/026 , H01L33/0045 , H01L33/0079 , H01L33/30 , H01L33/58
Abstract: The present invention relates to an on-chip broadband radiation source, and methods for its manufacture. The photonics IC comprises an optical waveguide such as a semiconductor waveguide, a thin III-V material membrane with absorption capability for absorbing an optical pump signal induced in the waveguide. The III-V membrane comprises a LED implemented therein. The photonics IC also comprises a coupling means between the waveguide and the membrane. The device provides a broadband radiation source at a wavelength longer than the wavelength of the transferred radiation. The broadband signal can then be coupled out through the waveguide and used in the chip.
Abstract translation: 本发明涉及片上宽带辐射源及其制造方法。 光子IC包括诸如半导体波导的光波导，具有用于吸收在波导中感应的光泵信号的吸收能力的薄III-V材料膜。 III-V膜包括其中实现的LED。 光子IC还包括在波导和膜之间的耦合装置。 该装置提供的波长比传输的辐射波长长的宽带辐射源。 然后可以通过波导将宽带信号耦合出来并在芯片中使用。
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公开(公告)号：WO2015092064A1
公开(公告)日：2015-06-25
申请号：PCT/EP2014/078938
申请日：2014-12-21
Applicant: UNIVERSITEIT GENT , IMEC
Inventor： BAETS, Roeland , VANDEWIELE, Stijn , DELBEKE, Danaë , VANTHOURHOUT, Dries
CPC classification number: G02B6/3538 , G02B6/3536 , G02B6/3568 , G02B6/3596 , G02B2006/12145
Abstract: A system (100) for selectively adiabatically coupling electromagnetic waves from one waveguide to another waveguide is described. It comprises a first waveguide portion (130) and a second waveguide portion (140) 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 (110) 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.
Abstract translation: 描述了用于选择性地将电磁波从一个波导耦合到另一个波导的系统（100）。 它包括具有基本上不同的表面法线横截面的第一波导部分（130）和第二波导部分（140）。 其部分在耦合区域中相对于彼此定位，使得在第一预定环境条件下，可以发生第一波导部分和第二波导部分之间的电磁波耦合，并且在第二预定环境条件下，基本上不会在 可以发生第一波导部分和第二波导部分。 该系统还包括流体定位装置，用于选择性地定位至少第一流体（110），同时在耦合区域中覆盖所述第一波导部分和所述第二波导部分两者，从而选择性地诱导第一预定环境条件或第二预定环境条件。
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