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1. 发明申请

WO2011064785A1 POLARIZATION INTERFEROMETER 审中-公开
标题翻译：偏振干涉仪
公开(公告)号：WO2011064785A1
公开(公告)日：2011-06-03
申请号：PCT/IL2010/001002
申请日：2010-11-30
申请人： YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM, LTD. , LEVY, Uriel , LERMAN, Gilad
发明人： LEVY, Uriel , LERMAN, Gilad
IPC分类号： G01B9/02
CPC分类号： G01B9/02028 , G01B9/02004 , G01B2290/70
摘要： An interferometer is presented. The interferometer comprises an optical assembly for directing an input optical field, a space-variant polarization converter, and an analyzer. The optical assembly is configured and operable to produce first and second spatially separated optical fields of incident coherent radiation of substantially the same intensity and different polarizations and to define first and second spatially separated optical paths for propagation of said first and second optical fields thereby allowing interaction between the first optical field and an element affecting a phase thereof in said first optical path, said optical assembly comprising a beam splitter/combiner for combining said first and second optical paths into a combined path at a location downstream of said element with respect to the optical fields' propagation through the interferometer. The space-variant polarization converter is accommodated in said combined path and being configured and operable to simultaneously apply space-variant polarization conversion to two beams corresponding to combined first and second optical fields having different polarizations and produce radially and azimuthally polarized beams respectively. The analyzer is located downstream of said polarization converter. Interaction of the radially and azimuthally polarized beams at the analyzer creates interference fringes corresponding to a spatially varying intensity pattern distribution indicative of a two-dimensional varying phase difference between the first and second optical fields propagating along the first and second optical paths indicative of interaction of said first optical field with said element.
摘要翻译：介绍了干涉仪。干涉仪包括用于引导输入光场的光学组件，空间变异偏振转换器和分析器。光学组件被配置和可操作以产生具有基本上相同强度和不同极化的入射相干辐射的第一和第二空间上分离的光场，并且限定用于所述第一和第二光场的传播的第一和第二空间分离的光路，从而允许相互作用在所述第一光场和影响所述第一光路中的相位的元件之间，所述光学组件包括分束器/组合器，用于将所述第一和第二光路组合成在所述元件下游相对于光场传播通过干涉仪。空间变异偏振转换器被容纳在所述组合路径中并且被配置和可操作以同时将空间变异偏振转换应用于对应于具有不同偏振的组合的第一和第二光场的两个光束，并分别产生径向和方位偏振光束。分析仪位于所述偏振转换器的下游。在分析仪处的径向和方位偏振光束的相互作用产生对应于空间变化的强度图案分布的干涉条纹，其指示沿着第一和第二光路传播的第一和第二光学场之间的二维变化相位差，所述第一光场与所述元件。

2. 发明申请

WO2022234588A1 SYSTEMS AND METHODS TO ACQUIRE THREE DIMENSIONAL IMAGES USING SPECTRAL INFORMATION 审中-公开
公开(公告)号：WO2022234588A1
公开(公告)日：2022-11-10
申请号：PCT/IL2022/050719
申请日：2022-07-05
申请人： YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.
发明人： LEVY, Uriel , EDREI, Eitan
IPC分类号： G01B11/24 , A61B5/00 , G02B21/00
摘要： The disclosure relates to the technique, including systems and methods, for use in optical topographical and/or tomographic 3D imaging of a sample. The system may include (a) a lens unit, chromatically dispersive so that its focal length varies depending on a light wavelength, the lens unit being configured to pass therethrough polychromatic light arriving from and originated at a sample, while selectively collimating those spectral components of the polychromatic light which are in focus based on their wavelengths and origins; and (b) an etalon structure accommodated in an optical path of light being output from the lens unit to receive the collimated light, said etalon structure being configured to operate with multiple resonant wavelengths and to provide respective spectral transmittance peaks at said resonant wavelengths.

3. 发明申请

WO2015151110A3 SEMICONDUCTOR WAVEGUIDE STRUCTURE 审中-公开
公开(公告)号：WO2015151110A3
公开(公告)日：2015-10-08
申请号：PCT/IL2015/050370
申请日：2015-04-02
申请人： YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.
发明人： LEVY, Uriel , SHAPPIR, Joseph , GOYKHMAN, Ilya , DESIATOV, Boris
IPC分类号： G02F1/01 , G02F1/017 , G02F1/025 , G02F1/225 , G02F1/313 , G02B6/293
摘要： A waveguide device is provided. The device comprises a semiconductor waveguide structure and at least one charge storing structure. Said at least one charge storing structure is configured to apply selected electric field on the semiconductor waveguide structure to thereby vary refractive index within said semiconductor waveguide structure. Wherein the charge storing structure comprises a charge trapping layer configured for storing charge carriers configured for selectively generating constant electric field of a predetermined magnitude. The device may be used in optical resonators, interferometer for optical and optoelectronic applications, capable of desirably varying refractive index within the waveguide structure.

4. 发明申请

WO2018104938A1 A RADIO-FREQUENCY (RF) SYSTEM AND A METHOD THEREOF 审中-公开
公开(公告)号：WO2018104938A1
公开(公告)日：2018-06-14
申请号：PCT/IL2017/051316
申请日：2017-12-05
申请人： YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.
发明人： LEVY, Uriel , STERN, Liron
IPC分类号： H01S3/23 , G01N21/17
CPC分类号： G01N21/7746 , G01N2021/7776 , G01N2021/7789 , H01S3/1303 , H01S3/1304 , H01S3/1305 , H01S3/2383
摘要： The present invention describes a sensing method and a sensing system and an RF source thereof comprising two frequency locked lasers coupled to two resonance cavities, one being configured as a sensing element being sensitive to environmental perturbations to be measured, and the second being a reference resonator. Each locking scheme relies on the acquisition of a signal proportional to the difference between the laser carrier frequency and the resonator frequency. This error is fed back to the laser's frequency actuator to fully stabilize both the laser and the resonator. The frequency difference between the two resonators is measured by combining the lasers to illuminate a photodetector. The measured signal is converted from the optical domain to the RF domain. The present invention also relates to an RF source.

5. 发明公开

EP2308097A2 SOLAR VOLUMETRIC STRUCTURE 审中-公开
标题翻译： SOLAR体积结构
公开(公告)号：EP2308097A2
公开(公告)日：2011-04-13
申请号：EP09762179.1
申请日：2009-06-14
申请人： Yissum Research Development Company of the Hebrew University of Jerusalem, Ltd. , Shenkar College of Engineering and Design
发明人： SHAPPIR, Joseph , BEN-YOSEF, Nissim , LEVY, Uriel
IPC分类号： H01L31/0236 , H01L31/0352 , H01L27/142
CPC分类号： H01L31/03529 , H01L31/02363 , H01L31/047 , Y02E10/50
摘要： The present invention provides a volumetric solar structure comprising one or more solar cells. The solar structure comprises a semiconductor substrate of a first conductivity type having a patterned surface thereof, the pattern defining an array of spaced-apart grooves of a funnel-like shape, and a second opposite conductivity type material layer positioned on at least a part of the patterned surface of the substrate. The structure thereby defines junction regions, in which charge carriers are generated by incident radiation energy to which the structure is exposed. The junction regions are located at different heights upon the patterned surface of the substrate.

6. 发明公开

EP4334674A1 SYSTEMS AND METHODS TO ACQUIRE THREE DIMENSIONAL IMAGES USING SPECTRAL INFORMATION 审中-实审
公开(公告)号：EP4334674A1
公开(公告)日：2024-03-13
申请号：EP22743600.3
申请日：2022-07-05
申请人： YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD
发明人： LEVY, Uriel , EDREI, Eitan
IPC分类号： G01B11/24 , A61B5/00 , G02B21/00

7. 发明申请

WO2003009008A3 FAST ALL-OPTICAL SWITCHES AND ATTENUATORS 审中-公开
公开(公告)号：WO2003009008A3
公开(公告)日：2003-01-30
申请号：PCT/IL2002/000583
申请日：2002-07-17
申请人： CIVCOM DEVICES & SYSTEMS LTD. , ZALEVSKY, Zeev , KONFORTI, Naim , GOLDENBERG, Efraim , SHABTAY, Gal , COHEN, Nadav , LEVY, Uriel , MIRON, Yehuda
发明人： ZALEVSKY, Zeev , KONFORTI, Naim , GOLDENBERG, Efraim , SHABTAY, Gal , COHEN, Nadav , LEVY, Uriel , MIRON, Yehuda
IPC分类号： H04J14/02
摘要： The present invention is directed to fast all-optical switches and attenuators with at least four channels, including: at least one input channel (1002) and at least one output channel (1004); a plurality of optical junction elements (1008, 1010, 1016, 1018, 1020, 1022) controllable to direct light from any input channel to any of the at least one output channels, wherein each element couples three optical paths, and comprises at least one controllable polarization rotator (1014,1012,1024), the state of which determines whether and how much of the light entering one of the paths exits through at least one of the other paths; and a controller which controls the state of each controllable polarization rotator, wherein the controller is configured to control all of the members of at least one set of two or more of the controllable polarization rotators to be in a same state at a given time.

8. 发明申请

WO2009150654A3 SOLAR CELL WITH FUNNEL-LIKE GROOVE STRUCTURE 审中-公开
公开(公告)号：WO2009150654A3
公开(公告)日：2009-12-17
申请号：PCT/IL2009/000587
申请日：2009-06-14
申请人： YISSUM RESEARCH DEVELOPMENT COMPANY , SHENKAR COLLEGE OF ENGINEERING AND DESIGN , SHAPPIR, Joseph , BEN-YOSEF, Nissim , LEVY, Uriel
发明人： SHAPPIR, Joseph , BEN-YOSEF, Nissim , LEVY, Uriel
IPC分类号： H01L31/0236 , H01L31/0352 , H01L27/142
摘要： The present invention provides a volumetric solar structure comprising one or more solar cells. The solar structure comprises a semiconductor substrate of a first conductivity type having a patterned surface thereof, the pattern defining an array of spaced-apart grooves of a funnel-like shape, and a second opposite conductivity type material layer positioned on at least a part of the patterned surface of the substrate. The structure thereby defines junction regions, in which charge carriers are generated by incident radiation energy to which the structure is exposed. The junction regions are located at different heights upon the patterned surface of the substrate.

9. 发明申请

WO2003009008A2 FAST ALL-OPTICAL SWITCHES AND ATTENUATORS 审中-公开
标题翻译：快速全光开关和衰减器
公开(公告)号：WO2003009008A2
公开(公告)日：2003-01-30
申请号：PCT/IL2002/000583
申请日：2002-07-17
申请人： CIVCOM DEVICES & SYSTEMS LTD. , ZALEVSKY, Zeev , KONFORTI, Naim , GOLDENBERG, Efraim , SHABTAY, Gal , COHEN, Nadav , LEVY, Uriel , MIRON, Yehuda
发明人： ZALEVSKY, Zeev , KONFORTI, Naim , GOLDENBERG, Efraim , SHABTAY, Gal , COHEN, Nadav , LEVY, Uriel , MIRON, Yehuda
IPC分类号： G02B
CPC分类号： G02B6/272 , G02B6/266 , G02F1/31 , H04Q11/0005 , H04Q2011/0035
摘要： An optical router-selector comprising: at least four channels, including at least one input channel and at least one output channel; a plurality of optical junction elements controllable to direct light from any input channel to any of the at least one output channels, wherein each element couples three optical paths, and comprises at least one controllable polarization rotator, the state of which determines whether and how much of light entering one of the paths exits through at least one of the other paths; and a controller which controls the state of each controllable polarization rotator, wherein the controller is configured to control all of the members of at least one set of two or more of the controllable polarization rotators to be in a same state at a given time.
摘要翻译：一种光路由器选择器，包括：至少四个信道，包括至少一个输入信道和至少一个输出信道; 多个光学连接元件，其可控制以将光从任何输入通道引导至至少一个输出通道中的任何一个，其中每个元件耦合三个光学路径，并且包括至少一个可控偏振旋转器，其状态决定是否以及多少进入其中一条路径的光线通过其他路径中的至少一条出口; 以及控制器，其控制每个可控偏振旋转器的状态，其中所述控制器被配置为在给定时间内将所述可控偏振旋转器中的至少一组两个或更多个的所有成员控制在相同的状态。

10. 发明申请

WO2002048772A3 METHOD AND APPARATUS FOR PRODUCING FIBER BRAGG GRATINGS 审中-公开
公开(公告)号：WO2002048772A3
公开(公告)日：2002-06-20
申请号：PCT/IL2001/001149
申请日：2001-12-12
申请人： CIVCOM INC. , MENDLOVIC, David , LEVY, Uriel , SHABTAY, Gal , ZALEVSKY, Zeev
发明人： MENDLOVIC, David , LEVY, Uriel , SHABTAY, Gal , ZALEVSKY, Zeev
IPC分类号： G02B6/16
摘要： A method of fabricating a fiber Bragg grating (FBG) (50), the method comprising: generating changes in phase and/or amplitude of light in a light beam (40) that are functions of two coordinates in a plane on which the beam is incident so as to generate a given optical intensity pattern; and illuminating a segment of optic fiber (22) with the optical intensity pattern to imprint the fiber segment with a spatial variation in its index of refraction that has a pattern (52) responsive to the optical intensity pattern.

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