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    POLARIZATION INDEPENDENT BIREFRINGENT TUNABLE FILTERS
    3.
    发明申请
    POLARIZATION INDEPENDENT BIREFRINGENT TUNABLE FILTERS 审中-公开
    极化独立的双向滤波器

    公开(公告)号：WO2008068753A3

    公开(公告)日：2009-09-03

    申请号：PCT/IL2007001497

    申请日：2007-12-04

    Applicant: UNIV BEN GURION ,  ABDULHALIM IBRAHIM

    Inventor： ABDULHALIM IBRAHIM

    IPC: G02B27/28

    CPC classification number: G02B6/29361 ,  B82Y20/00 ,  G02B5/3083 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/2793 ,  G02B6/29302 ,  G02B6/29358 ,  G02B6/29395 ,  G02B6/29397

    Abstract: Novel, polarization-insensitive, birefringent tunable filter arrangements that allow high throughput and which are broadband. The filters are based on a combination of tunable birefringent layers or polarization dependent filters, in combination with one or more of the following components (i) thin film achromatic quarter waveplates based on the form birefringence of dielectric subwavelength grating structures, (ii) nano wire-grid polarizers made of metallic wire grids; (iii) omnidirectional dielectric mirrors, (iv) polarization conversion mirrors, and (v) reflective polarized beam splitters for circularly polarized light. All of these components may be implemented in thin film form on one or more substrates, such that a particularly compact and cost effective filter can be produced. The birefringent layers can be any birefringent or magneto-optic layer but especially liquid crystals. The use of novel polarization conversion disposition of the components of the filter results in a filter having high throughput.

    Abstract translation: 新型的偏振不敏感双折射可调滤波器布置，允许高吞吐量和宽带。 滤波器基于可调谐双折射层或偏振相关滤光器的组合，与以下组件中的一个或多个组合（i）基于介电亚波长光栅结构的双折射的薄膜无彩色四分之一波片，（ii）纳米线 由金属丝网制成的格栅偏光片; （iii）全向电介质反射镜，（iv）偏振转换镜和（v）用于圆偏振光的反射偏振分束器。 所有这些部件可以在一个或多个基板上以薄膜形式实现，使得可以产生特别紧凑且成本有效的过滤器。 双折射层可以是任何双折射或磁光层，但特别是液晶。 使用过滤器的组件的新颖的偏振转换配置产生具有高生产量的过滤器。

    OPTICAL SENSOR WITH ENHANCED SENSITIVITY
    4.
    发明申请
    OPTICAL SENSOR WITH ENHANCED SENSITIVITY 审中-公开
    具有增强灵敏度的光学传感器

    公开(公告)号：WO2012111001A2

    公开(公告)日：2012-08-23

    申请号：PCT/IL2012/000075

    申请日：2012-02-14

    Applicant: BEN-GURION UNIVERSITY OF THE NEGEV RESEARCH & DEVELOPMENT AUTHORITY ,  ABDULHALIM, Ibrahim

    Inventor： ABDULHALIM, Ibrahim

    IPC: G01N21/62 ,  G01N33/53

    CPC classification number: G01N21/658 ,  G01N21/554 ,  G01N33/54373

    Abstract: The invention is a surface plasmon resonance (SPR) sensor to determine the presence and quantity of biological or chemical entities in an analyte. The sensor comprises a metal periodic structure deposited as a thin layer of a noble metal, comprising a one dimensional array of nanoslits or a two dimensional array of nanoholes on a transparent dielectric substrate, a nm- thick layer of transparent dielectric protection layer on top of the metal periodic structure and a functionalization layer, which acts as a binding layer to biological or biochemical entities in an analyte that is in contact with the functionaliztion layer. The sensor of the invention has the following properties: the spaces perforated in the metal are at least partially filled by a material with a refractive index as close as possible to that of the substrate; the thickness of the metal layer is no more than lOOnm; the refractive index, transparency and the thickness of the dielectric protection nanolayer are chosen so that it does not affect the sensor sensitivity; the thickness of the dielectric protection layer is no more than 20nm; and the presence of the material in the spaces perforated in the metal distances the analyte material from the metal-substrate interface, thereby improving the signal to noise ratio for the spectral/angular peak corresponding to the plasmon excited at the metal-substrate interface allowing this spectral/angular peak to be used as a reference relative to which the spectral/angular peaks corresponding to the plasmon excited at the metal- analyte interface is measured.

    Abstract translation: 本发明是一种表面等离子体共振（SPR）传感器，用于确定分析物中生物或化学实体的存在和数量。 传感器包括沉积为贵金属薄层的金属周期性结构，其包括在透明电介质基底上的纳米级的一维阵列或纳米孔的二维阵列，在透明电介质基底上的纳米厚的透明介电保护层 金属周期性结构和官能化层，其作为与功能化层接触的分析物中的生物或生物化学实体的结合层。 本发明的传感器具有以下性质：金属中穿孔的空间至少部分地由折射率尽可能接近于衬底材料的材料填充; 金属层的厚度不超过100nm; 选择介电保护纳米层的折射率，透明度和厚度，使其不影响传感器灵敏度; 介质保护层的厚度不超过20nm; 并且在金属穿孔的空间中的材料的存在将分析物材料与金属 - 衬底界面隔离，从而提高对应于在金属 - 衬底界面处激发的等离子体激元的光谱/角度峰值的信噪比，从而允许 光谱/角度峰值用作参考，相对于在金属 - 分析物界面处激发的等离子体激元对应的光谱/角峰值被测量。

    POLARIZATION INDEPENDENT BIREFRINGENT TUNABLE FILTERS
    5.
    发明申请
    POLARIZATION INDEPENDENT BIREFRINGENT TUNABLE FILTERS 审中-公开
    极化独立的双向滤波器

    公开(公告)号：WO2008068753A2

    公开(公告)日：2008-06-12

    申请号：PCT/IL2007/001497

    申请日：2007-12-04

    Applicant: BEN-GURION UNIVERSITY OF THE NEGEV - RESEARCH AND DEVELOPMENT AUTHORITY ,  ABDULHALIM, Ibrahim

    Inventor： ABDULHALIM, Ibrahim

    IPC: G02B6/00

    CPC classification number: G02B6/29361 ,  B82Y20/00 ,  G02B5/3083 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/2793 ,  G02B6/29302 ,  G02B6/29358 ,  G02B6/29395 ,  G02B6/29397

    Abstract: Novel, polarization-insensitive, birefringent tunable filter arrangements that allow high throughput and which are broadband. The filters are based on a combination of tunable birefringent layers or polarization dependent filters, in combination with one or more of the following components (i) thin film achromatic quarter waveplates based on the form birefringence of dielectric subwavelength grating structures, (ii) nano wire-grid polarizers made of metallic wire grids; (iii) omnidirectional dielectric mirrors, (iv) polarization conversion mirrors, and (v) reflective polarized beam splitters for circularly polarized light. All of these components may be implemented in thin film form on one or more substrates, such that a particularly compact and cost effective filter can be produced. The birefringent layers can be any birefringent or magneto-optic layer but especially liquid crystals. The use of novel polarization conversion disposition of the components of the filter results in a filter having high throughput.

    Abstract translation: 新型的偏振不敏感双折射可调滤波器布置，允许高吞吐量和宽带。 滤波器基于可调谐双折射层或偏振相关滤光器的组合，与以下组件中的一个或多个组合（i）基于介电亚波长光栅结构的双折射的薄膜无彩色四分之一波片，（ii）纳米线 由金属丝网制成的格栅偏光片; （iii）全向电介质反射镜，（iv）偏振转换镜和（v）用于圆偏振光的反射偏振分束器。 所有这些部件可以在一个或多个基板上以薄膜形式实现，使得可以产生特别紧凑且成本有效的过滤器。 双折射层可以是任何双折射或磁光层，但特别是液晶。 使用过滤器的组件的新颖的偏振转换配置产生具有高生产量的过滤器。

    SPECTRAL AND PHASE MODULATION TUNABLE BIREFRINGENCE DEVICES
    9.
    发明申请
    SPECTRAL AND PHASE MODULATION TUNABLE BIREFRINGENCE DEVICES 审中-公开

    公开(公告)号：WO2019043682A1

    公开(公告)日：2019-03-07

    申请号：PCT/IL2018/050756

    申请日：2018-07-11

    Applicant: ABDULHALIM, Ibrahim

    Inventor： ABDULHALIM, Ibrahim

    IPC: C09K19/00 ,  E06B9/24 ,  G02F1/137 ,  G02B5/28 ,  G02B5/30

    CPC classification number: G02B5/3083 ,  C09K19/00 ,  E06B9/24 ,  E06B2009/2464 ,  G02B5/284 ,  G02F1/137 ,  G02F2001/13756 ,  G02F2202/36 ,  G02F2203/01 ,  G02F2203/06

    Abstract: The present invention describes a liquid crystal composite tunable device for fast polarisation-independent modulation of an incident light beam comprising: (a) two supporting and functional panels, at least one of them coated with a transparent conductive electrode layer and with optionally at least one additional layer selected from an alignment layer, antireflective coating layer, thermochromic or electrochromic layer, photoconductive or photosensitive layer, and (b) a composite structure sandwiched between said two panels and made of a liquid crystal and porous microparticles infiltrated with said liquid crystal. The porous microparticles have an average refractive index approximately equals to one of the liquid crystal principal refractive indices, matching that of the liquid crystal at one orientational state (for example, parallel n ∥ ), and exhibiting large mismatch at another orientational state (for example, perpendicular n ⊥ ). This refractive index mismatch between said microparticles and said liquid crystal is tuned by applying an external electric or magnetic field, thermally or optically.

    OPTICAL SENSOR WITH ENHANCED SENSITIVITY
    10.
    发明申请
    OPTICAL SENSOR WITH ENHANCED SENSITIVITY 审中-公开
    具有增强灵敏度的光学传感器

    公开(公告)号：WO2012111001A3

    公开(公告)日：2012-11-01

    申请号：PCT/IL2012000075

    申请日：2012-02-14

    Applicant: UNIV BEN GURION ,  ABDULHALIM IBRAHIM

    Inventor： ABDULHALIM IBRAHIM

    IPC: G01N21/00

    CPC classification number: G01N21/658 ,  G01N21/554 ,  G01N33/54373

    Abstract: The invention is a surface plasmon resonance (SPR) sensor to determine the presence and quantity of biological or chemical entities in an analyte. The sensor comprises a metal periodic structure deposited as a thin layer of a noble metal, comprising a one dimensional array of nanoslits or a two dimensional array of nanoholes on a transparent dielectric substrate, a nm-thick layer of transparent dielectric protection layer on top of the metal periodic structure and a functionalization layer, which acts as a binding layer to biological or biochemical entities in an analyte that is in contact with the functionalization layer. The sensor of the invention has the following properties: the spaces perforated in the metal are at least partially filled by a material with a refractive index as dose as possible to that of the substrate; the thickness of the metal layer is no more than 10Onm.

    Abstract translation: 本发明是一种表面等离子体共振（SPR）传感器，用于确定分析物中生物或化学实体的存在和数量。 传感器包括沉积为贵金属薄层的金属周期性结构，其包括在透明电介质基底上的纳米级的一维阵列或纳米孔的二维阵列，在透明电介质基底顶上的纳米厚的透明介电保护层 金属周期结构和官能化层，其作为与官能化层接触的分析物中的生物或生物化学实体的结合层。 本发明的传感器具有以下性质：金属中穿孔的空间至少部分地由具有尽可能的折射率的材料填充到衬底的材料; 金属层的厚度不大于100nm。

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