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    SPECTRAL AND PHASE MODULATION TUNABLE BIREFRINGENCE DEVICES
    2.
    发明申请
    SPECTRAL AND PHASE MODULATION TUNABLE BIREFRINGENCE DEVICES 有权

    公开(公告)号：US20210240019A1

    公开(公告)日：2021-08-05

    申请号：US17234341

    申请日：2021-04-19

    申请人： Ibrahim ABDULHALIM

    发明人： Ibrahim ABDULHALIM

    IPC分类号： G02F1/137 ,  E06B3/67 ,  E06B9/24 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/1343

    摘要： 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
    3.
    发明申请
    Optical Sensor with Enhanced Sensitivity 有权
    具有增强灵敏度的光学传感器

    公开(公告)号：US20130323858A1

    公开(公告)日：2013-12-05

    申请号：US13985509

    申请日：2012-02-14

    申请人： Ibrahim Abdulhalim

    发明人： Ibrahim Abdulhalim

    IPC分类号： G01N21/65

    CPC分类号： G01N21/658 ,  G01N21/554 ,  G01N33/54373

    摘要： 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.

    摘要翻译： 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方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。

    Spectral and phase modulation tunable birefringence devices
    8.
    发明授权
    Spectral and phase modulation tunable birefringence devices 有权

    公开(公告)号：US11567381B2

    公开(公告)日：2023-01-31

    申请号：US17234341

    申请日：2021-04-19

    申请人： Ibrahim Abdulhalim

    发明人： Ibrahim Abdulhalim

    IPC分类号： G02F1/137 ,  E06B9/24 ,  G02F1/13 ,  E06B3/67 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/1343

    摘要： 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.

    High resolution extended depth of field optical coherence tomography
    9.
    发明授权
    High resolution extended depth of field optical coherence tomography 有权
    高分辨率扩展景深光学相干断层扫描

    公开(公告)号：US08860948B2

    公开(公告)日：2014-10-14

    申请号：US13012563

    申请日：2011-01-24

    申请人： Ibrahim Abdulhalim ,  Zeev Zalevsky

    发明人： Ibrahim Abdulhalim ,  Zeev Zalevsky

    IPC分类号： G01B11/02 ,  G01B9/02 ,  A61B5/00

    CPC分类号： G01B9/02056 ,  A61B5/0066 ,  G01B9/02005 ,  G01B9/02091

    摘要： An optical coherence tomography (OCT) imager comprising: a low coherence light source that provides light; a photosensor for imaging light; optics that directs a first portion of the light along a first optical path so that it is imaged on the photosensor and a second portion of the light along a second optical path so that it is reflected by material in the target to the photosensor where it is imaged to interfere with light from the first portion to form an interference pattern; and a mask through which light from at least one of the first and second portions of light passes that generates a relative phase perturbation between portions of light that passes through it.

    摘要翻译： 一种光学相干断层摄影（OCT）成像器，包括：提供光的低相干光源; 用于成像光的光电传感器; 将光的第一部分沿着第一光路引导的光学器件，使得其沿着第二光路被成像在光传感器和光的第二部分上，使得其被物体中的材料反射到光传感器，在那里它是 成像以干扰来自第一部分的光以形成干涉图案; 以及掩模，来自第一和第二部分光中的至少一个的光通过该掩模，其在穿过该光的部分光之间产生相对相位扰动。