POLARISATION MICROSCOPE
    63.
    发明申请

    公开(公告)号:US20180246307A1

    公开(公告)日:2018-08-30

    申请号:US15758546

    申请日:2016-09-07

    Abstract: A super-resolution scanning confocal polarisation contrast microscope is provided. The microscope has a laser light source (1), sample stage (10) for mounting a sample 6 and detector (8). A polarisation controller (3) is used to set the polarisation state of the light beam to any one of a defined set of different polarisation states. A spatial light modulator (5) modulates the light beam in amplitude and/or phase to focus a sub-diffraction-limit central spot on the sample together with unwanted sidebands. A scanning confocal scheme is used with a pin hole 9 in front of the detector (8) so that only that portion of the light is detected which has comes from the central spot, while rejecting light that has been scattered by the sample from the sidebands. Polarisation contrast images with sub-diffraction limit resolution can thus be acquired.

    IMAGING THROUGH SCATTERING MEDIA WITH HIGH SIGNAL TO NOISE RATIO AND RESOLUTION
    66.
    发明申请
    IMAGING THROUGH SCATTERING MEDIA WITH HIGH SIGNAL TO NOISE RATIO AND RESOLUTION 审中-公开
    通过具有高信号噪声比和分辨率的散射介质成像

    公开(公告)号:US20160356746A1

    公开(公告)日:2016-12-08

    申请号:US14913958

    申请日:2014-08-26

    Abstract: Systems and methods are disclosed to enhance three-dimensional photoacoustic imaging behind, through, or inside a scattering material. Embodiments of the invention can increase the optical fluence in an ultrasound transducer focus and/or enhance the optical intensity using wavefront shaping before the scatterer. The photoacoustic signal induced by an object placed behind the scattering medium can serve as feedback to optimize the wavefront, enabling one order of magnitude enhancement of the photoacoustic amplitude. Using the enhanced optical intensity, the object can be scanned in two dimensions and/or a spot can be scanned by re-optimizing the wavefront before post-processing of the data to reconstruct the image. The temporal photoacoustic signal provides information to reconstruct the third-dimensional information.

    Abstract translation: 公开了系统和方法来增强散射材料后面,通过或内部的三维光声成像。 本发明的实施例可以在散射体之前使用波前整形来增加超声波换能器焦点中的光能密度和/或增强光强度。 由放置在散射介质后面的物体引起的光声信号可以用作反馈以优化波前,使光声振幅能够提高一个数量级。 使用增强的光强度,可以在二维扫描物体和/或可以在对数据进行后处理以重构图像之前重新优化波阵面来扫描点。 时间光声信号提供重建第三维信息的信息。

    Rapid adaptive optical microscopy over large multicellular volumes
    67.
    发明授权
    Rapid adaptive optical microscopy over large multicellular volumes 有权
    快速自适应光学显微镜在大多细胞体积

    公开(公告)号:US09500846B2

    公开(公告)日:2016-11-22

    申请号:US14660906

    申请日:2015-03-17

    Abstract: Excitation light is focused to a focus within a sample and the focus is scanned within a volume in the sample with scanning optical elements. Signal light emitted from the focus is de-scanned, with the one or more scanning optical elements, onto a wavefront sensor as the focus is scanned within the volume. Based on the descanned signal light, an average aberration created by the volume of the sample of a wavefront of the excitation light is determined. A wavefront of the excitation light is corrected by an amount according to the determined average aberration while the focus is scanned within the volume, the signal light is imaged onto a photosensitive detector as the focus is scanned within the volume, and a wavefront of the imaged signal light is corrected by an amount according to the determined average aberration while the focus is scanned. These steps can be repeated for a plurality of different volumes in the sample, and an image of the sample can be generated based on the detected signal light from scanned foci within the different volumes.

    Abstract translation: 激发光聚焦到样品中的焦点,并用扫描光学元件在样品中的体积内扫描焦点。 当聚焦在体积内被扫描时,从焦点发出的信号光与一个或多个扫描光学元件一起被扫描到波前传感器上。 基于下拉信号光,确定由激发光的波前的样本的体积产生的平均像差。 当在体积内扫描焦点时,根据确定的平均像差校正激发光的波前,当体积内的焦点被扫描时,将信号光成像到光敏检测器上,并且成像的波前 当扫描焦点时,根据确定的平均像差校正信号光的量。 可以对样本中的多个不同体积重复这些步骤,并且可以基于来自不同体积内的扫描焦点的检测到的信号光来生成样本的图像。

    Systems and methods for selective detection and imaging in coherent Raman microscopy by spectral excitation shaping
    68.
    发明授权
    Systems and methods for selective detection and imaging in coherent Raman microscopy by spectral excitation shaping 有权
    通过光谱激发成形在相干拉曼显微镜中进行选择性检测和成像的系统和方法

    公开(公告)号:US09285575B2

    公开(公告)日:2016-03-15

    申请号:US12690579

    申请日:2010-01-20

    Abstract: A microscopy imaging system is disclosed that includes a light source system, a spectral shaper, a modulator system, an optics system, an optical detector and a processor. The light source system is for providing a first train of pulses and a second train of pulses. The spectral shaper is for spectrally modifying an optical property of at least some frequency components of the broadband range of frequency components such that the broadband range of frequency components is shaped producing a shaped first train of pulses to specifically probe a spectral feature of interest from a sample, and to reduce information from features that are not of interest from the sample. The modulator system is for modulating a property of at least one of the shaped first train of pulses and the second train of pulses at a modulation frequency. The optical detector is for detecting an integrated intensity of substantially all optical frequency components of a train of pulses of interest transmitted or reflected through the common focal volume. The processor is for detecting a modulation at the modulation frequency of the integrated intensity of substantially all of the optical frequency components of the train of pulses of interest due to the non-linear interaction of the shaped first train of pulses with the second train of pulses as modulated in the common focal volume, and for providing an output signal for a pixel of an image for the microscopy imaging system.

    Abstract translation: 公开了一种显微镜成像系统,其包括光源系统,光谱整形器,调制器系统,光学系统,光学检测器和处理器。 光源系统用于提供第一脉冲串和第二脉冲串。 频谱整形器用于频谱修改频率分量的宽带范围的至少一些频率分量的光学特性,使得频率分量的宽带范围成形,产生成形的第一脉冲串,从而特别地探测来自 样本,并从样本中不感兴趣的特征中减少信息。 调制器系统用于以调制频率调制成形的第一脉冲序列和第二脉冲串中的至少一个的性质。 光学检测器用于检测通过公共焦点体积传输或反射的感兴趣的脉冲串的基本上所有的光学频率分量的积分强度。 处理器用于检测由于成形的第一脉冲序列与第二脉冲串的非线性相互作用而导致的感兴趣的脉冲串的基本上所有的光学频率分量的积分强度的调制频率的调制 在公共焦点体积中调制,并且为显微镜成像系统提供用于图像的像素的输出信号。

    PHOTO-STIMULATOR AND MICROSCOPE SYSTEM
    69.
    发明申请
    PHOTO-STIMULATOR AND MICROSCOPE SYSTEM 有权
    照相机和显微镜系统

    公开(公告)号:US20150177502A1

    公开(公告)日:2015-06-25

    申请号:US14580133

    申请日:2014-12-22

    Abstract: To avoid unstable light radiation during switching of a phase modulation amount and stimulate desired stimulation points simultaneously, provided is a photo-stimulator which includes an AOM switching on/off of radiation of stimulation light to a specimen S; an LCOS-SLM being capable of modulating a phase of stimulation light once radiation to the specimen S has been turned on by the AOM; and a controller controlling the LCOS-SLM to switch a phase modulation amount of stimulation light and controlling the AOM to switch on/off of radiation of stimulation light, wherein the controller causes the AOM to turn off radiation of stimulation light before the LCOS-SLM starts switching a phase modulation amount, and causes the AOM to turn on radiation of stimulation light after the LCOS-SLM completes switching a phase modulation amount.

    Abstract translation: 为了在切换相位调制量期间避免不稳定的光辐射并且同时刺激所需的刺激点,提供了一种光刺激器,其包括AOM将刺激光的辐射切换到样本S; 能够通过AOM打开辐射至样本S的能够调制刺激光的相位的LCOS-SLM; 以及控制器,控制LCOS-SLM以切换刺激光的相位调制量并控制AOM以打开/关闭刺激光的辐射,其中控制器使AOM在LCOS-SLM之前关闭刺激光的辐射 开始切换相位调制量,并且在LCOS-SLM完成切换相位调制量之后使得AOM打开刺激光的辐射。

    MEMS microdisplay optical imaging and sensor systems for underwater and other scattering environments
    70.
    发明授权
    MEMS microdisplay optical imaging and sensor systems for underwater and other scattering environments 有权
    用于水下和其他散射环境的MEMS微显示器光学成像和传感器系统

    公开(公告)号:US09019503B2

    公开(公告)日:2015-04-28

    申请号:US14021822

    申请日:2013-09-09

    Abstract: A sensing system is provided that includes a transmitter assembly with a light source and a microdisplay device, wherein the transmitter assembly defines an optical beam transmission path to provide illumination of a substantially one-dimensional (1D) region of a target area, the microdisplay device comprising a plurality of controllable elements for causing the illumination to be a substantially 1D pattern of light along the 1D region. The system further includes a receiver assembly for defining a return optical signal transmission path from the 1D region and collecting return optical signals from the 1D region. The system also includes a processing component for generating sensor information associated with the 1D region by processing the return optical signals from the 1D region with return optical signals from adjacent 1D regions using a distributed compressive sensing (DCS) technique.

    Abstract translation: 提供了一种感测系统,其包括具有光源和微型显示装置的发射器组件,其中发射器组件限定光束传输路径以提供目标区域的基本上一维(1D)区域的照明,微显示器件 包括多个可控元件,用于使得照明是沿1D区域的大致1D图案的光。 该系统还包括用于从1D区域定义返回光信号传输路径并收集来自1D区域的返回光信号的接收器组件。 该系统还包括用于通过使用分布式压缩感测(DCS)技术处理来自1D区域的返回光信号和来自相邻1D区域的返回光信号来产生与1D区域相关联的传感器信息的处理部件。

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