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    • 2. 发明申请
    • METHOD OF NONLINEAR HARMONIC HOLOGRAPHY
    • 非线性谐波全息法的方法
    • WO2008127432A2
    • 2008-10-23
    • PCT/US2007/085409
    • 2007-11-21
    • CALIFORNIA INSTITUTE OF TECHNOLOGYPU, YePSALTIS, Demetri
    • PU, YePSALTIS, Demetri
    • G01N21/29C12M3/00
    • G01N21/636B82Y20/00G01N21/453G01N21/658G01N2021/653G02B5/32G03H1/0465G03H2001/0447G03H2210/62G03H2210/63G03H2222/33G03H2223/26G03H2240/56
    • A harmonic holography (H 2 ) technique and system that combines holography and nonlinear optics that enables holographic recording of 3D images with femtosecond framing time are provided. The H 2 technique records holograms with second harmonic (SH) signals scattered off specialized nanocrystals that are functionalized to label specific protein or other biomolecules in a living organism. The capability of generating second harmonic radiations is specific to materials with noncentrosymmetric crystalline structures only, and χ® vanishes for all other types of materials. Therefore, a sharp contrast is formed when particles of noncentrosymmetric structures are dispersed in a medium of other species, pumped at a fundamental frequency, and imaged at the second harmonic frequency. The new scheme described herein provides a sound basis for a new type of contrast microscopy with enormous potential in molecular biomedical imaging.
    • 提供了一种组合全息和非线性光学的谐波全息技术和系统,可实现3D图像与飞秒帧时间的全息记录。 H 2技术记录具有二次谐波(SH)信号的全息图,该二次谐波(SH)信号被散射出专门的纳米晶体,其被功能化以标记特定蛋白质或活体内的其它生物分子。 产生二次谐波辐射的能力仅限于具有非中心对称结晶结构的材料,而对于所有其他类型的材料,?®消失。 因此,当非中心对称结构的颗粒分散在其他物质的介质中,以基频泵浦并且以二次谐波频率成像时,形成明显的对比。 本文描述的新方案为分子生物医学成像中具有巨大潜力的新型对比显微镜提供了良好的基础。
    • 6. 发明申请
    • HOLOGRAPHIC DEVICE AND METHOD FOR DETERMINATION OF PHOTOELECTRIC PARAMETERS OF A SEMICONDUCTOR
    • 用于确定半导体光电参数的全息装置和方法
    • WO2006093399A1
    • 2006-09-08
    • PCT/LT2006/000001
    • 2006-01-13
    • JARASIUNAS, KestutisSUDZIUS, Markas
    • JARASIUNAS, KestutisSUDZIUS, Markas
    • G01R31/26G01N21/88G03H1/00
    • G03H1/0005G03H2001/0033G03H2001/0268G03H2222/33G03H2223/26H01L22/14
    • The invention is intended for measurement of a semiconductor photoelectric properties by optical means and, thus, can be used for contactless characterization of semiconductor crystals, structures, or evaluation of their fabrication technology. A holographic method for determination of photoelectric parameters of a semiconductor uses for optical excitation two beams with identical wave fronts that are created by an optical mask, monitors the light-induced spatially-modulated structure within the investigated semiconductor by optical probe pulse, measures the diffraction characteristics of the probe beam which diffracts on the structure, and determines the photoelectric parameters of a semiconductor from the diffraction characteristics. A holographic device for determination of photoelectric parameters of a semiconductor employs a diffraction grating and beam-aligning elements positioned in the optical excitation channels, variable delay line for the probe beam, and set of detectors to monitor characteristics of probe beam diffraction efficiency on the spatially modulated structure.
    • 本发明旨在通过光学装置测量半导体光电性能,因此可用于半导体晶体的非接触表征,结构或其制造技术的评估。 用于确定半导体光电参数的全息方法用于由光掩模产生的具有相同波阵面的光激发两束光束,通过光探针脉冲监测所研究半导体内的光诱导空间调制结构,测量衍射 在结构上衍射的探针光束的特性,并根据衍射特性确定半导体的光电参数。 用于确定半导体的光电参数的全息装置采用位于光激发通道中的衍射光栅和光束对准元件,用于探测光束的可变延迟线以及用于监测探针光束衍射效率在空间上的特性的组 调制结构。
    • 7. 发明申请
    • RECORDING MULTIPLE SPATIALLY-HETERODYNED DIRECT TO DIGITAL HOLOGRAMS IN ONE DIGITAL IMAGE
    • 在数字图像中直接与多个数字HOLOGRAMS进行多重空间记录
    • WO2004094942A3
    • 2005-04-14
    • PCT/US2004012798
    • 2004-04-23
    • UT BATTELLE LLCHANSON GREGORY RBINGHAM PHILIP R
    • HANSON GREGORY RBINGHAM PHILIP R
    • G03H1/04G03H1/08G01B9/021G03H1/28
    • G03H1/0406G03H1/0443G03H1/0866G03H1/265G03H2001/0456G03H2001/046G03H2001/0469G03H2001/2655G03H2210/56G03H2222/13G03H2223/26G03H2226/13
    • Systems and methods are described for recording multiple spatially-heterodyned direct to digital holograms in one digital image. A method includes digitally recording, at a first reference beam-object beam angle, a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram to sit on top of a first spatial-heterodyne carrier frequency defined by the first reference beam-object beam angle; digitally recording, at a second reference beam-object beam angle, a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram to sit on top of a second spatial-heterodyne carrier frequency defined by the second reference beam-object beam angle; applying a first digital filter to cut off signals around the first original origin and define a first result; performing a first inverse Fourier transform on the first result; applying a second digital filter to cut off signals around the second original origin and define a second result; and performing a second inverse Fourier transform on the second result, wherein the first reference beam-object beam angle is not equal to the second reference beam-object beam angle and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram.
    • 描述了用于在一个数字图像中记录多个空间外差直接数字全息图的系统和方法。 一种方法包括以第一参考光束对象光束角度数字地记录包括用于傅立叶分析的空间外差条纹的第一空间外差全息图; 通过将所记录的第一空间外差全息图的第一原始原点移位以位于由第一参考光束 - 物体光束角定义的第一空间 - 外差载波频率的顶部上,傅里叶分析所记录的第一空间外差全息图; 以第二参考光束 - 物体光束角数字地记录包括用于傅立叶分析的空间外差条纹的第二空间外差全息图; 通过将所记录的第二空间外差全息图的第二原始原点移动到位于由第二参考光束 - 物体光束角度限定的第二空间 - 外差载波频率的顶部上来傅立叶分析所记录的第二空间外差全息图; 应用第一数字滤波器来切断围绕第一原始原点的信号并且定义第一结果; 对所述第一结果执行第一逆傅里叶变换; 施加第二数字滤波器以切断围绕第二原始原点的信号并限定第二结果; 以及对所述第二结果执行第二傅立叶逆变换,其中所述第一参考光束对象光束角度不等于所述第二参考光束对象光束角度,并且单个数字图像包括所述第一空间外差全息图和所述第二空间对象光束角度 - 全息全息图。