公开(公告)号：US20100309465A1

公开(公告)日：2010-12-09

申请号：US12793976

申请日：2010-06-04

申请人： Zhiwen Liu ,  Kebin Shi ,  Demetri Psaltis ,  Qian Xu

发明人： Zhiwen Liu ,  Kebin Shi ,  Demetri Psaltis ,  Qian Xu

IPC分类号： G01J3/44

CPC分类号： G01J3/44 ,  G01N21/65 ,  G01N2021/653 ,  G02B21/0004 ,  G02B21/086 ,  G02B21/14 ,  G03H1/0005 ,  G03H1/02 ,  G03H1/04 ,  G03H1/0443 ,  G03H1/0866 ,  G03H2001/0212 ,  G03H2001/0445 ,  G03H2001/0447 ,  G03H2222/10

摘要： Apparatus and methods of four wave mixing (FWM) holography are described, including illuminating a sample with a first beam, a second beam, and a third beam, and combining the generated FWM signal with a reference beam at a imaging device to obtain holographic image data. In some examples, the first and second beams may be provided by a single pump-probe beam. The third beam may be a Stokes beam or an anti-Stokes beam. A representative example is coherent anti-Stokes Raman holography (CARS holography), which includes illuminating a sample with a pump/probe beam and a Stokes beam to obtain a CARS signal from the sample; and combining the CARS signal with a reference beam to obtain a CARS hologram.

摘要翻译： 描述了四波混合（FWM）全息术的装置和方法，包括用第一光束，第二光束和第三光束照射样本，并将所生成的FWM信号与成像装置处的参考光束组合以获得全息图像 数据。 在一些示例中，第一和第二梁可以由单个泵 - 探针梁提供。 第三光束可以是斯托克斯光束或反斯托克斯光束。 一个典型的例子是相干反斯托克斯拉曼全息术（CARS holography），其包括用泵/探针光束和斯托克斯光束照射样品以从样品获得CARS信号; 并将CARS信号与参考光束组合以获得CARS全息图。

公开(公告)号：US08675201B2

公开(公告)日：2014-03-18

申请号：US12793976

申请日：2010-06-04

申请人： Zhiwen Liu ,  Kebin Shi ,  Demetri Psaltis ,  Qian Xu

发明人： Zhiwen Liu ,  Kebin Shi ,  Demetri Psaltis ,  Qian Xu

IPC分类号： G01B9/021

CPC分类号： G01J3/44 ,  G01N21/65 ,  G01N2021/653 ,  G02B21/0004 ,  G02B21/086 ,  G02B21/14 ,  G03H1/0005 ,  G03H1/02 ,  G03H1/04 ,  G03H1/0443 ,  G03H1/0866 ,  G03H2001/0212 ,  G03H2001/0445 ,  G03H2001/0447 ,  G03H2222/10

摘要： Apparatus and methods of four wave mixing (FWM) holography are described, including illuminating a sample with a first beam, a second beam, and a third beam, and combining the generated FWM signal with a reference beam at a imaging device to obtain holographic image data. In some examples, the first and second beams may be provided by a single pump-probe beam. The third beam may be a Stokes beam or an anti-Stokes beam. A representative example is coherent anti-Stokes Raman holography (CARS holography), which includes illuminating a sample with a pump/probe beam and a Stokes beam to obtain a CARS signal from the sample; and combining the CARS signal with a reference beam to obtain a CARS hologram.

摘要翻译： 描述了四波混合（FWM）全息术的装置和方法，包括用第一光束，第二光束和第三光束照射样本，并将所产生的FWM信号与成像装置处的参考光束组合以获得全息图像 数据。 在一些示例中，第一和第二梁可以由单个泵 - 探针梁提供。 第三光束可以是斯托克斯光束或反斯托克斯光束。 一个典型的例子是相干反斯托克斯拉曼全息术（CARS holography），其包括用泵/探针光束和斯托克斯光束照射样品以从样品获得CARS信号; 并将CARS信号与参考光束组合以获得CARS全息图。

公开(公告)号：US20120038918A1

公开(公告)日：2012-02-16

申请号：US13208922

申请日：2011-08-12

申请人： Zhiwen Liu ,  Chuan Yang ,  Kebin Shi ,  Perry Edwards

发明人： Zhiwen Liu ,  Chuan Yang ,  Kebin Shi ,  Perry Edwards

IPC分类号： G01J3/18 ,  B29D11/00 ,  G02B5/18

CPC分类号： B29D11/00769 ,  B29D11/00269 ,  G01J3/0208 ,  G01J3/18 ,  G02B1/06 ,  G02B3/08 ,  G02B5/1814 ,  G02B27/4244

摘要： Embodiments of the invention provide a device called a “G-Fresnel” device that performs the functions of both a linear grating and a Fresnel lens. We have fabricated the G-Fresnel device by using PDMS based soft lithography. Three-dimensional surface profilometry has been performed to examine the device quality. We have also conducted optical characterizations to confirm its dual focusing and dispersing properties. The G-Fresnel device can be useful for the development of miniature optical spectrometers as well as emerging optofluidic applications. Embodiments of compact spectrometers using diffractive optical elements are also provided. Theoretical simulation shows that a spectral resolution of approximately 1 nm can be potentially achieved with a millimeter-sized G-Fresnel. A proof-of-concept G-Fresnel-based spectrometer with subnanometer spectral resolution is experimentally demonstrated.

摘要翻译： 本发明的实施例提供了一种称为“G-Fresnel”器件的器件，其执行线性光栅和菲涅耳透镜的功能。 我们通过使用基于PDMS的软光刻制造了G-Fresnel器件。 已经进行三维表面轮廓测量以检查设备质量。 我们还进行了光学表征，以确认其双重聚焦和分散性能。 G-Fresnel器件可用于开发微型光谱仪以及新兴的光流体应用。 还提供了使用衍射光学元件的紧凑型光谱仪的实施例。 理论模拟显示，使用毫米级的G-Fresnel可以潜在地实现约1nm的光谱分辨率。 实验证明了具有亚纳米光谱分辨率的概念验证型G-菲涅耳光谱仪。

公开(公告)号：US08861086B2

公开(公告)日：2014-10-14

申请号：US13208922

申请日：2011-08-12

申请人： Zhiwen Liu ,  Chuan Yang ,  Kebin Shi ,  Perry Edwards

发明人： Zhiwen Liu ,  Chuan Yang ,  Kebin Shi ,  Perry Edwards

IPC分类号： G02B5/18 ,  G02B3/08 ,  G01J3/40 ,  G01J3/28 ,  G01J3/02 ,  G01J3/18 ,  B29D11/00 ,  G02B27/42 ,  G02B1/06

CPC分类号： B29D11/00769 ,  B29D11/00269 ,  G01J3/0208 ,  G01J3/18 ,  G02B1/06 ,  G02B3/08 ,  G02B5/1814 ,  G02B27/4244

摘要： Embodiments of the invention provide a device called a “G-Fresnel” device that performs the functions of both a linear grating and a Fresnel lens. We have fabricated the G-Fresnel device by using PDMS based soft lithography. Three-dimensional surface profilometry has been performed to examine the device quality. We have also conducted optical characterizations to confirm its dual focusing and dispersing properties. The G-Fresnel device can be useful for the development of miniature optical spectrometers as well as emerging optofluidic applications. Embodiments of compact spectrometers using diffractive optical elements are also provided. Theoretical simulation shows that a spectral resolution of approximately 1 nm can be potentially achieved with a millimeter-sized G-Fresnel. A proof-of-concept G-Fresnel-based spectrometer with subnanometer spectral resolution is experimentally demonstrated.

摘要翻译： 本发明的实施例提供了一种称为“G-Fresnel”器件的器件，其执行线性光栅和菲涅耳透镜的功能。 我们通过使用基于PDMS的软光刻制造了G-Fresnel器件。 已经进行三维表面轮廓测量以检查设备质量。 我们还进行了光学表征，以确认其双重聚焦和分散性能。 G-Fresnel器件可用于开发微型光谱仪以及新兴的光流体应用。 还提供了使用衍射光学元件的紧凑型光谱仪的实施例。 理论模拟显示，使用毫米级的G-Fresnel可以潜在地实现约1nm的光谱分辨率。 实验证明了具有亚纳米光谱分辨率的概念验证型G-菲涅耳光谱仪。

公开(公告)号：US09547163B2

公开(公告)日：2017-01-17

申请号：US14093188

申请日：2013-11-29

申请人： Zhiwen Liu ,  Chuan Yang ,  Kebin Shi ,  Mingda Zhou ,  Siyang Zheng ,  Shizhuo Yin

发明人： Zhiwen Liu ,  Chuan Yang ,  Kebin Shi ,  Mingda Zhou ,  Siyang Zheng ,  Shizhuo Yin

IPC分类号： G02B21/36 ,  G02B21/00

CPC分类号： G02B21/008 ,  G02B21/006

摘要： We present a method for parallel axial imaging, or z-microscopy, utilizing an array of tilted micro mirrors arranged along the axial direction. Image signals emitted from different axial positions can be orthogonally reflected by the corresponding micro mirrors and spatially separated for parallel detection, essentially converting the more challenging axial imaging to a lateral imaging problem. Each micro mirror also provides optical sectioning capability due to its finite dimension.

摘要翻译： 我们提出了一种用于平行轴向成像或z-显微镜的方法，利用沿轴向布置的倾斜微反射镜阵列。 从不同轴向位置发射的图像信号可以由相应的微镜正交反射，并在空间上分离用于并行检测，基本上将更具挑战性的轴向成像转换为侧向成像问题。 每个微镜由于其有限的尺寸而提供光学切割能力。

公开(公告)号：US20140146159A1

公开(公告)日：2014-05-29

申请号：US14093188

申请日：2013-11-29

申请人： Zhiwen Liu ,  Chuan Yang ,  Kebin Shi ,  Mingda Zhou ,  Siyang Zheng ,  Shizhuo Yin

发明人： Zhiwen Liu ,  Chuan Yang ,  Kebin Shi ,  Mingda Zhou ,  Siyang Zheng ,  Shizhuo Yin

IPC分类号： G02B21/36

CPC分类号： G02B21/008 ,  G02B21/006

摘要： We present a method for parallel axial imaging, or z-microscopy, utilizing an array of tilted micro mirrors arranged along the axial direction. Image signals emitted from different axial positions can be orthogonally reflected by the corresponding micro mirrors and spatially separated for parallel detection, essentially converting the more challenging axial imaging to a lateral imaging problem. Each micro mirror also provides optical sectioning capability due to its finite dimension.

摘要翻译： 我们提出了一种用于平行轴向成像或z-显微镜的方法，利用沿轴向布置的倾斜微反射镜阵列。 从不同轴向位置发射的图像信号可以由相应的微镜正交反射，并在空间上分离用于并行检测，基本上将更具挑战性的轴向成像转换为侧向成像问题。 每个微镜由于其有限的尺寸而提供光学切割能力。