公开(公告)号：US5339305A

公开(公告)日：1994-08-16

申请号：US930095

申请日：1992-08-14

申请人： Kevin R. Curtis ,  Demetri Psaltis

发明人： Kevin R. Curtis ,  Demetri Psaltis

IPC分类号： G03H1/04 ,  G03H1/16 ,  G03H1/26 ,  G11B7/0065 ,  G11B7/00 ,  G06K9/76

CPC分类号： G03H1/0406 ,  G03H1/16 ,  G03H1/26 ,  G11B7/0065 ,  G03H2270/22

摘要： The correlation speed and storage capacity of an optical disk-based correlator is enhanced by employing a thick (several hundred micron) photo- polymeric film (or other thick holographic media) on the disk as the recording media to permit volume holography and angular multiplexing of holograms in each spot on the disk. For example, if 100 holograms are multiplexed at one spot, 100 1-dimensional correlation functions can be read in parallel off of the disk while illuminating it with a single input image. The diffraction of the image beam by the recorded holographic patterns occurs at the holograms in the disk. The full 2-dimensional correlation function for each one of the holograms stored in a given spot on the disk is generated line-by-line a follows: By imaging in the along-track direction of the disk and Fourier transforming in the radial direction of the disk when both recording the template image hologram and presenting the input image to the recorded hologram, disk rotation generates the two-dimensional correlation functions between stored template images and the input image. All correlation functions for holograms angularly multiplexed at a given spot are generated line-by-line and detected in parallel along adjacent line detectors in the off-disk correlation plane.

摘要翻译： 通过在盘上使用厚（几百微米）的光聚合物膜（或其他厚的全息介质）作为记录介质来增强基于光盘的相关器的相关速度和存储容量，以允许体积全息术和角多路复用 全息图在磁盘上的每个点。 例如，如果100个全息图在一个点被多路复用，则100个一维相关函数可以在与单个输入图像一起照亮的同时从盘读出。 通过记录的全息图案的图像束的衍射发生在盘中的全息图。 存储在磁盘上给定点上的每个全息图的完整2维相关函数如下逐行生成：通过在盘的沿磁道方向成像并沿径向的傅里叶变换 当记录模板图像全息图并将输入图像呈现给所记录的全息图时，盘的旋转产生存储的模板图像与输入图像之间的二维相关函数。 在给定点上角度复用的全息图的所有相关函数被逐行生成并且在离盘相关平面中沿着相邻线检测器并行检测。

公开(公告)号：US20110063623A1

公开(公告)日：2011-03-17

申请号：US12823201

申请日：2010-06-25

申请人： Xiquan Cui ,  Xin Heng ,  Changhuei Yang ,  Axel Scherer ,  Demetri Psaltis

发明人： Xiquan Cui ,  Xin Heng ,  Changhuei Yang ,  Axel Scherer ,  Demetri Psaltis

IPC分类号： G01B9/02

CPC分类号： G02B21/0056 ,  G01N21/553 ,  G02B21/18 ,  G02B21/361

摘要： A differential interference contrast (DIC) determination device and method utilizes an illumination source, a layer having a pair of two apertures that receive illumination from the illumination source, and a photodetector to receive Young's interference from the illumination passing through the pair of two apertures. In addition, a surface wave assisted optofluidic microscope and method utilize an illumination source, a fluid channel having a layer with at least one aperture as a surface, and a photodetector that receives a signal based on the illumination passing through the aperture. The layer is corrugated (e.g., via fabrication) and parameters of the corrugation optimize the signal received on the photodetector.

摘要翻译： 差分干涉对比度（DIC）确定装置和方法利用照明源，具有一对两个孔的层，其接收来自照明源的照明，以及光电检测器，用于接收来自穿过该对两个孔的照明的杨氏干扰。 此外，表面波辅助光流体显微镜和方法利用照明源，具有至少一个孔的层作为表面的流体通道，以及基于穿过孔的照明而接收信号的光电检测器。 该层是波纹状的（例如通过制造），并且波纹的参数优化了在光电检测器上接收的信号。

公开(公告)号：US20100296094A1

公开(公告)日：2010-11-25

申请号：US12785635

申请日：2010-05-24

申请人： Changhuei Yang ,  Demetri Psaltis

发明人： Changhuei Yang ,  Demetri Psaltis

IPC分类号： G01N21/59

CPC分类号： G01N21/6458 ,  B82Y30/00

摘要： An optofluidic microscope device is disclosed. The device includes a fluid channel having a surface and an object such as a bacterium or virus may flow through the fluid channel. Light transmissive regions of different sizes may be used to image the object.

摘要翻译： 公开了一种光流体显微镜装置。 该装置包括具有表面的流体通道，诸如细菌或病毒的物体可以流过流体通道。 可以使用不同尺寸的透光区域对物体进行成像。

公开(公告)号：US07768654B2

公开(公告)日：2010-08-03

申请号：US11743581

申请日：2007-05-02

申请人： Xiquan Cui ,  Xin Heng ,  Changhuei Yang ,  Axel Scherer ,  Demetri Psaltis

发明人： Xiquan Cui ,  Xin Heng ,  Changhuei Yang ,  Axel Scherer ,  Demetri Psaltis

IPC分类号： G01B9/02

CPC分类号： G02B21/0056 ,  G01N21/553 ,  G02B21/18 ,  G02B21/361

摘要： A differential interference contrast (DIC) determination device and method utilizes an illumination source, a layer having a pair of two apertures that receive illumination from the illumination source, and a photodetector to receive Young's interference from the illumination passing through the pair of two apertures. In addition, a surface plasmon assisted optofluidic microscope and method utilize an illumination source, a fluid channel having a layer with at least one aperture as a surface, and a photodetector that receives a signal based on the illumination passing through the aperture. The layer is corrugated (e.g., via fabrication) and parameters of the corrugation optimize the signal received on the photodetector.

摘要翻译： 差分干涉对比度（DIC）确定装置和方法利用照明源，具有一对两个孔的层，其接收来自照明源的照明，以及光电检测器，用于接收来自穿过该对两个孔的照明的杨氏干扰。 此外，表面等离子体激元辅助光流体显微镜和方法利用照明源，具有至少一个孔的层作为表面的流体通道，以及基于穿过孔的照明而接收信号的光电检测器。 该层是波纹状的（例如通过制造），并且波纹的参数优化了在光电检测器上接收的信号。

公开(公告)号：US07542639B2

公开(公告)日：2009-06-02

申请号：US11092392

申请日：2005-03-29

申请人： Christophe Moser ,  Karsten Buse ,  Demetri Psaltis

发明人： Christophe Moser ,  Karsten Buse ,  Demetri Psaltis

IPC分类号： G02B6/34 ,  G02B5/32 ,  G03H1/28

CPC分类号： G02B6/34 ,  H01S3/094003

摘要： In the present invention, a volume holographic optical element is used as a pump coupler. The holographic coupler allows at least one pump wavelength to be coupled into the laser medium. The direction of the pump beam onto the coupler is not co-linear with the direction of the signal beam out of the coupler. The invention further provides the coupling of more than one pump wavelengths using a single holographic coupler element while maintaining the high isolation between pump and signal beam. The invention further provides a narrow-band reflection grating of various efficiencies for the signal beam (as part of the laser cavity).

摘要翻译： 在本发明中，使用体积全息光学元件作为泵耦合器。 全息耦合器允许至少一个泵波长耦合到激光介质中。 泵浦光束到耦合器上的方向与信号光束离开耦合器的方向不是共线的。 本发明还提供了使用单个全息耦合器元件的多于一个的泵浦波长的耦合，同时保持了泵浦和信号波束之间的高隔离度。 本发明还提供了用于信号光束（作为激光腔的一部分）的各种效率的窄带反射光栅。

公开(公告)号：US20080245430A1

公开(公告)日：2008-10-09

申请号：US12020504

申请日：2008-01-25

申请人： James Adleman ,  David A. Boyd ,  David G. Goodwin ,  Demetri Psaltis

发明人： James Adleman ,  David A. Boyd ,  David G. Goodwin ,  Demetri Psaltis

IPC分类号： F15C1/04

CPC分类号： F04B19/006 ,  B01L3/50273 ,  B01L2400/0454 ,  Y10T137/0318 ,  Y10T137/2191 ,  Y10T137/2196

摘要： A method of microfluidic control via localized heating includes providing a microchannel structure with a base region that is partially filled with a volume of liquid being separated from a gas by a liquid-gas interface region. The base region includes one or more physical structures. The method further includes supplying energy input to a portion of the one or more physical structures within the volume of liquid in a vicinity of the liquid-gas interface region to cause localized heating of the portion of the one or more physical structures. The method also includes transferring heat from the portion of the one or more physical structures to surrounding liquid in the vicinity of the liquid-gas interface region and generating an interphase mass transport at the liquid-gas interface region or across a gas bubble while the volume of liquid and the gas remain to be substantially at ambient temperature.

摘要翻译： 通过局部加热的微流控制的方法包括提供微通道结构，其具有部分填充有通过液 - 气界面区域与气体分离的体积的液体的基区。 基区包括一个或多个物理结构。 该方法还包括向液 - 液界面区域附近的液体体积内的一个或多个物理结构的一部分提供能量输入，以引起该一个或多个物理结构的该部分的局部加热。 该方法还包括将热量从一个或多个物理结构的部分转移到液 - 气界面区附近的周围液体，并在液 - 气界面区域或气泡周围产生相间质量传输，同时体积 的液体，气体基本保持在环境温度。

公开(公告)号：US07136206B2

公开(公告)日：2006-11-14

申请号：US11004319

申请日：2004-12-03

申请人： Demetri Psaltis ,  Christophe Moser ,  Greg Steckman ,  Karsten Buse ,  Ingo Nee ,  Joerg Hukriede

发明人： Demetri Psaltis ,  Christophe Moser ,  Greg Steckman ,  Karsten Buse ,  Ingo Nee ,  Joerg Hukriede

IPC分类号： G03H1/02

CPC分类号： G02B6/2931 ,  G02B6/29311 ,  G02B6/29316 ,  G02B6/29395 ,  G03H2260/54

摘要： The present invention provides a multi-channel tunable filter and methods for making such a filter. In one embodiment, the filter comprises a bank of gratings imprinted into a filter material, such as Lithium Niobate. In another embodiment, the filter comprises a bank of gratings imprinted on a thin-film filter. An optical read-head comprising a pair of lenses is configured to pass light from within an optical fiber carrying multiple wavelengths through an appropriate grating to extract or drop a specific wavelength. To ensure continuous data transmission, the filter is tuned to a wavelength by configuring the read-head to move in a hitless manner. In one embodiment, the gratings are recorded by the interference of two beams. A first plane wave reflects off a first mirror stack and a second plane wave reflects off a second mirror stack. In another embodiment, the gratings are recorded by a phase masking method.

公开(公告)号：US06862121B2

公开(公告)日：2005-03-01

申请号：US10163039

申请日：2002-06-05

申请人： Demetri Psaltis ,  Gregory J. Steckman ,  Zhiwen Liu ,  Theodore W. Haensch ,  John Hong ,  Martin Centurion

发明人： Demetri Psaltis ,  Gregory J. Steckman ,  Zhiwen Liu ,  Theodore W. Haensch ,  John Hong ,  Martin Centurion

IPC分类号： G03H1/04 ,  G03H1/26 ,  G03H1/12

CPC分类号： G03H1/26 ,  G03H1/04 ,  G03H1/2645 ,  G03H1/265 ,  G03H2001/0436 ,  G03H2001/0445 ,  G03H2001/2655 ,  G03H2210/62 ,  G03H2222/33 ,  G03H2226/11 ,  G03H2260/54

摘要： Holographic methods for recording fast movies whose speed is limited by the laser pulse duration if the recording material has sufficient sensitivity to reliably record a frame of the fast event with a single pulse. The method we describe uses the selectivity of multiplexed holograms to resolve frames that are recorded with adjacent pulses. Specially designed pulse generators are used to generate the signal and reference pulse trains. We experimentally demonstrate the system by making movies of laser induced shock waves with a temporal resolution of 5.9 ns, limited by the pulse width of the Q-switched Nd:YAG laser used in the experiments.

摘要翻译： 如果记录材料具有足够的灵敏度，用速度受到激光脉冲持续时间限制的快速动画的全息方法可靠地以单个脉冲记录快速事件的帧。 我们描述的方法使用复用全息图的选择性来解析用相邻脉冲记录的帧。 专门设计的脉冲发生器用于产生信号和参考脉冲串。 我们用激光诱发的冲击波电影实验证明该系统的时间分辨率为5.9 ns，受实验中使用的Q开关Nd：YAG激光器的脉冲宽度限制。

公开(公告)号：US06844946B2

公开(公告)日：2005-01-18

申请号：US09823173

申请日：2001-03-29

申请人： Karsten Buse ,  Demetri Psaltis

发明人： Karsten Buse ,  Demetri Psaltis

IPC分类号： G02B5/32 ,  G02B6/34 ,  G02F1/03

CPC分类号： G02B6/29322 ,  G02B5/32 ,  G02B6/29383 ,  G02B6/34 ,  G02F1/0338

摘要： An optical add/drop filter is formed using a hologram which is tuned to a wavelength in an optical signal. The diffraction condition of the hologram may be varied to vary the in add or drop content.

摘要翻译： 使用调谐到光信号中的波长的全息图来形成光学分插滤波器。 可以改变全息图的衍射条件以改变添加或降落内容。

公开(公告)号：US06587180B2

公开(公告)日：2003-07-01

申请号：US09820100

申请日：2001-03-27

申请人： Xu Wang ,  Demetri Psaltis

发明人： Xu Wang ,  Demetri Psaltis

IPC分类号： G02G113

CPC分类号： G02B27/0087 ,  G02F1/133371 ,  G02F1/13471 ,  G02F1/292

摘要： A system of beam steering using electrical operation. A first system provides a grating and a liquid crystal material. When the liquid crystal is unenergized, there is a mismatch between the liquid crystal and the grating, causing the grating to diffract the light in a specified direction. The liquid crystal is energized to match its index of refraction to the grating. Then, the light is not diffracted by the grating, and hence travels in a different direction then it would when the liquid crystal was not energized. Another, finer system, forms electrically generated gratings using a liquid crystal material.