公开(公告)号：US07601977B2

公开(公告)日：2009-10-13

申请号：US11638100

申请日：2006-12-13

申请人： Ka-Lo Yeh ,  Eric Statz ,  Keith A. Nelson

发明人： Ka-Lo Yeh ,  Eric Statz ,  Keith A. Nelson

IPC分类号： G02F1/35

CPC分类号： G02F1/35 ,  G02F1/3544 ,  G02F2001/3542 ,  G02F2201/17 ,  G02F2202/20 ,  H01S1/02

摘要： Methods and apparatus are disclosed for directing optical radiation to make multiple passes across an extended region of an electro-optic material, where during each pass the electro-optic material converts a portion of the optical radiation into terahertz radiation, and where the optical radiation is directed into the electro-optic material to cause an amplitude of the terahertz radiation generated from one or more earlier passes of the optical radiation to be constructively enhanced by the terahertz radiation generated from a later pass of the optical radiation.

摘要翻译： 公开了用于引导光学辐射以跨越电光材料的延伸区域进行多遍的方法和装置，其中在每次通过期间，电光材料将光辐射的一部分转换成太赫兹辐射，并且其中光辐射为 引导到电光材料中，以使得由光辐射的一个或多个较早的通过产生的太赫兹辐射的振幅被由光辐射的稍后通过产生的太赫兹辐射进一步增强。

公开(公告)号：US20080265165A1

公开(公告)日：2008-10-30

申请号：US11638100

申请日：2006-12-13

申请人： Ka-Lo Yeh ,  Eric Statz ,  Keith A. Nelson

发明人： Ka-Lo Yeh ,  Eric Statz ,  Keith A. Nelson

IPC分类号： G01J5/02

CPC分类号： G02F1/35 ,  G02F1/3544 ,  G02F2001/3542 ,  G02F2201/17 ,  G02F2202/20 ,  H01S1/02

摘要： Methods and apparatus are disclosed for directing optical radiation to make multiple passes across an extended region of an electro-optic material, where during each pass the electro-optic material converts a portion of the optical radiation into terahertz radiation, and where the optical radiation is directed into the electro-optic material to cause an amplitude of the terahertz radiation generated from one or more earlier passes of the optical radiation to be constructively enhanced by the terahertz radiation generated from a later pass of the optical radiation.

摘要翻译： 公开了用于引导光学辐射以跨越电光材料的延伸区域进行多遍的方法和装置，其中在每次通过期间，电光材料将光辐射的一部分转换成太赫兹辐射，并且其中光辐射是 引导到电光材料中，以使得由光辐射的一个或多个较早的通过产生的太赫兹辐射的振幅被由光辐射的稍后通过产生的太赫兹辐射进一步增强。

公开(公告)号：US09945914B2

公开(公告)日：2018-04-17

申请号：US15600029

申请日：2017-05-19

申请人： Harold Young Hwang ,  Jian Lu ,  Yaqing Zhang ,  Benjamin K. Ofori-Okai ,  Keith A. Nelson ,  Xian Li

发明人： Harold Young Hwang ,  Jian Lu ,  Yaqing Zhang ,  Benjamin K. Ofori-Okai ,  Keith A. Nelson ,  Xian Li

IPC分类号： G01R33/26 ,  G01R33/60

CPC分类号： G01R33/26 ,  G01N24/10 ,  G01R33/323 ,  G01R33/60

摘要： A nonlinear terahertz (THz) spectroscopy technique uses a sample illuminated by two THz pulses separately. The illumination generates two signals BA and BB, corresponding to the first and second THz pulse, respectively, after interaction with the sample. The interaction includes excitation of at least one ESR transition in the sample. The sample is also illuminated by the two THz pulses together, with an inter-pulse delay τ, generating a third signal BAB. A nonlinear signal BNL is then derived via BNL=BAB−BA−BB. This nonlinear signal BNL can be then processed (e.g., Fourier transform) to study the properties of the sample.

公开(公告)号：US20160258807A1

公开(公告)日：2016-09-08

申请号：US15061308

申请日：2016-03-04

申请人： Brandt Christopher Pein ,  Harold Young Hwang ,  Wendi Chang ,  Keith A. Nelson ,  Vladimir Bulovic ,  Nathaniel C. Brandt

发明人： Brandt Christopher Pein ,  Harold Young Hwang ,  Wendi Chang ,  Keith A. Nelson ,  Vladimir Bulovic ,  Nathaniel C. Brandt

IPC分类号： G01J1/04 ,  G01J1/42

CPC分类号： G01J5/046 ,  G01J1/58 ,  G01J3/0216 ,  G01J3/0245 ,  G01J3/04 ,  G01J3/42 ,  G01J5/0815 ,  G01J5/0837

摘要： A radiation detection technique employs field enhancing structures and electroluminescent materials to converts incident Terahertz (THz) radiation into visible light and/or infrared light. In this technique, the field-enhancing structures, such as split ring resonators or micro-slits, enhances the electric field of incoming THz light within a local area, where the electroluminescent material is applied. The enhanced electric field then induces the electroluminescent material to emit visible and/or infrared light via electroluminescent process. A detector such as avalanche photodiode can detect and measure the emitted light. This technique allows cost-effective detection of THz radiation at room temperatures.

摘要翻译： 放射线检测技术采用场增强结构和电致发光材料将入射的太赫兹（THz）辐射转换成可见光和/或红外光。 在这种技术中，诸如开环谐振器或微缝隙的场增强结构增强了施加电致发光材料的局部区域内的进入的THz光的电场。 增强的电场然后诱导电致发光材料通过电致发光工艺发射可见光和/或红外光。 诸如雪崩光电二极管的检测器可以检测和测量发射的光。 这种技术允许在室温下对THz辐射进行成本有效的检测。

公开(公告)号：US07495816B2

公开(公告)日：2009-02-24

申请号：US11186735

申请日：2005-07-21

申请人： Joshua Vaughan ,  Thomas Hornung ,  Thomas Feurer ,  Keith A. Nelson

发明人： Joshua Vaughan ,  Thomas Hornung ,  Thomas Feurer ,  Keith A. Nelson

IPC分类号： G02B26/00

CPC分类号： H01S3/0057 ,  G02F1/1313 ,  G02F2203/12 ,  G02F2203/26

摘要： Disclosed is a method including: (i) dispersing frequency components of an input EM waveform along a first direction with each frequency component spatially extended along a second direction different from the first direction; (ii) setting an amplitude for an output portion of each of the spatially extended frequency components; and (iii) combining the output portions from the different frequency components to produce a temporally shaped output EM waveform, wherein setting the amplitude of each output portion comprises diffracting a corresponding input portion for the spatially extended frequency component along the second direction into different diffraction orders, wherein the combined output portions correspond to a common diffraction order. A system for performing the method is also disclosed.

摘要翻译： 公开了一种方法，包括：（i）将沿着第一方向的输入EM波形的频率分量分散成沿着与第一方向不同的第二方向空间延伸的每个频率分量; （ii）设置每个空间扩展的频率分量的输出部分的振幅; 并且（iii）组合来自不同频率分量的输出部分以产生时间成形的输出EM波形，其中设置每个输出部分的幅度包括将沿着第二方向的空间扩展频率分量的对应输入部分衍射成不同的衍射级 ，其中组合的输出部分对应于共同的衍射级。 还公开了一种用于执行该方法的系统。

公开(公告)号：US06627723B2

公开(公告)日：2003-09-30

申请号：US09746332

申请日：2000-12-21

申请人： Anthony G. Karandinos ,  David J. Lohse ,  Keith A. Nelson ,  Jean M. Tancrede ,  Bruce Allan Harrington ,  Olivier J. F. Georjon ,  Kenneth Lewtas

发明人： Anthony G. Karandinos ,  David J. Lohse ,  Keith A. Nelson ,  Jean M. Tancrede ,  Bruce Allan Harrington ,  Olivier J. F. Georjon ,  Kenneth Lewtas

IPC分类号： C08F21016

CPC分类号： C09J123/10 ,  C08F210/06 ,  C08L23/10 ,  C08L2205/02 ,  C08L2314/06 ,  C08L2666/02 ,  C08L2666/04 ,  C09J123/14 ,  C08F210/14 ,  C08F2500/17 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/03

摘要： The invention relates to novel adhesive alpha-olefin inter-polymers which are largely amorphous and have a rheological behavior that makes them suitable for adhesive use, both without and with minimized amounts of tackifying resins. Specifically, the invention poly-alpha olefin inter-polymer may be composed of A) from 60 to 94 mol % of units derived from one alpha mono-olefin having from 3 to 6 carbon atoms and B) from 6 to 40 mol % of units derived from one or more other mono-olefins having from 4 to 10 carbon atoms and at least one carbon atom more than A); and C) optionally from 0 to 10 mol % of units derived from another copolymerizable unsaturated hydrocarbon, different from A) and B); the diad distribution of component A in the polymer as determined by 13C NMR as described herein showing a ratio of experimentally determined diad distribution over the calculated Bernoullian diad distribution of less than 1.07; and the storage modulus G′ of said polymer, determined upon cooling as described herein, intersecting a value of 3.105 Pa at a temperature of less than 85° C. The invention also describes polymerization processes suitable for the manufacture of these adhesive alpha-olefin inter-polymers.

摘要翻译： 本发明涉及新型粘合剂α-烯烃聚合物，它们大部分是无定形的并且具有使其适合于粘合剂使用的流变行为，两者都没有和最少量的增粘树脂。 具体而言，本发明的聚α烯烃聚合物可以由A）60〜94摩尔％的来自1个具有3〜6个碳原子的α-单烯烃的单元组成，B）6〜40摩尔％的单元 衍生自一种或多种其它具有4至10个碳原子和至少一个碳原子的单烯烃，比A）多; 和C）任选地0至10mol％衍生自不同于A）和B）的另一种可共聚不饱和烃的单元; 如本文所述，通过13 C NMR确定的聚合物中组分A的二元分布显示出计算的伯努利二元分布的实验测定的二单元分布的比例小于1.07; 并且在本文所述的冷却下测定的所述聚合物的储能模量G'在小于85℃的温度下与3.10 5 Pa的值相交。本发明还描述了适用于制造这些粘合剂α 烯烃聚合物。

公开(公告)号：US5672830A

公开(公告)日：1997-09-30

申请号：US763873

申请日：1996-12-11

申请人： John A. Rogers ,  Keith A. Nelson ,  Lisa Dhar

发明人： John A. Rogers ,  Keith A. Nelson ,  Lisa Dhar

IPC分类号： G01N29/24 ,  G01N29/52 ,  G01N29/18

CPC分类号： G01N29/52 ,  G01N29/2418 ,  G01N2291/011 ,  G01N2291/012 ,  G01N2291/0237 ,  G01N2291/0422

摘要： Anisotropic mechanical properties of thin films are measured by exciting time-dependent waveguide acoustic modes in the thin film sample with a pair of excitation pulses from an excitation laser. The waveguide acoustic modes are then optically detected by diffracting a probe laser beam off the excited modes. The probe beam is detected to generate an electronic signal. The anisotropic moduli and related properties in the film are determined by analyzing the electronic signal using a mathematical inversion procedure.

摘要翻译： 利用激发激光器的一对激发脉冲，通过激发薄膜样品中的时间依赖波导声模来测量薄膜的各向异性机械性能。 然后通过将探针激光束衍射离开激发模式来光学检测波导声模式。 检测探测光束以产生电子信号。 通过使用数学反演程序分析电子信号来确定膜中的各向异性模量和相关性质。

公开(公告)号：US5662564A

公开(公告)日：1997-09-02

申请号：US648389

申请日：1996-05-15

申请人： Keith A. Nelson

发明人： Keith A. Nelson

IPC分类号： A63B21/04 ,  A63B21/055 ,  A63B23/12 ,  A63B21/02

CPC分类号： A63B21/0552 ,  A63B21/04 ,  A63B21/153 ,  A63B21/154 ,  A63B21/4049 ,  A63B21/00061 ,  A63B21/00069 ,  A63B21/0421 ,  A63B21/0557 ,  A63B23/12

摘要： An exercise device includes a base having a support column vertically extending therefrom. A handle assembly is rotatably mounted to one side of the column about a horizontal axis passing through the column. The handle assembly is linked to a first swingable housing on the opposed side of the column with rotation of the handle assembly causing a swingable movement of the first housing. An elastic band extends from the first housing and is wound about guide pins in a second housing fixed to the column so that movement of the first housing is resisted by the elastic band. The tension of the band is regulated by first and second band take up reels in the first housing, the reels being rotatable by a dial extending from the first housing. Rotation of the reels winds or unwinds the band ends therefrom so as to increase or decrease the tension in the elastic.

摘要翻译： 锻炼装置包括具有从其垂直延伸的支撑柱的底座。 手柄组件可旋转地安装在柱的一侧，围绕穿过柱的水平轴线。 手柄组件通过手柄组件的旋转而连接到柱的相对侧上的第一可摆动壳体，引起第一壳体的可摆动运动。 弹性带从第一壳体延伸，并且在固定到柱的第二壳体中围绕导销缠绕，使得第一壳体的运动被弹性带抵抗。 带的张力通过第一和第二带卷绕第一壳体中的卷轴来调节，卷轴可由通过从第一壳体延伸的刻度盘旋转。 卷轴的旋转卷绕或展开带端，从而增加或减小弹性体中的张力。

公开(公告)号：US07846330B2

公开(公告)日：2010-12-07

申请号：US12051730

申请日：2008-03-19

申请人： Keith A. Nelson

发明人： Keith A. Nelson

IPC分类号： B26F1/32

CPC分类号： B01D27/08 ,  B01D2201/24 ,  Y10T83/9314 ,  Y10T137/612 ,  Y10T137/6123

摘要： The invention is a handheld device for puncturing oil filters and thus allowing more retained oil to drain from used filters. An oil filter has several internal chambers filled with oil which do not drain by gravity from the filter unless the sidewall of the filter is punches. The device of the invention punches the sidewall of the filters, and provides a rack for draining the oil filters.

摘要翻译： 本发明是一种用于刺穿滤油器的手持装置，因此允许更多的保留的油从使用的过滤器排出。 油过滤器有几个内部充满油的内部空间，除非过滤器的侧壁是冲头，否则油不会通过重力从过滤器中排出。 本发明的装置冲压过滤器的侧壁，并且提供用于排出油过滤器的齿条。

公开(公告)号：US20090116009A1

公开(公告)日：2009-05-07

申请号：US12147842

申请日：2008-06-27

申请人： Keith A. Nelson ,  Kenan Gundogdu ,  Katherine W. Stone ,  Daniel B. Turner

发明人： Keith A. Nelson ,  Kenan Gundogdu ,  Katherine W. Stone ,  Daniel B. Turner

IPC分类号： G01J3/12 ,  G02F1/01

CPC分类号： G01J3/433 ,  G01J3/02 ,  G01J3/0224 ,  G01J2003/1286 ,  G02F2203/18 ,  G02F2203/26

摘要： Methods and apparatusare disclosed, and include: (a) separating an input electromagnetic waveform into a plurality of intermediate waveforms, each of the intermediate waveforms being spatially separated from one another; (b) dispersing frequency components of each intermediate waveform onto different regions of a spatial light modulator and modulating at least some of the dispersed frequency components with the spatial light modulator; and (c) recombining the dispersed frequency components for each of the intermediate waveforms to produce a plurality of temporally shaped output waveforms.

摘要翻译： 公开的方法和装置，包括：（a）将输入电磁波分离为多个中间波形，每个中间波形在空间上彼此分离; （b）将每个中间波形的频率分量分散到空间光调制器的不同区域，并用空间光调制器调制至少一些分散的频率分量; 和（c）将每个中间波形的分散频率分量重新组合以产生多个时间成形的输出波形。