公开(公告)号：US20120287951A1

公开(公告)日：2012-11-15

申请号：US11809177

申请日：2007-05-30

申请人： Raymond J. Beach ,  Jay W. Dawson ,  Michael J. Messerly ,  Christopher P.J. Barty

发明人： Raymond J. Beach ,  Jay W. Dawson ,  Michael J. Messerly ,  Christopher P.J. Barty

IPC分类号： H01S3/067

CPC分类号： H01S3/06754 ,  H01S3/08072 ,  H01S3/08077 ,  H01S3/094057 ,  H01S3/09415 ,  H01S3/1022 ,  H01S3/1312 ,  H01S3/1618 ,  H01S3/176

摘要： Single, or near single transverse mode waveguide definition is produced using a single homogeneous medium to transport both the pump excitation light and generated laser light. By properly configuring the pump deposition and resulting thermal power generation in the waveguide device, a thermal focusing power is established that supports perturbation-stable guided wave propagation of an appropriately configured single or near single transverse mode laser beam and/or laser pulse.

摘要翻译： 使用单个均匀介质来产生单个或几乎单个横向模式波导定义，以传送泵浦激发光和产生的激光。 通过适当地配置波导器件中的泵沉积和产生的热发电，建立了支持适当配置的单个或接近单横模激光束和/或激光脉冲的扰动稳定导波传播的热聚焦功率。

公开(公告)号：US20080260338A1

公开(公告)日：2008-10-23

申请号：US11809112

申请日：2007-05-30

申请人： Michael J. Messerly ,  Jay W. Dawson ,  Raymond J. Beach ,  Christopher P.J. Barty

发明人： Michael J. Messerly ,  Jay W. Dawson ,  Raymond J. Beach ,  Christopher P.J. Barty

IPC分类号： G02B6/036

CPC分类号： G02B6/03666 ,  G02B6/03611 ,  H01S3/06708

摘要： A waveguide includes a cladding region that has a refractive index that is substantially uniform and surrounds a wave-guiding region that has an average index that is close to the index of the cladding. The wave-guiding region also contains a thin ring or series of rings that have an index or indices that differ significantly from the index of the cladding. The ring or rings enable the structure to guide light.

摘要翻译： 波导包括具有基本均匀的折射率并且包围具有接近包层的折射率的平均折射率的波导区域的包层区域。 波导区域还包含具有与包层指数显着不同的指数或指数的薄环或一系列环。 环或环使结构能够引导光。

公开(公告)号：US20090147920A1

公开(公告)日：2009-06-11

申请号：US11528182

申请日：2006-09-26

申请人： Christopher P.J. Barty ,  Frederic V. Hartemann ,  Dennis P. McNabb ,  Jason A. Pruet

发明人： Christopher P.J. Barty ,  Frederic V. Hartemann ,  Dennis P. McNabb ,  Jason A. Pruet

IPC分类号： G01N23/201

CPC分类号： G01N23/223 ,  G01N2223/076

摘要： The present invention utilizes novel laser-based, high-brightness, high-spatial-resolution, pencil-beam sources of spectrally pure hard x-ray and gamma-ray radiation to induce resonant scattering in specific nuclei, i.e., nuclear resonance fluorescence. By monitoring such fluorescence as a function of beam position, it is possible to image in either two dimensions or three dimensions, the position and concentration of individual isotopes in a specific material configuration. Such methods of the present invention material identification, spatial resolution of material location and ability to locate and identify materials shielded by other materials, such as, for example, behind a lead wall. The foundation of the present invention is the generation of quasimonochromatic high-energy x-ray (100's of keV) and gamma-ray (greater than about 1 MeV) radiation via the collision of intense laser pulses from relativistic electrons. Such a process as utilized herein, i.e., Thomson scattering or inverse-Compton scattering, produces beams having diameters from about 1 micron to about 100 microns of high-energy photons with a bandwidth of ΔE/E of approximately 10E−3.

摘要翻译： 本发明利用光谱纯硬X射线和γ射线辐射的新颖的基于激光的高亮度，高空间分辨率的铅笔光束来诱导特定核中的共振散射，即核共振荧光。 通过监测作为光束位置的函数的这种荧光，可以在二维或三维中成像特定材料构型中单个同位素的位置和浓度。 本发明的这种方法材料识别，材料位置的空间分辨以及定位和识别由其他材料（例如，铅壁后面）屏蔽的材料的能力。 本发明的基础是通过来自相对论电子的强激光脉冲的碰撞产生准二色性高能x射线（keV的100）和伽马射线（大于约1MeV）辐射。 这种在本文中使用的方法，即汤姆逊散射或反康普顿散射，产生具有约1微米至约100微米的具有约10E-3的带宽DeltaE / E的高能光子的光束。