公开(公告)号：US20170077665A1

公开(公告)日：2017-03-16

申请号：US15261300

申请日：2016-09-09

Applicant: THE CHINESE UNIVERSITY OF HONG KONG

Inventor： Renbao Liu ,  Liang Jin

IPC: H01S1/02

CPC classification number: H01S1/005 ,  H01S1/02 ,  H01S3/0326 ,  H01S3/0602 ,  H01S3/10007 ,  H01S3/163 ,  H01S4/00

Abstract: Masers and microwave amplifiers that can function in the continuous-wave mode at room temperature are provided. The maser system can include a diamond gain medium having nitrogen-vacancy centers, and a resonator can be disposed around the gain medium. The resonator can be disposed in a cavity box, and radiation (e.g., visible light) can be provided to the gain medium to cause emission of microwave radiation.

Abstract translation: 提供可在室温连续波模式下工作的放大器和微波放大器。 激光系统可以包括具有氮空位中心的金刚石增益介质，并且谐振器可以设置在增益介质周围。 谐振器可以设置在腔室中，并且可以向增益介质提供辐射（例如可见光）以引起微波辐射的发射。

公开(公告)号：US09590384B2

公开(公告)日：2017-03-07

申请号：US15151903

申请日：2016-05-11

Applicant: JEFFERSON SCIENCE ASSOCIATES, LLC

Inventor： Matthew Marchlik ,  George Herman Biallas

IPC: H01S3/0959 ,  H01S3/09 ,  H01S1/00

CPC classification number: H01S3/0903 ,  H01S1/005 ,  H05H7/04

Abstract: A method for managing the broad band microwave and TeraHertz (THz) radiation in a free electron laser (FEL) having a wiggler producing power in the electromagnetic spectrum. The method includes placement of broadband microwave and TeraHertz (THz) radiation absorbers on the upstream end of the wiggler. The absorbers dampen the bounced back, broad band microwave and THz radiation returning from the surfaces outside the nose of the cookie-cutter and thus preventing broadening of the electron beam pulse's narrow longitudinal energy distribution. Broadening diminishes the ultimate laser power from the wiggler. The broadband microwave and THz radiation absorbers are placed on either side of the slot in the cookie-cutter that shapes the wake field wave of the electron pulse to the slot shape of the wiggler chamber aperture. The broad band microwave and THz radiation absorber is preferably a non-porous pyrolytic grade of graphite with small grain size.

Abstract translation: 一种用于在电磁光谱中具有摆动器产生功率的自由电子激光器（FEL）中管理宽带微波和TeraHertz（THz）辐射的方法。 该方法包括将宽带微波和TeraHertz（THz）辐射吸收器放置在摆动器的上游端。 吸收器阻止从曲柄刀的鼻子外面的表面返回的反弹，宽带微波和THz辐射，从而防止电子束脉冲的窄纵向能量分布变宽。 拓宽从摆动机中减少最终的激光功率。 宽带微波和太赫兹辐射吸收器被放置在饼干切割器中的狭槽的任一侧，其将电子脉冲的尾流波形形成摆动槽孔的槽形。 宽带微波和太赫兹辐射吸收器优选是具有小晶粒尺寸的无孔热解级别的石墨。

公开(公告)号：US06301041B1

公开(公告)日：2001-10-09

申请号：US09376180

申请日：1999-08-17

Applicant: Minoru Yamada

Inventor： Minoru Yamada

IPC: H01S309

CPC classification number: H01S1/005

Abstract: Within a vacuum vessel, there are arranged an electron emitting part emitting an electron beam in a first direction, and an optical amplifying part amplifying incident light with the help of energy of the electron beam. The optical amplifying part includes a flat dielectric substrate made of a quartz glass, a rectilinear dielectric optical waveguide provided on the flat dielectric substrate, made of a dielectric material having a high refractive index and extending in said first direction, input and output optical waveguides provided on the dielectric substrate and being coupled with both ends of the dielectric optical waveguide, and a pair of electron beam converging electrodes arranged on respective sides of the dielectric optical waveguide. A velocity of the incident light is delayed during propagation through the dielectric optical waveguide, and a part of the incident light penetrates from the dielectric optical waveguide into the vacuum in the form of evanescent light. The electron beam is confined in a narrow region above the dielectric optical waveguide by means of an electric field produced by said electrodes, and the thus confined electron beam effectively interacts with an optical component of the evanescent light directed in the electron beam travelling direction to amplify the incident light.

Abstract translation: 在真空容器内，设置有沿第一方向发射电子束的电子发射部分和借助于电子束的能量放大入射光的光学放大部分。 光放大部件包括由石英玻璃制成的扁平电介质基片，设置在扁平电介质基片上的直线电介质光波导，由具有高折射率并沿所述第一方向延伸的介电材料制成，提供输入和输出光波导 并且与电介质光波导的两端耦合，以及配置在电介质光波导的各侧的一对电子束会聚电极。 在通过电介质光波导传播期间入射光的速度被延迟，并且入射光的一部分从电介质光波导以ev逝光的形式穿透到真空中。 电子束借助于所述电极产生的电场而被限制在电介质光波导上方的狭窄区域中，并且由此被约束的电子束有效地与指向电子束行进方向的渐逝光的光学部件相互作用以放大 事件光。

公开(公告)号：US4604551A

公开(公告)日：1986-08-05

申请号：US622672

申请日：1984-06-20

Applicant: Charles P. Moeller

Inventor： Charles P. Moeller

IPC: H01S1/00 ,  H01J25/00

CPC classification number: H01S1/005

Abstract: A cyclotron resonance maser system includes coaxial coupling between coaxial wave guides. Such coupling is provided between an outer coaxial waveguide through which a gyrotron electron beam passes in generating or amplifying microwaves and an inner coaxial waveguide terminating in an annular window. The coupling separates the microwaves from the electron beam before the collector region of the gyrotron so that the collector dimensions are not related to, and hence restricted by, the wavelength of the output microwaves. The particular preferred coupling includes substantially axial slots in the common wall between the respective waveguides which slots provide selective coupling between the waveguides in the desired modes and limiting mode conversion. The coupling is preferably between a TE.sub.On or TE.sub.ml mode in the outer input waveguide and a TE.sub.On' mode in the inner, output waveguide, n and n' being integers greater than 1. A preferred resonant cavity limits the generated microwaves to a TE.sub.ml mode. Partial reflection and feedback from the inner waveguide stabilizes the input mode.

Abstract translation: 回旋共振激光系统包括同轴波导之间的同轴耦合。 这种耦合设置在旋转管电子束通过其产生或放大微波的外部同轴波导与终止于环形窗口的内部同轴波导之间。 耦合器在回旋加速器的集电极区域之前将微波与电子束分开，使得集电极尺寸与输出微波的波长无关，因此受限于输出微波的波长。 特别优选的耦合包括相应波导之间的公共壁中的基本上轴向的槽，这些槽在期望的模式和限制模式转换之间提供波导之间的选择性耦合。 耦合优选在外部输入波导中的TEOn或TEml模式之间，并且内部，输出波导中的TEOn'模式，n和n'是大于1的整数。优选的谐振腔将所产生的微波限制为TEml模式。 来自内部波导的部分反射和反馈稳定了输入模式。

公开(公告)号：US4545056A

公开(公告)日：1985-10-01

申请号：US622324

申请日：1984-06-19

Applicant: Donald E. Wortman ,  Clyde A. Morrison ,  Richard P. Leavitt

Inventor： Donald E. Wortman ,  Clyde A. Morrison ,  Richard P. Leavitt

IPC: H01S1/00 ,  H01S3/0959 ,  H01S3/00

CPC classification number: H01S1/005 ,  H01S3/0959

Abstract: A diffraction radiation generator in which a ribbon electron beam is directed over a diffraction grating within an open resonator at a selected velocity to generate coherent radiation. After passing through the open resonator, the ribbon beam is directed through aligned slits in two or more conductive elements to a collector. Progressively negative voltages relative to the grating voltage can be applied to the elements and the collector to decelerate the electrons forming the ribbon beam and thus minimize heating of the collector and increase the operating efficiency of the generator. Also, the elements and the collector can be utilized to analyze the ribbon beam.

Abstract translation: 衍射辐射发生器，其中带状电子束以选定的速度被引导到开放谐振器内的衍射光栅上以产生相干辐射。 在通过开放谐振器之后，带状光束通过两个或更多个导电元件中的对齐的狭缝引导到收集器。 可以将相对于光栅电压的逐渐负的电压施加到元件和集电器上以减少形成带状束的电子，从而使收集器的加热最小化并且提高发电机的工作效率。 此外，元件和收集器可以用于分析带状束。

公开(公告)号：US06771684B2

公开(公告)日：2004-08-03

申请号：US10220541

申请日：2002-08-30

Applicant: Alan E. Hill

Inventor： Alan E. Hill

IPC: H01S322

CPC classification number: H01S1/005 ,  H01S3/036 ,  H01S3/038 ,  H01S3/0385 ,  H01S3/041 ,  H01S3/097 ,  H01S3/09702 ,  H01S3/09707 ,  H01S3/0971 ,  H01S3/1024 ,  H01S3/2232

Abstract: A compact molecular gas laser and circuit apparatus for same.

Abstract translation: 一种紧凑的分子气体激光器及其电路装置。

公开(公告)号：US4754196A

公开(公告)日：1988-06-28

申请号：US940145

申请日：1986-12-10

Applicant: John M. Burke ,  Wallace M. Manheimer

Inventor： John M. Burke ,  Wallace M. Manheimer

IPC: H01S1/00 ,  H01J25/00

CPC classification number: H01S1/005

Abstract: An apparatus and method for generating high power electro magnetic radiation in the millimeter or submillimeter range axial injection and adiabatic compression of an electron beam using large electric fields in an evacuated AXIOM (Axial Injection Orbitron Maser).

Abstract translation: 一种用于在毫米或亚毫米范围内产生高功率电磁辐射的装置和方法，其在抽真空AXIOM（轴向注射轨道激光器）中使用大电场对电子束进行轴向注射和绝热压缩。

公开(公告)号：US4376917A

公开(公告)日：1983-03-15

申请号：US163003

申请日：1980-06-25

Applicant: Achintya K. Ganguly ,  Kenneth L. Davis ,  Kwo R. Chu

Inventor： Achintya K. Ganguly ,  Kenneth L. Davis ,  Kwo R. Chu

IPC: H01S1/00 ,  H01S1/02

CPC classification number: H01S1/005

Abstract: A solid-state cyclotron maser for generating low power (1 watt or less) signals in the submillimeter frequency range (300 GHz-30,000 GHz) includes an accelerating region, a drift region, and a metal grid therebetween. Both regions are formed from semiconductor material, such as indium antimonide, having non-parabolic energy bands. The drift region is a thin disc having metallized outer surfaces, but includes an annular opening in the metal on the front side and a circular opening in the metal on the back side, and is grounded. A grid of metal rings is placed on the annular opening of the drift region. The accelerating region is a hollow cylinder having a metallized front surface. It couples to the drift region for covering the annular opening and the grid. A negative bias voltage is applied to the accelerating region and a magnetic field is applied to the maser at an angle to the axis of the maser. Electrons propagate in spiral trajectories through the accelerating region, grid and drift region. Movement of electrons within the non-parabolic energy bands of the semiconductor material causes changes in the effective mass of the electrons. Phase-bunching of electrons occurs and electrons radiate coherently. Energy is removed from the drift region at the opening on its back side.

Abstract translation: 用于在亚毫米频率范围（300GHz-30,000GHz）中产生低功率（1瓦特或更少）信号的固态回旋加速器激光器包括加速区域，漂移区域和它们之间的金属栅极。 两个区域都由具有非抛物线能带的半导体材料形成，例如锑化铟。 漂移区域是具有金属化的外表面的薄盘，但是在前侧的金属中包括环形开口，并且在后侧的金属中具有圆形开口，并且接地。 金属环的格栅放置在漂移区的环形开口上。 加速区域是具有金属化前表面的中空圆柱体。 它耦合到漂移区域以覆盖环形开口和电网。 向加速区域施加负偏置电压，并且以与激光器的轴线成一定角度向磁体施加磁场。 电子通过加速区域，网格和漂移区域以螺旋轨迹传播。 电子在半导体材料的非抛物线能带内的移动导致电子有效质量的变化。 发生电子相聚，电子相干地辐射。 能量在其背面的开口处从漂移区域移除。

公开(公告)号：US4122372A

公开(公告)日：1978-10-24

申请号：US840719

申请日：1977-10-11

Applicant: John E. Walsh

Inventor： John E. Walsh

IPC: H01J25/34 ,  H01S1/00 ,  H01J25/02

CPC classification number: H01S1/005 ,  H01J25/34

Abstract: A method and apparatus for producing high power, coherent microwave radiaton in which a beam of high speed (above 0.5 light speed) electrons are propagated through a linear path in a waveguide tube including low dielectric constant material adjacent the path so that the electromagnetic radiation is slowed in the material and the beam coupled to the radiation. The beam is focussed and guided to destabilize the guided electro-magnetic modes and to convert the beam energy into high power, high frequency, coherent microwave radiation.

Abstract translation: 一种用于产生高功率，相干微波辐射的方法和装置，其中高速光束（大于0.5光速）的电子通过包括邻近路径的低介电常数材料的波导管中的线性通路传播，使得电磁辐射为 在材料和放射线耦合的光束放慢。 光束被聚焦并被引导以使引导的电磁模式不稳定，并将光束能量转换成高功率，高频，相干微波辐射。

公开(公告)号：US3789257A

公开(公告)日：1974-01-29

申请号：US3789257D

申请日：1972-11-14

Applicant: US NAVY

Inventor： FRIEDMAN M ,  HERNDON M

IPC: H01J25/34 ,  H01S1/00 ,  H03B13/00 ,  H01J23/16 ,  H01J29/96

CPC classification number: H03B13/00 ,  H01J25/34 ,  H01S1/005

Abstract: A device for producing intense electromagnetic radiation from the interaction of an intense relativistic electron beam and a spatially modulated magnetic field in combination with a homogenous magnetic field region. The device is magnetically tuneable and capable of producing high level radiation of narrow or wide bandwidth over an extremely large range of wavelengths. The device produces microwave energy of the order of 108 to 109 watts in the 3 cm to 1 mm wavelength region with a secondary objective to produce electromagnetic energy of the order of 108 watts at wavelengths shorter than 1 mm.

Abstract translation: 一种用于从强相对论电子束和空间调制磁场与均匀磁场区域的相互作用产生强电磁辐射的装置。 该器件是磁性可调谐的，能够在极大的波长范围内产生窄或宽带宽的高电平辐射。 该设备在3cm至1mm波长区域产生108至109瓦特的微波能量，其次要目的是在短于1mm的波长处产生108瓦特的电磁能量。