公开(公告)号：US20100155476A1

公开(公告)日：2010-06-24

申请号：US12338291

申请日：2008-12-18

申请人： Gary Alexander Ross ,  Nart Daghestani

发明人： Gary Alexander Ross ,  Nart Daghestani

IPC分类号： G06K7/10

CPC分类号： H01S1/02 ,  G01N21/3581 ,  G06Q20/20 ,  G06Q20/382 ,  G07G1/0036

摘要： Systems and techniques for product identification using terahertz radiation detection. An area of interest is illuminated with radiation in the terahertz frequency range and terahertz radiation reflected from objects within the area of interest is detected and a detector signal based on the detected radiation is processed to generate identifying information for the objects. The generated identifying information may be compared against stored identifying information for products and the result of the comparison is used to select a product or group of products for which the comparison produces a match. Processing of the detector signal may generate a spectral signature characteristic of reflective and absorptive properties of an object under illumination, and the spectral signature may be compared with stored spectral signature information for products.

摘要翻译： 使用太赫兹辐射检测的产品识别系统和技术。 利用太赫兹频率范围内的辐射照射感兴趣的区域，并检测从感兴趣区域内的物体反射的太赫兹辐射，并且处理基于检测到的辐射的检测器信号以产生物体的识别信息。 可以将所生成的识别信息与存储的产品的识别信息进行比较，并且比较结果用于选择比较产生匹配的产品或产品组。 检测器信号的处理可以产生在照明下的物体的反射和吸收特性的光谱特征特征，并且可以将光谱特征与存储的产品光谱签名信息进行比较。

公开(公告)号：US07709798B2

公开(公告)日：2010-05-04

申请号：US11574983

申请日：2005-10-05

申请人： Lionel Canioni ,  Rysvan Maleck-Rassoul ,  Patrick Mounaix ,  Laurent Sarger

发明人： Lionel Canioni ,  Rysvan Maleck-Rassoul ,  Patrick Mounaix ,  Laurent Sarger

IPC分类号： G02F1/29

CPC分类号： G02F1/0126 ,  G01J11/00 ,  G02F1/19 ,  G02F2203/13 ,  H01S1/02 ,  H01S3/0057

摘要： This invention relates to a wide band optical gate in the terahertz domain (wavelengths in the far infrared). It comprises a first optical source (2) emitting a first beam (FTHz) in said terahertz domain, a first plate made of a semiconducting material (1) illuminated by said terahertz beam and a second optical source (3) emitting a second beam (FIR) at a wavelength capable of saturating the first plate (1) made of a semi-conducting material and making it reflective at terahertz wavelengths. This invention also relates to a system for measuring terahertz signals and to a terahertz generator. It is particularly applicable to systems for measuring terahertz signals and to terahertz generators.

摘要翻译： 本发明涉及太赫兹域中的宽带光栅（远红外波长）。 它包括在所述太赫兹域中发射第一光束（FTHz）的第一光源（2），由所述太赫兹光束照射的由半导体材料（1）制成的第一板和发射第二光束的第二光源（3） FIR），其能够使由半导体材料制成的第一板（1）饱和并使其在太赫兹波长处反射。 本发明还涉及一种用于测量太赫兹信号和太赫兹发生器的系统。 它特别适用于测量太赫兹信号和太赫兹发生器的系统。

公开(公告)号：US20100006780A1

公开(公告)日：2010-01-14

申请号：US12435797

申请日：2009-05-05

申请人： GRACE D. METCALFE ,  MICHAEL WRABACK ,  PAUL SHEN

发明人： GRACE D. METCALFE ,  MICHAEL WRABACK ,  PAUL SHEN

IPC分类号： H01L33/00

CPC分类号： H01S1/02 ,  G02F2/004 ,  G02F2002/006 ,  G02F2203/13

摘要： A method and device for generating terahertz radiation comprising a polar crystal material layer operative to emit terahertz radiation; the polar crystal material layer comprising a plurality of stacking faults; the stacking faults lying substantially perpendicular to the polar axis and forming boundaries at which the internal electric polarization terminates leading to charges accumulating at the boundaries, and creation of internal electric fields oriented along the polar axis; a pulsed radiation source for creating photogenerated carriers in the polar crystal material; whereby the photogenerated carriers accelerate in the internal electric fields associated with the termination of the internal electric polarization by the stacking faults to thereby generate terahertz radiation.

摘要翻译： 一种用于产生太赫兹辐射的方法和装置，包括可操作地发射太赫兹辐射的极性晶体材料层; 所述极性晶体材料层包括多个堆垛层错; 所述堆垛层错基本上垂直于所述极轴并且形成所述内部电极化终止的边界，导致积聚在所述边界处的电荷，以及产生沿所述极轴定向的内部电场; 用于在极性晶体材料中产生光生载流子的脉冲辐射源; 由此，光生载流子通过堆垛层错加剧与内部电极化终止有关的内部电场，从而产生太赫兹辐射。

公开(公告)号：US07619263B2

公开(公告)日：2009-11-17

申请号：US10696693

申请日：2003-10-29

申请人： Michael Shur ,  Victor Ryzhii ,  Remigijus Gaska

发明人： Michael Shur ,  Victor Ryzhii ,  Remigijus Gaska

IPC分类号： G02F2/00

CPC分类号： H01S1/02 ,  H01S3/094 ,  H01S3/1628 ,  H01S2302/02

摘要： A method of managing radiation having a frequency in the terahertz and/or microwave regions. The method comprises providing a semiconducting device having a two-dimensional carrier gas. Plasma waves are generated in the carrier gas using a laser pulse. The frequency of the plasma waves, and as a result, the generated radiation are adjusted using a voltage applied to the semiconducting device.

摘要翻译： 一种管理在太赫兹和/或微波区域中具有频率的辐射的方法。 该方法包括提供具有二维载气的半导体器件。 使用激光脉冲在载气中产生等离子体波。 等离子体波的频率，结果，使用施加到半导体器件的电压来调节所产生的辐射。

公开(公告)号：US07593099B2

公开(公告)日：2009-09-22

申请号：US11869312

申请日：2007-10-09

申请人： Hideyuki Ohtake ,  Toshiharu Sugiura

发明人： Hideyuki Ohtake ,  Toshiharu Sugiura

IPC分类号： G01N21/00

CPC分类号： G01N21/3581 ,  G01N21/958 ,  H01S1/02

摘要： A method of examining a configuration of a sample includes the step of irradiating a terahertz pulsed light, which possesses a wavelength to transmit through the sample, to at least two different portions of the sample, the step of detecting at least two electric field amplitude-time resolved waveforms of the terahertz pulsed light transmitted through the first and second portions of the object to be examined, and the step of examining the configuration of the sample based upon phase information obtained from the electric field amplitude-time resolved waveforms detected.

摘要翻译： 检查样品的结构的方法包括将具有波长透过样品的波长的太赫兹脉冲光照射到样品的至少两个不同部分的步骤，检测至少两个电场振幅 - 通过被检查物体的第一和第二部分透射的太赫兹脉冲光的时间分辨波形，以及根据检测到的电场振幅 - 时间分辨波形获得的相位信息来检查样本的结构的步骤。

公开(公告)号：US20090153948A1

公开(公告)日：2009-06-18

申请号：US11992801

申请日：2006-09-27

申请人： Junichiro Ichikawa

发明人： Junichiro Ichikawa

IPC分类号： G02F1/355 ,  H01S3/11 ,  H01S3/16

CPC分类号： G02F1/3534 ,  G02F2202/02 ,  G02F2203/13 ,  H01S1/02 ,  H01S3/0078 ,  H01S3/06754 ,  H01S3/1608 ,  H01S3/30

摘要： [Task] To provide the THz wave generator restricting increase in manufacturing cost or large size of the entirety of the apparatus and generating efficiently the several-W THz wave.[Means for Resolution] In a THz wave generator for generating a THz wave from a THz wave generating element by inputting a plurality of laser beams having different wavelengths to the THz wave generating element, at least one laser beam among the plurality of laser beams is formed into a pulse beam by the pulse generator and the pulse beam is amplified by an optical amplifier E and then the pulse beam is inputted to the THz wave generating element F. Preferably, the plurality of laser beams having different wavelengths are generated by inputting single wavelength beam to a multi wavelength generator from single mode laser light source and by inputting light waves having a plurality of wavelengths generated from the multi wavelength generator to wavelength selecting means.

摘要翻译： [任务]提供太赫兹波发生器限制制造成本的增加或整个装置的大尺寸并且有效地产生几W的太赫兹波。 [分辨装置]在用于通过向THz波发生元件输入具有不同波长的多个激光束从太赫兹波发生元件产生太赫兹波的太赫兹波发生器中，多个激光束中的至少一个激光束是 通过脉冲发生器形成脉冲光束，并且脉冲光束由光放大器E放大，然后将脉冲光束输入到太赫兹波发生元件F.优选地，具有不同波长的多个激光束通过输入单个 从单模激光光源到多波长发生器的波长光束，并且通过将具有从多波长发生器产生的多个波长的光波输入波长选择装置。

公开(公告)号：US07508578B2

公开(公告)日：2009-03-24

申请号：US11701284

申请日：2007-01-31

申请人： Yehiel Korenblit ,  Boris G. Tankhilevich

发明人： Yehiel Korenblit ,  Boris G. Tankhilevich

IPC分类号： H01S4/00 ,  H01S3/00

CPC分类号： H01S1/02

摘要： A magnon laser comprising: a magnon gain medium (MGM) that supports generation of nonequilibrium magnons, and a means for generating nonequilibrium magnons in the MGM further comprising a means for pumping nonequilibrium electrons into the MGM. Propagation of nonequilibrium electrons in the MGM causes generation of nonequilibrium magnons. The MGM is selected from the group consisting of: {ferromagnetic semiconductor; ferromagnetic insulator; and ferromagnetic material}. The merging of nonequilibrium magnons causes generation of terahertz waves.

摘要翻译： 一种激光激光器，包括：支持非平衡磁体的产生的磁能增益介质（MGM），以及用于在MGM中产生非平衡磁体的装置，还包括用于将非平衡电子泵送到MGM中的装置。 非均衡电子在MGM中的传播导致产生非平衡磁子。 MGM从由以下组成的组中选择：{ferromagnetic semiconductor; 铁磁绝缘子 和铁磁材料}。 非平衡磁通的合并引起太赫兹波的产生。

公开(公告)号：US07471449B2

公开(公告)日：2008-12-30

申请号：US11799937

申请日：2007-05-02

申请人： Yehiel Korenblit ,  Boris G. Tankhilevich

发明人： Yehiel Korenblit ,  Boris G. Tankhilevich

IPC分类号： H01S4/00 ,  H01S3/00

CPC分类号： H01S1/02

摘要： An apparatus for generation of Terahertz radiation comprising: (A) a Magnon Gain Medium (MGM), wherein the MGM supports generation of nonequilibrium magnons; and (B) at least one magnon mirror (MM). The nonequilibrium magnons are generated in the MGM. Interaction between nonequilibrium magnons leads to generation of Terahertz photons.

摘要翻译： 一种用于产生太赫兹辐射的装置，包括：（A）Magnon Gain Medium（MGM），其中MGM支持产生非平衡磁子; 和（B）至少一个磁反射镜（MM）。 非平衡磁体在米高梅产生。 非平衡磁体之间的相互作用导致太赫兹光子的产生。

公开(公告)号：US20080279227A1

公开(公告)日：2008-11-13

申请号：US11885651

申请日：2006-03-03

申请人： Masaaki Nakayama ,  Kohji Mizoguchi ,  Kiyomi Sakai ,  Shingo Saito

发明人： Masaaki Nakayama ,  Kohji Mizoguchi ,  Kiyomi Sakai ,  Shingo Saito

IPC分类号： H01S3/00

CPC分类号： H01S5/30 ,  H01S1/02 ,  H01S2302/02

摘要： In a method for generating a terahertz electromagnetic wave by using coherent phonons in a quantum structure, high density of coherent phonons acting as a radiation source of the terahertz electromagnetic wave are obtained by exciting the inter-band transitions in a quantum structure under the condition that the energy difference between two inter-band transitions in the quantum structure is resonated with the energy of the coherent phonons, and the terahertz electromagnetic wave is generated by the oscillatory polarizations of the coherent phonons. High density of coherent phonons may be created through the elementary excitation generated by using instantaneous laser pulses. A quantum well structure is effective as the quantum structure, and a scattering process of coherent phonon may be suppressed by confining coherent LO phonons in a well layer. Under the condition that the difference of energies between the heavy-hole and light-hole exitons in a quantum well structure agrees with the energy of LO phonons and both the exitons are created simultaneously, high density of coherent phonons may be generated. With this method, a terahertz electromagnetic wave can be effectively and strongly emitted from the coherent phonons.

摘要翻译： 在通过在量子结构中使用相干声子来产生太赫兹电磁波的方法中，通过在量子结构中激发带间跃迁来获得充当太赫兹电磁波的辐射源的高密度相干声子， 量子结构中的两个带间跃迁之间的能量差异与相干声子的能量共振，并且太赫兹电磁波由相干声子的振荡极化产生。 可以通过使用瞬时激光脉冲产生的基本激发来产生高密度的相干声子。 量子阱结构作为量子结构是有效的，并且可以通过将相干LO声子限定在阱层中来抑制相干声子的散射过程。 在量子阱结构中的重孔和光空穴之间的能量差异与LO声子的能量一致并且两者同时产生的条件下，可能产生高密度的相干声子。 通过这种方法，可以从相干声子有效强地发射太赫兹电磁波。

公开(公告)号：US07440178B2

公开(公告)日：2008-10-21

申请号：US11496889

申请日：2006-07-31

申请人： Yehiel Korenblit ,  Boris G. Tankhilevich

发明人： Yehiel Korenblit ,  Boris G. Tankhilevich

IPC分类号： H04B10/17 ,  H01S4/00

CPC分类号： H01S1/02

摘要： A method of tunable generation of terahertz radiation comprising: (A) providing a magnon gain medium; wherein the magnon gain medium supports generation of nonequilibrium magnons; (B) generating terahertz radiation in the magnon gain medium; and (C) tuning frequency of the terahertz radiation by causing changes in an external parameter. The substantial tuning of the frequency of the generated terahertz radiation can be achieved by applying an external magnetic field, and by causing changes in a value of the external magnetic field.

摘要翻译： 一种可调谐产生太赫兹辐射的方法，包括：（A）提供磁子增益介质; 其中所述磁能增益介质支持产生非平衡磁子; （B）在磁子增益介质中产生太赫兹辐射; 和（C）通过引起外部参数的改变来调节太赫兹辐射的调谐频率。 产生的太赫兹辐射的频率的实质调谐可以通过施加外部磁场和引起外部磁场的值的改变来实现。