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100 条记录 (耗时 0.016 秒)

    LASER DEVICE
    61.
    发明授权
    LASER DEVICE 有权
    激光器件

    公开(公告)号：EP2198491B1

    公开(公告)日：2011-03-30

    申请号：EP08828581.2

    申请日：2008-08-27

    申请人： Canon Kabushiki Kaisha

    发明人： SEKIGUCHI, Ryota

    IPC分类号： H01S1/02 ,  H01S5/227 ,  H01S5/34 ,  H01S5/10

    CPC分类号： H01S1/02 ,  B82Y20/00 ,  H01S5/1046 ,  H01S5/20 ,  H01S5/3402

    摘要： Provided is a long wavelength laser of which the operating point is stabilized and the laser oscillation is stabilized. The long wavelength laser comprises a resistor element provided to a portion where the surface current is maximum in a surface plasmon waveguide to stabilize a potential difference between a first cladding and a second cladding in the surface plasmon waveguide.

    Method and apparatus for automated product identification in point of sale applications using terahertz radiation
    64.
    发明公开
    Method and apparatus for automated product identification in point of sale applications using terahertz radiation 审中-公开
    用于使用太赫兹辐射在产品销售的应用程序自动识别的方法和装置

    公开(公告)号：EP2199779A1

    公开(公告)日：2010-06-23

    申请号：EP09170844.6

    申请日：2009-09-21

    申请人： NCR Corporation

    发明人： Ross, Gary ,  Daghestani, Nart

    IPC分类号： G01N21/35 ,  G07G1/00 ,  H01S1/02

    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 are described. An area of interest (139) is illuminated with radiation in the terahertz frequency range and terahertz radiation reflected from objects (140) 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 (140). 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 obj ect (140) under illumination, and the spectral signature may be compared with stored spectral signature information for products.

    摘要翻译： 用于使用太赫兹辐射检测产品识别系统和技术进行了描述。 的兴趣（139）的面积与在从感兴趣检测并基于检测到的辐射的检测器信号的区域内的对象（140）反射的太赫频率范围和太赫兹辐射辐射照射进行处理，以产生用于所述对象识别信息 （140）。 将所生成的识别信息可以被存储针对标识为产品和信息的比较的结果用于选择用于其中比较产生一个匹配的产品的产品或组相比。 检测器信号的处理可以产生照明下的一个目的（140）反射和吸收特性的光谱特征特性，可对光谱标志被存储有用于产品的光谱特征信息进行比较。

    ELECTRICALLY TUNABLE TERAHERTZ LASER OSCILLATION DEVICE
    65.
    发明公开
    ELECTRICALLY TUNABLE TERAHERTZ LASER OSCILLATION DEVICE 有权
    电动可调激光器太赫兹振荡

    公开(公告)号：EP2067217A1

    公开(公告)日：2009-06-10

    申请号：EP07851121.9

    申请日：2007-12-20

    申请人： Canon Kabushiki Kaisha

    发明人： SEKIGUCHI, Ryota ,  OUCHI, Toshihiko

    IPC分类号： H01S1/02 ,  H01S5/0625 ,  H01S5/34 ,  H01S5/227 ,  H01S5/30

    CPC分类号： H01S1/02 ,  B82Y20/00 ,  H01S5/06255 ,  H01S5/06256 ,  H01S5/2213 ,  H01S5/227 ,  H01S5/3027 ,  H01S5/3031 ,  H01S5/3402 ,  H01S5/3422

    摘要： To provide an oscillation device having a long oscillation wavelength (THz) in which wavelength variable width is relatively broad and wavelength sweep rate is relatively high. An oscillation device includes a gain medium (103) having a gain with respect to an electromagnetic wave to be oscillated, cavity structures (104, 105) for resonating the electromagnetic wave, and energy injection means (121, 122A) and for injecting pumping energy into the gain medium. The gain medium is sandwiched between a first negative permittivity medium (102, 112) and a second magnetic permittivity medium (101, 111) each of which real part of permittivity with respect to the electromagnetic wave is negative. Electric field application means (122B) is provided for at least one of the first negative permittivity medium and the second negative permittivity medium to apply an electric field for changing a depletion region formed at a boundary part with the gain medium.

    Laser device
    67.
    发明公开
    Laser device 审中-公开
    激光装置

    公开(公告)号：EP1863140A1

    公开(公告)日：2007-12-05

    申请号：EP07107334.0

    申请日：2007-05-02

    申请人： CANON KABUSHIKI KAISHA

    发明人： Sekiguchi, Ryota ,  Ouchi, Toshihiko

    IPC分类号： H01S5/10 ,  H01S5/227 ,  H01S5/34 ,  H01S5/12 ,  H01S5/343

    CPC分类号： H01S5/227 ,  B82Y20/00 ,  H01S1/02 ,  H01S5/1046 ,  H01S5/12 ,  H01S5/3402 ,  H01S5/343 ,  H01S2302/02

    摘要： A laser device including a gain medium that has a gain, a waveguide for propagating an electromagnetic wave, and a resonant structure comprised of the waveguide. The gain medium 103 extends in the propagation direction, and is sandwiched, at the top and bottom surfaces in the thickness direction thereof, between a first cladding and a second cladding of negative dielectric constant media. The gain medium is provided with a lateral structure adjacent to at least one of the side surfaces thereof in the width direction perpendicular to the propagation direction and the thickness direction. The lateral structure includes a positive dielectric constant medium which is sandwiched, at its top and bottom surfaces in the thickness direction thereof, between the negative dielectric constant media. The waveguide is comprised of the gain medium 103, the lateral structure, the first cladding and the second cladding.

    摘要翻译： 一种激光装置，其包括具有增益的增益介质，用于传播电磁波的波导以及由该波导构成的谐振结构。 增益介质103在传播方向上延伸，并且在负介电常数介质的第一包层和第二包层之间在其厚度方向上的顶表面和底表面处被夹置。 增益介质在与传播方向和厚度方向垂直的宽度方向上具有与其至少一个侧面相邻的横向结构。 横向结构包括正介电常数介质，其在其负载介电常数介质之间沿其厚度方向的顶表面和底表面夹在中间。 波导由增益介质103，横向结构，第一包层和第二包层组成。

    KOHÄRENTE TERAHERTZ-STRAHLUNGSQUELLE
    68.
    发明公开
    KOHÄRENTE TERAHERTZ-STRAHLUNGSQUELLE 有权
    相干太赫兹辐射SOURCE

    公开(公告)号：EP1825530A1

    公开(公告)日：2007-08-29

    申请号：EP05787095.8

    申请日：2005-09-09

    申请人： Forschungszentrum Dresden - Rossendorf e.V.

    发明人： DEKORSY, Thomas ,  HELM, Manfred ,  DREYHAUPT, André ,  WINNERL, Stephan

    IPC分类号： H01L49/00 ,  G01N21/35

    CPC分类号： H01S1/02 ,  G01N21/3581 ,  H01L49/00 ,  H01S2302/02

    摘要： The aim of the invention is to create a coherent THz radiation source in the frequency range between 10 GHz and 50 THz, said radiation source being suitable for areas exceeding 100 µm2, while the electric field in the semiconductor substrate of the THz radiation source can be provided with values of more than 10 kV/cm and can operate the radiation source at voltages of less than 100 V. Said aim is achieved by two metal contacts (2) that are periodically arranged on a semiconductor substrate (1) as well as an additional periodic structure (4) which allows the semiconductor substrate to be optically excited only in the areas in which the electric field applied via the metal contacts runs in the same direction.