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    TWO-DIMENSIONAL PHOTONIC CRYSTAL WITH AIR BRIDGE STRUCTURE AND MANUFACTURING METHOD FOR THE CRYSTAL
    4.
    发明公开
    TWO-DIMENSIONAL PHOTONIC CRYSTAL WITH AIR BRIDGE STRUCTURE AND MANUFACTURING METHOD FOR THE CRYSTAL 审中-公开
    随着对晶体空气桥结构和方法二维光子晶体

    公开(公告)号：EP1666940A4

    公开(公告)日：2007-10-17

    申请号：EP04772361

    申请日：2004-08-27

    申请人： UNIV KYOTO ,  TDK CORP

    发明人： HATSUDA RANKO ,  NODA SUSUMU ,  ASANO TAKASHI ,  TANAKA YOSHINORI ,  MIYAI EIJI

    IPC分类号： G02B6/12 ,  G02B6/122 ,  G02B6/13

    CPC分类号： G02B6/13 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/1225

    摘要： A two-dimensional photonic crystal, wherein a clad layer (32) is disposed on the lower side of a slab layer (31), and areas (35) having refraction factors different from that of the slab layer (31) are cyclically disposed in the slab layer (31). Also, the crystal comprises a spot defect (36) formed by the missing of a part of the areas (35). The spot defect (36) forms a resonator resonating light of a specified wavelength. An air bridge space (37) is formed in the specified area of the clad layer (32) to face the spot defect (36). Since the slab layer (31) is supported by the clad layer (32) in those areas other than the area in which the air bridge space (37) is formed, the mechanical strength of the two-dimensional photonic crystal is high. Since the air bridge space (37) is present under the spot defect (36), light can be easily entrapped in the spot defect (36) due to a difference in refraction factor between the slab layer (31) and air. Accordingly, the spot defect (36) forms the resonator having high performance.

    TARGET MATERIAL SENSOR USING PHOTONIC CRYSTAL AND DETECTION METHOD FOR TARGET MATERIAL
    6.
    发明公开
    TARGET MATERIAL SENSOR USING PHOTONIC CRYSTAL AND DETECTION METHOD FOR TARGET MATERIAL 审中-公开
    光子晶体发病靶材传感器与检测方法的靶材料

    公开(公告)号：EP1729111A4

    公开(公告)日：2009-04-08

    申请号：EP05727109

    申请日：2005-03-23

    申请人： UNIV KYOTO ,  PANASONIC ELEC WORKS CO LTD

    发明人： NODA SUSUMU ,  ASANO TAKASHI ,  TAKANO HITOMICHI

    IPC分类号： G01N21/35 ,  G01N21/3504 ,  G01N21/45 ,  G01N21/77 ,  G02B6/122

    CPC分类号： G02B6/1225 ,  B82Y20/00 ,  G01N21/3504 ,  G01N21/774 ,  G01N21/7746 ,  G01N2021/7776

    摘要： A target material sensor using a photonic crystal being high in sensitivity to a target material to be detected and capable of being downsized, and a detection method for a target material. The sensor comprises an electromagnetic wave generating source for supplying an electromagnetic wave, a photonic sensor element and a detector. The photonic sensor element comprises a sensor waveguide having a photonic crystal structure to introduce an electromagnetic wave, and a sensor resonator coupled electro-magnetically with the sensor waveguide to resonate an introduced electromagnetic wave at a specific wavelength, the characteristics of an electromagnetic wave emitted from the sensor resonator being changed when the sensor resonator is exposed to an atmosphere containing a target material. The detector recognizes the intensity change of an electromagnetic wave on receiving it emitted from the sensor resonator, and determines the concentration of a target material from this intensity change to output a concentration-indicating signal.

    TWO-DIMENSIONAL PHOTONIC CRYSTAL RESONATOR
    7.
    发明公开
    TWO-DIMENSIONAL PHOTONIC CRYSTAL RESONATOR 有权
    ZWEIDIMENSIONALER PHOTONISCHER KRISTALLRESONATOR

    公开(公告)号：EP1666939A4

    公开(公告)日：2006-09-13

    申请号：EP04772076

    申请日：2004-08-24

    申请人： UNIV KYOTO ,  SUMITOMO ELECTRIC INDUSTRIES

    发明人： NODA SUSUMU ,  ASANO TAKASHI ,  SONG BONG-SHIK ,  AKAHANE YOSHIHIRO

    IPC分类号： G02B6/12 ,  G02B6/122

    CPC分类号： B82Y20/00 ,  G02B6/1225

    摘要： The present invention intends to provide a two-dimensional photonic crystal resonator having a high Q-value. The slab-shaped body 21 is provided with cyclically arranged holes 22. The body 21 is divided into three areas 31-33 with the holes 22 arranged with cycle distances of a 1 in area 31 and a 2 in areas 32 and 33, which is smaller than a 1 . A waveguide 23 passing through the three areas is formed by linearly eliminating the holes 22. The waveguide 23 thus formed can propagate rays of light within a wavelength band that depends on the cycle distance of the holes 22. The cycle distance of the holes in the area 31 differs from that of the areas 32 and 33, and the wavelength band of the light propagating through the waveguide accordingly differs. Therefore, a ray of light whose wavelength is within the waveguide transmission wavelength band of the area 31 but outside of the waveguide transmission wavelength band of the other areas 32 and 33 will be confined within the waveguide of the area 31 and resonate therein. Thus, the waveguide in the area 31 functions as a resonator.

    摘要翻译： 实现高Q值的二维光子晶体谐振器。 空隙（22）周期性排列在板状体（21）中。 主体21被分割为三个区域31-33，并且在区域31中将空隙22的配置周期设定为a1，在区域32,33中将a2设定为比a1小的a2， 。 此外，通过线性去除空隙（22）来提供穿过三个区域的波导（23）。 因此，依赖于空隙（22）周期的波段中的光可以在波导（23）上传播。 由于空隙的周期不同，在波导上传播的光的波长带在区域（31）和区域（32,33）之间不同。 因此，包括在区域（31）的波导传输波段中但未包含在区域（32,33）的波导传输波段中的波长的光被限制在区域（31）的波导中并且谐振 。 区域（31）的波导因此用作谐振器。

    PHOTONIC CRYSTAL LASER
    8.
    发明公开
    PHOTONIC CRYSTAL LASER 审中-公开
    用水晶光子激光

    公开(公告)号：EP1879272A4

    公开(公告)日：2008-06-18

    申请号：EP05737342

    申请日：2005-04-28

    申请人： ROHM CO LTD

    发明人： NODA SUSUMU ,  IMADA MASAHIRO ,  OHNISHI DAI

    IPC分类号： H01S5/12

    CPC分类号： H01S5/0425 ,  B41J2/45 ,  H01S5/06243 ,  H01S5/105 ,  H01S5/18 ,  H01S2301/18

    摘要： A laser device which allows a high-output laser beam to scan at high speed without using a mechanical scanning mechanism. A photonic crystal laser comprising an active layer (21) and a two-dimensional photonic crystal layer (23) between upper electrodes (33) and a lower electrode (27), the plurality of upper electrodes (33) being arranged linearly. A current is introduced via one or a plurality of adjacent upper electrodes (33). Accordingly, light generated at the active layer (21) is intensified by being diffracted at the two-dimensional photonic crystal layer (23), whereby a strong laser beam is emitted from the surrounding of a current-introducing upper electrode (33) toward the outside. A laser beam is allowed to scan in the arranging direction of upper electrodes by sequentially switching from one current-introducing upper electrode to another. Since the switching can be made electrically, a laser beam is allowed to scan at high speed without using a mechanical scanning mechanism.