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    THERMAL-RADIATION LIGHT SOURCE AND TWO-DIMENSIONAL PHOTONIC CRYSTAL USED THEREIN
    1.
    发明公开
    THERMAL-RADIATION LIGHT SOURCE AND TWO-DIMENSIONAL PHOTONIC CRYSTAL USED THEREIN 审中-公开
    德国维多利亚州威尔士革命者光子学家克里斯托尔（WISRMESTRAHLUNGSLICHTQUELLE UND DARIN VERWENDETER ZWEIDIMENSIONALER PHOTONISCHER KRISTALL

    公开(公告)号：EP3113304A4

    公开(公告)日：2017-03-15

    申请号：EP15754718

    申请日：2015-02-24

    申请人： JAPAN SCIENCE & TECH AGENCY

    发明人： NODA SUSUMU ,  INOUE TAKUYA ,  ASANO TAKASHI ,  DE ZOYSA MENAKA

    IPC分类号： H01S5/04 ,  H01S5/00 ,  H01S5/02 ,  H01S5/024 ,  H01S5/042 ,  H01S5/10 ,  H01S5/12 ,  H01S5/18 ,  H01S5/30 ,  H01S5/34

    CPC分类号： H01S5/18319 ,  H01S5/0014 ,  H01S5/0207 ,  H01S5/02453 ,  H01S5/02461 ,  H01S5/0421 ,  H01S5/0422 ,  H01S5/0425 ,  H01S5/0428 ,  H01S5/105 ,  H01S5/18316 ,  H01S5/3086 ,  H01S5/309 ,  H01S5/3402 ,  H01S5/3419 ,  H01S2302/02

    摘要： The present invention provides a thermal emission source capable of switching the intensity of light at a high response speed similarly to a photoelectric conversion element. A thermal emission source 10 includes: a two-dimensional photonic crystal 12 including a slab 11 in which an n-layer 112 made of an n-type semiconductor, a quantum well structure layer 114 having a quantum well structure, and a p-layer 111 made of a p-type semiconductor are stacked in the mentioned order in the thickness direction, wherein modified refractive index areas (air holes 121) whose refractive index differs from the refractive indices of the n-layer 112, the p-layer 111 and the quantum well structure layer 114 are cyclically arranged in the slab 11 so as to resonate with a specific wavelength of light corresponding to a transition energy between the subbands in a quantum well in the quantum well structure layer 114; and a p-type electrode 131 and an n-type electrode 132 for applying, to the slab 11, a voltage which is negative on the side of the p-layer 111 and positive on the side of the n-layer 112.

    摘要翻译： 本发明提供一种与光电转换元件类似的能够以高响应速度切换光强度的热发射源。 热发射源10包括：二维光子晶体12，其包括其中由n型半导体制成的n层112，具有量子阱结构的量子阱结构层114和p层 在厚度方向上按顺序堆叠由p型半导体制成的111，其中折射率不同于n层112，p层111和p层111的折射率的改性折射率区域（空气孔121） 量子阱结构层114循环地布置在板坯11中，以便与量子阱结构层114中的量子阱中的子带之间的转变能相对应的特定波长的光共振; 以及p型电极131和n型电极132，用于向板坯11施加在p层111侧为正的电压，在n层112的一侧为正。

    THERMAL RADIATION LIGHT SOURCE
    3.
    发明公开
    THERMAL RADIATION LIGHT SOURCE 审中-公开
    热辐射电光源

    公开(公告)号：EP2966773A4

    公开(公告)日：2016-04-13

    申请号：EP14761195

    申请日：2014-02-28

    申请人： JAPAN SCIENCE & TECH AGENCY

    发明人： NODA SUSUMU ,  SHIBAHARA TATSUYA ,  DE ZOYSA MENAKA ,  ASANO TAKASHI ,  KITANO KEISUKE ,  SUZUKI KATSUYOSHI ,  INOUE TAKUYA ,  ISHIZAKI KENJI

    IPC分类号： H02S10/30 ,  H01K1/04 ,  H01L31/054

    CPC分类号： H02S10/30 ,  G02B1/005 ,  H01K1/04 ,  H01L31/054 ,  H01L31/055 ,  Y02E10/52

    摘要： The present invention provides a thermal emission source that allows a wider range of material choices than those of conventional techniques, so that light having a desired peak wavelength can easily be obtained. A thermal emission source 10 includes a thermo-optical converter composed of an optical structure in which a refractive index distribution is formed in a member 11 made of an intrinsic semiconductor so as to resonate with light of a shorter wavelength than a wavelength corresponding to a bandgap of the intrinsic semiconductor. When heat is externally supplied to the thermo-optical converter, light having a spectrum in a band of shorter wavelengths than a cutoff wavelength is produced by interband absorption in the intrinsic semiconductor, and light of a resonant wavelength » r in the wavelength band, the light causing resonance in the optical structure, is selectively intensified and emitted as thermal emission. In the present invention, an intrinsic semiconductor that provides a wide range of material choices is used, so that a thermal emission source that produces narrow-band light having a desired peak wavelength can easily be obtained.

    ELECTROMAGNETIC WAVE FREQUENCY FILTER
    5.
    发明公开
    ELECTROMAGNETIC WAVE FREQUENCY FILTER 审中-公开
    电磁波频率滤波器

    公开(公告)号：EP1662281A4

    公开(公告)日：2007-12-19

    申请号：EP04772243

    申请日：2004-08-26

    申请人： JAPAN SCIENCE & TECH AGENCY ,  MATSUSHITA ELECTRIC WORKS LTD

    发明人： NODA SUSUMU ,  ASANO TAKASHI ,  SONG BONG-SHIK ,  TAKANO HITOMICHI

    IPC分类号： G02B6/12 ,  G02B6/122 ,  G02F1/01 ,  G02F1/313 ,  H01P1/213 ,  H01P3/16

    CPC分类号： G02B6/12007 ,  B82Y20/00 ,  G02B6/1225 ,  G02B2006/12164 ,  H01P1/2005

    摘要： An electromagnetic wave of a predetermined frequency equal to the resonance frequency of a resonator (41) travels form an input waveguide (2) through the resonator (41) into an output waveguide (31) and is emitted from a drop port (P31). A reflective portion (211) disposed on the input waveguide side and a reflective portion (311) disposed on the output waveguide side reflect an electromagnetic wave of the predetermined frequency. The following relations are satisfied. Qinb/(1-cosθ1)«Qv Qinb/(1-cosθ1)=Qinr/(1-cosθ2) θ1, θ2≠2Nπ(N=0, 1,···) where θ1 is the variation of phase of the electromagnetic wave reflected by the reflective portion (211) on the input waveguide side, θ2 is the variation of phase of the electromagnetic wave reflected by the reflective portion (311) on the output waveguide side, Qinb is the Q value between the resonator (41) and the input waveguide (2), Qinr is the Q value between the resonator (41) and the output waveguide (3), and Qv is the Q value between the resonator (41) and the free space.

    PHOTONIC CRYSTAL LASER
    6.
    发明公开
    PHOTONIC CRYSTAL LASER 审中-公开

    公开(公告)号：EP2544320A4

    公开(公告)日：2017-11-29

    申请号：EP11750620

    申请日：2011-03-01

    申请人： JAPAN SCIENCE & TECH AGENCY

    发明人： NODA SUSUMU ,  KITAMURA KYOKO ,  KUROSAKA YOSHITAKA ,  SAKAI KYOSUKE

    IPC分类号： H01S5/10 ,  H01S5/12 ,  H01S5/18

    CPC分类号： H01S5/105 ,  B82Y20/00 ,  H01S5/0267 ,  H01S5/1071 ,  H01S5/187 ,  H01S5/34333 ,  H01S2301/14 ,  H01S2301/203

    摘要： The present invention is aimed at providing a photonic crystal laser capable of producing a radially-polarized halo-shaped laser beam having a smaller width than that of conventional beams. A photonic crystal laser 10 includes: an active layer 11; a ring-shaped photonic crystal 123 including a plate-shaped base body 121 on one side of the active layer 11, the base body 121 having a number of modified refractive index areas 122 of the same shape, the modified refractive index areas 122 having a refractive index different from that of the base body 121 and being periodically arranged in the circumferential direction of a ring, and each of the modified refractive index areas 122 being asymmetrically shaped with respect to an axis extending through the center of the modified refractive index area 122 in the radial direction of the ring; a first electrode 131 and a second electrode 132 facing each other across the active layer 11 and the ring-shaped photonic crystal 123; and a window provided in the second electrode 141, the window being capable of allowing passage of a laser light generated from the ring-shaped photonic crystal 123.

    TWO-DIMENSIONAL PHOTONIC CRYSTAL SURFACE-EMITTING LASER
    7.
    发明公开
    TWO-DIMENSIONAL PHOTONIC CRYSTAL SURFACE-EMITTING LASER 有权
    二维表面发射激光器的光子晶体

    公开(公告)号：EP1610427A4

    公开(公告)日：2006-10-25

    申请号：EP04722669

    申请日：2004-03-23

    申请人： JAPAN SCIENCE & TECH AGENCY

    发明人： NODA SUSUMU ,  YOKOYAMA M ,  SEKINE K ,  MIYAI EIJI

    IPC分类号： G02B6/12 ,  H01S5/10 ,  H01S5/18 ,  H01S5/183

    CPC分类号： H01S5/18355 ,  H01S5/105 ,  H01S5/18338

    摘要： A two-dimensional photonic crystal surface-emitting laser in which a photonic crystal periodic structure body (21), comprising an active layer (a first medium) (12) that emits light by carrier injection or a second medium disposed near it and being different in refractive index, is arranged at a two-dimensional period. The lattice structure of a photonic crystal (20) is a tetragonal lattice or an orthogonal lattice, and is provided with translational symmetry but not with rotational symmetry. Or, the lattice structure of a photonic crystal (20) is a tetragonal lattice or an orthogonal lattice, and is either p1, pm, pg or cm according to two-dimensional pattern classification method. Most preferably, the shape of a lattice point is almost triangular.

    TWO-DIMENSIONAL PHOTONIC CRYSTAL OPTICAL MULTIPLEXER/DEMULTIPLEXER UTILIZING BOUNDARY RFLECTION
    8.
    发明公开
    TWO-DIMENSIONAL PHOTONIC CRYSTAL OPTICAL MULTIPLEXER/DEMULTIPLEXER UTILIZING BOUNDARY RFLECTION 有权
    二维光子晶体光学复用器/解复用器，使用边界反射

    公开(公告)号：EP1569017A4

    公开(公告)日：2006-02-15

    申请号：EP03777322

    申请日：2003-12-05

    申请人： JAPAN SCIENCE & TECH AGENCY

    发明人： NODA SUSUMU ,  ASANO TAKASHI

    IPC分类号： G02B6/12 ,  G02B6/122

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

    摘要： An in-plane heterostructure two-dimensional photonic crystal optical multiplexer/demultiplexer in which voids (32) are arranged periodically at a period different for each band gap region (301, 302, ...), a waveguide (33) is formed by removing the voids (32) linearly, and a spot defect (341, 342, ...) is formed in each band gap region. Demultiplexing efficiency of light being taken out from a spot defect can be enhanced by introducing a light passed through the spot defect and reflected off a band gap region boundary (351, 352, ...) to a specified spot defect.

    TWO-DIMENSIONAL PHOTONIC CRYSTAL POINT DEFECT INTERFERENCE OPTICAL RESONATOR AND OPTICAL REFLECTOR
    9.
    发明公开
    TWO-DIMENSIONAL PHOTONIC CRYSTAL POINT DEFECT INTERFERENCE OPTICAL RESONATOR AND OPTICAL REFLECTOR 审中-公开
    POINT缺陷错误光谐振器和光反射WITH二维光子晶体

    公开(公告)号：EP1489443A4

    公开(公告)日：2005-09-07

    申请号：EP03715449

    申请日：2003-03-26

    申请人： JAPAN SCIENCE & TECH AGENCY

    发明人： NODA SUSUMU ,  ASANO TAKASHI

    IPC分类号： G02B5/18 ,  G02B6/12 ,  G02B6/122 ,  G02B6/34 ,  H01S3/06 ,  H01S3/08 ,  H01S5/10

    CPC分类号： B82Y20/00 ,  G02B6/12007 ,  G02B6/122 ,  G02B6/1225 ,  H01S5/10 ,  H01S5/105

    摘要： A two-dimensional photonic crystal optical resonator and an optical reflector being high in light retrieving efficiency and obtained by the following steps. A two-dimensional photonic crystal is produced by periodically arranging, in a slab-like main body (11), regions (holes) (12) each having a refractive index different from that of the main body (11). A waveguide (13) is formed in the crystal by providing holes (12) non-linearly. Two holes (12) a distance L apart in the length-wise direction of the waveguide are enlarged to form two acceptor type point defects (14). A distance L properly selected in this configuration can suppress light reflection and transmission at point defects (14) to allow us to efficiently retrieve light resonating at point defects (14). A properly selected distance L can increase a light reflectance at point defects (14) to allow applications as an optical resonator for allowing light to resonate between two point defects (14) and as an optical reflector for allowing light to reflect at two point defects (14).