公开(公告)号：US08704253B2

公开(公告)日：2014-04-22

申请号：US10550653

申请日：2004-03-19

申请人： Susumu Noda ,  Takashi Asano ,  Masayuki Fujita ,  Hiroshi Ohata

发明人： Susumu Noda ,  Takashi Asano ,  Masayuki Fujita ,  Hiroshi Ohata

IPC分类号： H01L33/00

CPC分类号： H01L51/5275 ,  H01L51/0035 ,  H01L51/0036 ,  H01L51/0037 ,  H01L51/0038 ,  H01L51/0051 ,  H01L51/0052 ,  H01L51/0059 ,  H01L51/007 ,  H01L51/5262

摘要： In conventional organic EL light-emitting devices, the ITO used for a transparent electrode has a refractive index of about 2.0 larger than the refractive index of 1.5 of a transparent glass substrate. As a result, the mode of most of light traveling from the transparent electrode toward the glass substrate is the transparent electrode guided mode, and no light is emitted from the transparent electrode toward the glass substrate. According to the invention, the light extraction efficiency of conventional light-emitting devices such as organic EL light-emitting devices is improved by using mode conversion means so as to solve the problem that conventional light-emitting devices such as organic EL light-emitting devices have low light extraction efficiencies. A light-emitting device of the invention comprises a light-emitting layer on a substrate and mode conversion means for converting the mode from the guided mode into an emission mode. The mode conversion means is provided in the substrate, in the light-emitting layer, or at the interface between the substrate and the light-emitting layer.

摘要翻译： 在传统的有机EL发光器件中，用于透明电极的ITO具有比透明玻璃衬底的折射率1.5大约2.0的折射率。 结果，从透明电极朝向玻璃基板行进的大部分光的模式是透明电极引导模式，并且没有光从透明电极朝向玻璃基板发射。 根据本发明，通过使用模式转换装置来提高诸如有机EL发光器件的常规发光装置的光提取效率，以解决诸如有机EL发光装置之类​​的常规发光装置的问题 具有低光提取效率。 本发明的发光装置包括在基板上的发光层和用于将模式从导模转换为发射模式的模式转换装置。 模式转换装置设置在基板，发光层中或基板与发光层之间的界面处。

公开(公告)号：US07590325B2

公开(公告)日：2009-09-15

申请号：US10507889

申请日：2003-03-26

申请人： Susumu Noda ,  Masamitu Mochizuki ,  Takashi Asano

发明人： Susumu Noda ,  Masamitu Mochizuki ,  Takashi Asano

IPC分类号： G02B6/10

CPC分类号： G02B6/1225 ,  B82Y20/00

摘要： The present invention provides an optical multiplexer/demultiplexer that can be smaller in size and higher in Q-factor or efficiency. This object is achieved by the following construction. In a slab-shaped body 11, low refractive index areas 12 having a refractive index lower than that of the material of the body 11 are periodically arranged to construct a two-dimensional photonic crystal, in which a waveguide 13 is formed by not boring holes 12 linearly. A donor type cluster defect 14 is formed by not boring holes 12 at two ore more lattice points located adjacent to the waveguide 13. With this construction, only a specific wavelength of light included in the light propagating through the waveguide 13 resonates at the donor type cluster 14, and the light thus trapped is released to the outside (demultiplexing). Conversely, only a specific wavelength of light may be introduced through the donor type cluster defect 14 into the waveguide 13 (multiplexing).

摘要翻译： 本发明提供了一种光复用器/解复用器，其尺寸可以更小并且Q因子或效率更高。 该目的通过以下结构实现。 在板状体11中，周期性地布置折射率低于主体11的折射率的低折射率区域12，以构成二维光子晶体，其中通过不钻孔形成波导13 12线性。 供体型簇缺陷14通过在与波导13相邻的两个多个晶格点处不钻孔12而形成。利用这种结构，包含在通过波导13传播的光中的特定波长的光在施主型 簇14，并且被捕获的光被释放到外部（解复用）。 相反，只有特定波长的光可以通过供体型簇缺陷14引入波导13（复用）。

公开(公告)号：US07397994B2

公开(公告)日：2008-07-08

申请号：US10537119

申请日：2003-12-05

申请人： Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka

发明人： Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka

IPC分类号： G02B6/10

CPC分类号： B82Y20/00 ,  G02B6/12002 ,  G02B6/1225 ,  G02F2202/32

摘要： The present invention aims to provide a two-dimensional photonic crystal having an optical resonator, which allows the control of the front/back emission ratio of light. To achieve this object, a refractive index member made of a material having a refractive index different from that of air is mounted on a two-dimensional photonic crystal having a body in which holes are periodically arranged. In this construction, the body and the refractive index member cooperatively function as an optical resonator located at the position where the refractive index member is mounted. The light emitted from this optical resonator is stronger on the side having a higher refractive index, i.e. on the side where the refractive index member is mounted. Accordingly, the light emitted from the side where the refractive index member is mounted is stronger than the light emitted from the other side. The ratio of the emission intensity of the two rays of light and, i.e. the front/back emission ratio, can be controlled by changing the material, shape and/or size of the refractive index member.

摘要翻译： 本发明旨在提供一种具有光谐振器的二维光子晶体，其允许控制光的前/后发射比。 为了实现该目的，由具有与空气的折射率不同的折射率的材料制成的折射率构件安装在具有周期性布置有孔的主体的二维光子晶体上。 在这种结构中，主体和折射率构件协调地用作位于折射率构件安装位置的光学谐振器。 从该光谐振器发射的光在具有较高折射率的一侧，即在折射率构件安装的一侧更强。 因此，从安装有折射率构件的一侧发射的光比从另一侧发射的光更强。 可以通过改变折射率构件的材料，形状和/或尺寸来控制两束光的发射强度的比例，即前/后发射比。

公开(公告)号：US20080145012A1

公开(公告)日：2008-06-19

申请号：US12004029

申请日：2007-12-20

申请人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

发明人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

IPC分类号： G02B6/10

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

摘要： The present invention intends to provide a two-dimensional photonic crystal having a high level of mechanical strength and functioning as a high-efficiency resonator. The two-dimensional photonic crystal according to the present invention includes a slab layer 31 under which a clad layer 32 is located. In the slab layer 31, areas 35 having a refractive index different from that of the slab layer 31 are cyclically arranged to create a two-dimensional photonic crystal. A portion of the cyclic arrangement of the areas 35 are omitted to form a point-like defect 36. This defect 36 functions as a resonator at which a specific wavelength of light resonates. An air-bridge cavity 37 facing the point-like defect 36 is formed over a predetermined range of the clad layer 32. In this construction, the clad layer 32 supports the slab layer 31 except for the range over which the air-bridge space 37 is formed. Therefore, the two-dimensional photonic crystal has a high level of mechanical strength. The presence of the air-bridge space 37 under the point-like defect 36 makes it easy to confine light at the point-like defect 36 by the difference in the refractive index between the slab layer 31 and the air. Thus, the point-like defect 36 functions as a high-performance resonator.

摘要翻译： 本发明旨在提供具有高水平机械强度并用作高效率谐振器的二维光子晶体。 根据本发明的二维光子晶体包括平坦层31，覆层32位于其下方。 在板坯层31中，具有不同于板坯层31的折射率的区域35循环地布置以产生二维光子晶体。 区域35的循环布置的一部分被省略以形成点状缺陷36。 该缺陷36用作特定波长的光谐振的谐振器。 在包层32的预定范围上形成面向点状缺陷36的空气桥腔37。 在这种结构中，除了形成空气桥隔间37的范围之外，包覆层32支撑板层31。 因此，二维光子晶体具有高水平的机械强度。 点状缺陷36之下的空气桥空间37的存在使得容易通过板状层31和空气之间的折射率差来限制点状缺陷36处的光。 因此，点状缺陷36用作高性能谐振器。

公开(公告)号：US07224862B2

公开(公告)日：2007-05-29

申请号：US10537513

申请日：2003-12-05

申请人： Susumu Noda ,  Takashi Asano

发明人： Susumu Noda ,  Takashi Asano

IPC分类号： G02B6/28 ,  G02B6/10

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

摘要： In an in-plane heterostructure photonic crystal in which vacancies 32 are periodically arranged in each of forbidden band zones 301, 302, with different cycle distances, a waveguide 33 is formed passing through all the forbidden band zones and point-like defects 341, 342, . . . are formed in each of the forbidden band zones. Since, of all light propagating through the waveguide from the light introduction/take-out section 36 and having the frequency 52 demultiplexed from the predetermined point-like defect, the wavelength of light passing through the predetermined point-like defect is not included in transmission bands 51 of the waveguide in the adjacent forbidden band zone, so that the light is reflected on the boundaries 351 and 352 between forbidden band zones and introduced into the point-like defect. Thereby, the demultiplexing efficiency of light is improved. The same applies to the multiplexing efficiency.

摘要翻译： 在其中空位32周期性地布置在每个具有不同周期距离的禁带区301,302中的平面内异质结构光子晶体中，形成穿过所有禁带区和点状缺陷341,342的波导33 ，。 。 。 形成在每个禁带区域中。 由于在从光导入/取出部36通过波导传播的所有光从预定的点状缺陷中解复用频率52，所以通过预定点状缺陷的光的波长不包括在传输中 在相邻的禁带区域中波导的频带51，使得光在禁带区域之间的边界351和352上反射并被引入点状缺陷。 从而提高了光的解复用效率。 这同样适用于复用效率。

公开(公告)号：US20060051042A1

公开(公告)日：2006-03-09

申请号：US10537119

申请日：2003-12-05

申请人： Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka

发明人： Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka

IPC分类号： G02B6/10

CPC分类号： B82Y20/00 ,  G02B6/12002 ,  G02B6/1225 ,  G02F2202/32

摘要： The present invention aims to provide a two-dimensional photonic crystal having an optical resonator, which allows the control of the front/back emission ratio of light. To achieve this object, a refractive index member (13) made of a material having a refractive index different from that of air is mounted on a two-dimensional photonic crystal having a body (11) in which holes (12) are periodically arranged. In this construction, the body (11) and the refractive index member (13) cooperatively function as an optical resonator located at the position where the refractive index member (13) is mounted. The light emitted from this optical resonator is stronger on the side having a higher refractive index, i.e. on the side where the refractive index member is mounted. Accordingly, the light (191) emitted from the side where the refractive index member (13) is mounted is stronger than the light (192) emitted from the other side. The ratio of the emission intensity of the two rays of light (191) and (192), i.e. the front/back emission ratio, can be controlled by changing the material, shape and/or size of the refractive index member.

摘要翻译： 本发明旨在提供一种具有光谐振器的二维光子晶体，其允许控制光的前/后发射比。 为了实现这个目的，由具有不同于空气的折射率的材料制成的折射率构件（13）安装在具有周期性布置有孔（12）的主体（11）的二维光子晶体上。 在这种结构中，主体（11）和折射率构件（13）协调地用作位于折射率构件（13）的位置处的光学谐振器。 从该光谐振器发射的光在具有较高折射率的一侧，即在折射率构件安装的一侧更强。 因此，从折射率构件（13）安装的一侧发射的光（191）比从另一侧发射的光（192）更强。 可以通过改变折射率构件的材料，形状和/或尺寸来控制两束光（191）和（192）的发射强度的比率，即前/后发射比。

公开(公告)号：US08358895B2

公开(公告)日：2013-01-22

申请号：US12225185

申请日：2007-03-20

申请人： Susumu Noda ,  Takashi Asano ,  Hitoshi Kitagawa

发明人： Susumu Noda ,  Takashi Asano ,  Hitoshi Kitagawa

IPC分类号： G02B6/10

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

摘要： Holes 12 are created in a slab-shaped body 11. On the first surface 131 of the body 11, the holes 12 are arranged at the lattice points of a triangular lattice 141. On the second surface 132, they are arranged at the lattice points 122 located at positions corresponding to the gravity center of a triangular lattice 141. Three air columns 12A obliquely extend from each lattice point 121 to the nearest three lattice points 122. Similarly, three air columns 12A obliquely extend from each lattice point 122 to the nearest three lattice points 121. In this construction, a periodic structural unit 16 consisting of three holes is created within the body 11 and this unit has a C3v-symmetrical shape at any section 14 parallel to the body 11. Due to this symmetry and the obliquely extending form of the air column 12A, a complete PBG with a large width is obtained. In one embodiment, a broad complete PBG whose width equals 15% of its middle value is obtained.

摘要翻译： 孔12形成在板状体11中。在主体11的第一表面131上，孔12布置在三角形格子141的格子点处。在第二表面132上，它们被布置在格子点 122位于对应于三角形格子141的重心的位置。三个空气柱12A从每个格点121倾斜延伸到最近的三个格点122.类似地，三个空气柱12A从每个格子点122倾斜延伸到最近的 在这种结构中，在主体11内形成由三个孔组成的周期性结构单元16，该单元在与主体11平行的任何部分14处具有C3v对称的形状。由于该对称性和倾斜的 空气柱12A的延伸形式，获得了宽的宽的完整的PBG。 在一个实施例中，获得宽度等于其中间值的15％的宽整个PBG。

公开(公告)号：US08126306B2

公开(公告)日：2012-02-28

申请号：US12530317

申请日：2008-03-25

申请人： Susumu Noda ,  Takashi Asano ,  Keita Mochizuki

发明人： Susumu Noda ,  Takashi Asano ,  Keita Mochizuki

IPC分类号： G02B6/10 ,  B29D11/00 ,  H01L21/00

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

摘要： A two-dimensional photonic crystal according to the present invention includes a first layer having a dielectric first layer slab in which first layer holes having a refractive index lower than that of the first layer slab are arranged cyclically, a second layer formed on the first layer, including dielectric columns having a refractive index higher than the air arranged in the air with the same cycle as the first layer hole, and a third layer having a dielectric third layer slab in which third layer holes having a refractive index lower than that of the third layer slab are arranged cyclically. Thus, it is possible to obtain the two-dimensional photonic crystal that can create a wider complete PBG than before regardless of the polarization of light and can be manufactured easily.

摘要翻译： 根据本发明的二维光子晶体包括具有电介质第一层板的第一层，其中折射率低于第一层板的折射率的第一层孔循环地布置;第二层，形成在第一层上 包括折射率高于布置在与第一层孔相同周期的空气中的空气的电介质柱，以及第三层，具有介电第三层板，其中第三层孔的折射率低于 循环地布置第三层板。 因此，可以获得能够产生比以前更宽的完整PBG的二维光子晶体，而不管光的偏振，并且可以容易地制造。

公开(公告)号：US07853111B2

公开(公告)日：2010-12-14

申请号：US10591299

申请日：2005-03-04

申请人： Susumu Noda ,  Takashi Asano ,  Seiichi Takayama ,  Hitoshi Kitagawa

发明人： Susumu Noda ,  Takashi Asano ,  Seiichi Takayama ,  Hitoshi Kitagawa

IPC分类号： G02B6/10

CPC分类号： B82Y20/00 ,  G02B6/1225 ,  G02B6/29325 ,  G02B6/2938

摘要： The present invention provides a two-dimensional photonic crystal in which an absolute photonic band gap (PBG), i.e. a photonic band gap that is effective for both the TE-polarized light and the TM-polarized light within a predetermined wavelength range, is created with an adequate bandwidth. The body 21 is provided with holes 22 arranged in a triangular lattice pattern, where the basic shape of the hole is an equilateral triangle. This shaping and arranging of the holes creates an absolute PBG. Each corner of the equilateral triangle is cut along an arc to leave an adequate distance between the neighboring holes (i.e. an adequate width of the connecting portion of the body). This design makes it possible to enlarge each hole 22 while ensuring an adequate strength of the two-dimensional photonic crystal. This construction creates an absolute PBG having a large width.

摘要翻译： 本发明提供一种二维光子晶体，其中产生绝对光子带隙（PBG），即对预定波长范围内的TE偏振光和TM偏振光有效的光子带隙， 具有足够的带宽。 主体21设置有以三角形格子图案布置的孔22，其中孔的基本形状为等边三角形。 这种孔的形成和排列创建了绝对的PBG。 等边三角形的每个角都沿弧线切割，以在相邻的孔之间留下足够的距离（即，身体的连接部分的适当宽度）。 该设计使得可以在确保二维光子晶体的足够强度的同时放大每个孔22。 这种结构创建了宽度大的绝对PBG。

公开(公告)号：US07738749B2

公开(公告)日：2010-06-15

申请号：US10584942

申请日：2005-03-24

申请人： Susumu Noda ,  Takashi Asano ,  Seiichi Takayama

发明人： Susumu Noda ,  Takashi Asano ,  Seiichi Takayama

IPC分类号： G02B6/28 ,  G02B6/26 ,  G02B6/42 ,  G02B6/032

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

摘要： The present invention has been made for providing a photonic crystal capable of multiplexing or demultiplexing light within a wavelength band having a certain width. It includes a slab-shaped body 21 provided with plural forbidden band zones 211 and 212, and holes 221 and 222 having different sizes are arranged in the forbidden band zones with different cycles, respectively. Also formed are a trunk waveguide 24 extending along the direction inclined by +30 degrees from a perpendicular of the boundary 23 between the forbidden band zones 211 and 212, and a branch waveguide 25 extending along the direction inclined by −30 degrees. A ray of light within the multiplexed/demultiplexed wavelength band, which is excluded from the transmission wavelength band of the trunk waveguide 24 in the forbidden band zone 212 and included in the transmission wavelength band of the trunk waveguide 24 in the forbidden band zone 211, is reflected by the boundary 23 and thereby demultiplexed from the trunk waveguide 24 into the branch waveguide 25. Thus, all the rays of light whose wavelengths are within the multiplexed/demultiplexed wavelength band having a certain width are demultiplexed into the branch waveguide 25. Therefore, even if the wavelength of the optical signal is deviated due to some error, the light can be demultiplexed. This is also true for the multiplexing operation.

摘要翻译： 本发明是为了提供能够在具有一定宽度的波长带内复用或分离光的光子晶体。 它包括设置有多个禁带区211和212的板状主体21，并且具有不同尺寸的孔221和222分别布置在不同周期的禁带区中。 还形成有沿着从禁带区211和212之间的边界23的垂直方向倾斜±30度的方向延伸的主干波导24和沿着倾斜-30度的方向延伸的分支波导25。 在禁带区域212中被包含在主干波导24的传输波长带中的禁带区域211中从干线波导24的传输波长带排除的复用/解复用波长带内的光线， 由边界23反射，从而从主干波导24分离成分支波导25.因此，波长在具有一定宽度的复用/解复用波长带内的所有光线被解复用到分支波导25中。因此 即使光信号的波长由于一些误差而偏离，也可以将光解复用。 这对于多路复用操作也是如此。