公开(公告)号：US08094978B2

公开(公告)日：2012-01-10

申请号：US12517099

申请日：2007-11-30

申请人： Masatoshi Tokushima

发明人： Masatoshi Tokushima

IPC分类号： G02B6/12 ,  G02B6/14

CPC分类号： G02B6/1228 ,  G02B6/126 ,  G02B6/13 ,  G02B6/14

摘要： An optical circuit comprises: a first waveguide; a second waveguide: and a third waveguide that converts mode field and direction of polarization of light of said first waveguide at the same time to perform wave guiding to said second waveguide: wherein large aspect ratio directions of corresponding ends of a core of said first waveguide and a core of said second waveguide differ from each other.

摘要翻译： 光路包括：第一波导; 第二波导和第三波导，其同时转换所述第一波导的光的偏振场和偏振方向，以对所述第二波导进行波导：其中所述第一波导的芯的对应端的大纵横比方向 并且所述第二波导的芯彼此不同。

公开(公告)号：US20100226609A1

公开(公告)日：2010-09-09

申请号：US12159498

申请日：2006-12-27

申请人： Masatoshi Tokushima

发明人： Masatoshi Tokushima

IPC分类号： G02B6/26 ,  G02B6/10

CPC分类号： G02B6/1225 ,  B82Y20/00 ,  G02B6/305

摘要： A coupling structure of waveguide including a line defect (LD) waveguide portion having an LD waveguide, an electromagnetic field distribution matching portion (EFDMP) connected between the LD waveguide portion and a first tapered portion, the first tapered portion connected with the EFDMP, and a thin line waveguide portion connected with the first tapered portion and having a thin line waveguide. The EFDMP has a matching portion LD as the LD of a columnar photonic crystal, and the matching portion LD is connected with the LD waveguide. The first tapered portion consists of a first thin wire core, and the first LD of a columnar photonic crystal arranged along at least one side of first thin line core. At least one of the first thin line core and the first LD is connected with the matching portion line defect. The thin line waveguide is connected with the first thin line core.

摘要翻译： 一种波导的耦合结构，包括具有LD波导的线缺陷（LD）波导部分，连接在LD波导部分和第一锥形部分之间的电磁场分布匹配部分（EFDMP），与EFDMP连接的第一锥形部分，以及 与第一锥形部分连接并具有细线波导的细线波导部分。 EFDMP具有匹配部分LD作为柱状光子晶体的LD，并且匹配部分LD与LD波导连接。 第一锥形部分由第一细芯线和沿着第一细线芯的至少一侧排列的柱状光子晶体的第一LD组成。 第一细线芯和第一LD中的至少一个与匹配部分线缺陷连接。 细线波导与第一细线芯连接。

公开(公告)号：US20100002989A1

公开(公告)日：2010-01-07

申请号：US12517099

申请日：2007-11-30

申请人： Masatoshi Tokushima

发明人： Masatoshi Tokushima

IPC分类号： G02B6/12 ,  G02B6/14

CPC分类号： G02B6/1228 ,  G02B6/126 ,  G02B6/13 ,  G02B6/14

摘要： An optical circuit comprises a first waveguide; a second waveguide; and a third waveguide that converts mode field and direction of polarization of light of said first waveguide at the same time to perform wave guiding to said second waveguide; wherein large aspect ratio directions of corresponding ends of a core of said first waveguide and a core of said second waveguide differ from each other.

摘要翻译： 光路包括第一波导; 第二波导; 以及第三波导，其同时转换所述第一波导的光的偏振方向和偏振方向，以对所述第二波导进行波导; 其中所述第一波导的芯的相应端的大纵横比方向和所述第二波导的芯彼此不同。

公开(公告)号：US07058244B2

公开(公告)日：2006-06-06

申请号：US11049357

申请日：2005-02-01

申请人： Kazuhiro Iida ,  Masatoshi Tokushima ,  Tsuyoshi Shimoda

发明人： Kazuhiro Iida ,  Masatoshi Tokushima ,  Tsuyoshi Shimoda

IPC分类号： G02B6/00 ,  H01L21/00

CPC分类号： G01N21/05 ,  B01L3/502715 ,  B01L2300/0654 ,  B01L2300/0816 ,  B01L2300/0887 ,  B01L2300/168 ,  G01N2021/0346

摘要： A microchip includes a clad layer having a channel through which a sample flows, and an optical waveguide formed within the clad layer and having a higher refractive index than the clad layer. The optical waveguide is formed to act on the channel optically. Thus, the sample flowing in the channel can be analyzed with high accuracy even in the microchip having a fine structure.

摘要翻译： 微芯片包括具有样品流过的通道的覆层和形成在覆盖层内并且具有比包覆层更高的折射率的光波导。 光波导形成为在光学上作用在通道上。 因此，即使在具有精细结构的微芯片中，也可以高精度地分析在通道中流动的样品。

公开(公告)号：US5618753A

公开(公告)日：1997-04-08

申请号：US539065

申请日：1995-10-04

申请人： Masatoshi Tokushima

发明人： Masatoshi Tokushima

IPC分类号： H01L21/265 ,  H01L21/266 ,  H01L21/28 ,  H01L21/764

CPC分类号： H01L21/28 ,  Y10S438/975

摘要： A method for forming an electrode on a mesa structure of a semiconductor substrate. The method comprises the steps of: selectively forming an electrode on a predetermined area in a surface of the semiconductor substrate; and subjecting the substrate to a selective etching by use of the electrode as a mask to form a mesa structure on the substrate so that the mesa structure is self-aligned just under the electrode.

摘要翻译： 一种在半导体衬底的台面结构上形成电极的方法。 该方法包括以下步骤：在半导体衬底的表面中的预定区域上选择性地形成电极; 并且通过使用电极作为掩模对衬底进行选择性蚀刻，以在衬底上形成台面结构，使得台面结构在电极正下方自对准。

公开(公告)号：US08355614B2

公开(公告)日：2013-01-15

申请号：US12919451

申请日：2009-01-26

申请人： Masatoshi Tokushima

发明人： Masatoshi Tokushima

IPC分类号： G02B6/032 ,  G02B6/34 ,  G02B6/10

CPC分类号： G02B6/1225 ,  B82Y20/00

摘要： In an exemplary embodiment, an optical waveguide (10) includes a first dielectric medium (11). In the first dielectric medium (11), line-defect rods (12) are arranged in one row and non-line-defect rods (13) are arranged along the row of line-defect rods (12) and on both sides of the row of the line-defect rods (12). The line-defect rods (12) and non-line-defect rods (13) form a two-dimensional square lattice. Of the rows of non-line-defect rods (13) arranged on the two sides of the row of line-defect rods (12), the number of rows of non-line-defect rods (13) on at least one side is at least one and no greater than five.

摘要翻译： 在示例性实施例中，光波导（10）包括第一电介质（11）。 在第一电介质（11）中，线缺陷棒（12）被布置成一排，并且非线缺陷棒（13）沿着线条缺陷棒（12）的排布置，并且在线缺陷杆 行缺陷棒（12）。 线缺陷棒（12）和非线缺陷棒（13）形成二维正方晶格。 在排列在行缺陷棒（12）的两侧的非排线缺陷棒（13）排中，至少一侧的非线缺陷棒（13）的行数为 至少一个也不超过五个。

公开(公告)号：US08027556B2

公开(公告)日：2011-09-27

申请号：US12159498

申请日：2006-12-27

申请人： Masatoshi Tokushima

发明人： Masatoshi Tokushima

IPC分类号： G02B6/26

CPC分类号： G02B6/1225 ,  B82Y20/00 ,  G02B6/305

摘要： A coupling structure of waveguide including a line defect (LD) waveguide portion having an LD waveguide, an electromagnetic field distribution matching portion (EFDMP) connected between the LD waveguide portion and a first tapered portion, the first tapered portion connected with the EFDMP, and a thin line waveguide portion connected with the first tapered portion and having a thin line waveguide. The EFDMP has a matching portion LD as the LD of a columnar photonic crystal, and the matching portion LD is connected with the LD waveguide. The first tapered portion consists of a first thin wire core, and the first LD of a columnar photonic crystal arranged along at least one side of first thin line core. At least one of the first thin line core and the first LD is connected with the matching portion line defect. The thin line waveguide is connected with the first thin line core.

摘要翻译： 一种波导的耦合结构，包括具有LD波导的线缺陷（LD）波导部分，连接在LD波导部分和第一锥形部分之间的电磁场分布匹配部分（EFDMP），与EFDMP连接的第一锥形部分，以及 与第一锥形部分连接并具有细线波导的细线波导部分。 EFDMP具有匹配部分LD作为柱状光子晶体的LD，并且匹配部分LD与LD波导连接。 第一锥形部分由第一细芯线和沿着第一细线芯的至少一侧排列的柱状光子晶体的第一LD组成。 第一细线芯和第一LD中的至少一个与匹配部分线缺陷连接。 细线波导与第一细线芯连接。

公开(公告)号：US20100278487A1

公开(公告)日：2010-11-04

申请号：US12811900

申请日：2008-11-25

申请人： Masatoshi Tokushima

发明人： Masatoshi Tokushima

IPC分类号： G02B6/26

CPC分类号： G02B6/1225 ,  B82Y20/00 ,  G02B6/1228 ,  G02B6/355 ,  G02B6/3596 ,  G02B2006/12109 ,  G02B2006/12119 ,  G02B2006/12145 ,  G02F1/035 ,  G02F1/3137 ,  G02F2202/32

摘要： A waveguide stub is connected to a pillar-type square-lattice photonic crystal waveguide. Within the waveguide stub, the diameter of a defect is made larger than that of the original photonic crystal waveguide thereby reducing the group velocity of a guided light. The original waveguide and the waveguide stub are smoothly connected via a taper waveguide. Because of low group velocity of light in the waveguide stub, free spectral range (FSR) decreases thereby allowing the size of the waveguide stub to be reduced.

摘要翻译： 波导短截线连接到柱型正方晶格光子晶体波导。 在波导短截线内，使缺陷的直径大于原始光子晶体波导的直径，从而降低导光体的组速度。 原始波导和波导短截线通过锥形波导平滑连接。 由于波导短截线中光的群速度较低，自由光谱范围（FSR）降低，从而允许减小波导短截线的尺寸。

公开(公告)号：US20060104586A1

公开(公告)日：2006-05-18

申请号：US11312207

申请日：2005-12-19

申请人： Masatoshi Tokushima

发明人： Masatoshi Tokushima

IPC分类号： G02B6/10

CPC分类号： G02B6/1225 ,  B82Y20/00

摘要： Disclose is a photonic crystal structure comprises atomic dielectric pillars having a refractive index distribution and a structure which are both mirror-symmetrical in a thicknesswise direction of the photonic crystal. The atomic pillars are arrayed in a two-dimensional lattice pattern to form a dielectric pillar lattice. The dielectric pillar lattice is disposed within a surrounding dielectric having a uniform or substantially uniform refractive index distribution. An organic resin which serves as part of surrounding dielectric is disposed in an asymmetrical position in a thicknesswise direction of the photonic crystal.

摘要翻译： Disclose是一种光子晶体结构，包括具有折射率分布和在光子晶体的厚度方向上都是镜像对称的结构的原子介质柱。 原子柱以二维晶格图案排列以形成介电柱晶格。 电介质柱格置于具有均匀或基本上均匀的折射率分布的周围电介质内。 用作周围电介质的一部分的有机树脂被设置在光子晶体的厚度方向上的不对称位置。

公开(公告)号：US20050249455A1

公开(公告)日：2005-11-10

申请号：US11181722

申请日：2005-07-15

申请人： Masayuki Shirane ,  Masatoshi Tokushima

发明人： Masayuki Shirane ,  Masatoshi Tokushima

IPC分类号： G02B6/12 ,  G02B6/122 ,  G02F1/01 ,  G02F1/015 ,  G02F1/025 ,  G02F1/313 ,  G02B6/26 ,  G02B6/20

CPC分类号： G02F1/025 ,  B82Y20/00 ,  G02B6/1225 ,  G02F2202/32 ,  G02F2203/48

摘要： The present invention provides an optical switch having a photonic crystal structure. An optical switch of the invention has a slab optical waveguide structure whose core (35) has a two-dimensional photonic crystal structure where two or more media (33, 34) with different refractive indices are alternately and regularly arranged in a two-dimensional manner. The photonic crystal structure comprises: a line-defect waveguide; and means for altering the refractive index of the line-defect waveguide.

摘要翻译： 本发明提供一种具有光子晶体结构的光开关。 本发明的光开关具有平板光波导结构，其芯（35）具有二维光子晶体结构，其中具有不同折射率的两个或多个介质（33,34）以二维方式交替地和规则地排列 。 光子晶体结构包括：线缺陷波导; 以及用于改变线缺陷波导的折射率的装置。