公开(公告)号：US20120072931A1

公开(公告)日：2012-03-22

申请号：US13375407

申请日：2010-03-05

申请人： Masahiro Imada ,  Koujirous Sekine

发明人： Masahiro Imada ,  Koujirous Sekine

IPC分类号： G11B7/1353 ,  H01S5/026 ,  G11B7/08

CPC分类号： G11B7/1384 ,  G11B5/314 ,  G11B5/6005 ,  G11B5/6088 ,  G11B7/1353 ,  G11B7/1387 ,  G11B2005/0021 ,  H01S5/026 ,  H01S5/1032 ,  H01S5/105 ,  H01S5/187

摘要： Disclosed is an optical recording head which is provided with a surface emitting laser that emits laser light which is efficiently introduced into a waveguide through a grating coupler (diffraction grating). Specifically disclosed is an optical recording head which is provided with a surface emitting laser comprising at least a light source, and a waveguide that is connected thereto through a diffraction grating and irradiates a recording medium with the light from the light source. The light source has a two-dimensional photonic crystal structure in the surface that faces the waveguide. Regions of the two-dimensional photonic crystal structure other than the region facing the diffraction grating are converted, and the region facing the diffraction grating serves as a surface emitting.

摘要翻译： 公开了一种光记录头，其设置有发射激光的表面发射激光器，其通过光栅耦合器（衍射光栅）被有效地引入到波导管中。 具体公开了一种光记录头，其设置有至少包括光源的表面发射激光器，以及通过衍射光栅与其连接的波导，并且利用来自光源的光照射记录介质。 光源在面向波导的表面上具有二维光子晶体结构。 除了面向衍射光栅的区域之外的二维光子晶体结构的区域被转换，并且面向衍射光栅的区域用作表面发射。

公开(公告)号：US07860141B2

公开(公告)日：2010-12-28

申请号：US11919344

申请日：2005-04-28

申请人： Susumu Noda ,  Masahiro Imada ,  Dai Ohnishi

发明人： Susumu Noda ,  Masahiro Imada ,  Dai Ohnishi

IPC分类号： H01S5/00

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

摘要： One objective of the present invention is to provide a laser device which is capable of scanning beams of a laser light of high output power at a high speed without using mechanical scanning mechanisms. A plurality of the upper electrodes 33 is linearly arranged in the photonic crystal laser provided with an active layer 21 and a two-dimensional photonic crystal layer 23 which are held between upper electrodes 33 and a lower electrode 27. A current is introduced from one upper electrode 33 or the plurality of the upper electrodes 33 disposed adjacently. Therefore, the active layer 21 generates light and the light is intensified by diffraction in the two-dimensional photonic crystal layer 23, so that a stronger laser light is emitted to the outside from around the upper electrodes 33 into which a current is introduced. When the current-injected upper electrodes are sequentially switched, a laser light scan is performed in the direction of the array of the upper electrodes. Since this switching can be made electrically, a laser light scan can be achieved at a high speed without using the mechanical scanning mechanisms.

摘要翻译： 本发明的一个目的是提供一种能够在不使用机械扫描机构的情况下高速扫描高输出功率的激光的光束的激光装置。 多个上部电极33线性排列在设置有被保持在上部电极33和下部电极27之间的有源层21和二维光子晶体层23的光子晶体激光器中。从一个上部电极引入电流 电极33或相邻设置的多个上电极33。 因此，有源层21产生光，并且通过二维光子晶体层23中的衍射增强光，使得更强的激光从引入电流的上电极33的周围向外部发射。 当依次切换电流注入的上电极时，在上电极阵列的方向上执行激光扫描。 由于可以进行该切换，因此可以在不使用机械扫描机构的情况下高速实现激光扫描。

公开(公告)号：US20090034566A1

公开(公告)日：2009-02-05

申请号：US11919344

申请日：2005-04-28

申请人： Susumu Noda ,  Masahiro Imada ,  Dai Ohnishi

发明人： Susumu Noda ,  Masahiro Imada ,  Dai Ohnishi

IPC分类号： H01S3/16

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

摘要： One objective of the present invention is to provide a laser device which is capable of scanning beams of a laser light of high output power at a high speed without using mechanical scanning mechanisms. A plurality of the upper electrodes 33 is linearly arranged in the photonic crystal laser provided with an active layer 21 and a two-dimensional photonic crystal layer 23 which are held between upper electrodes 33 and a lower electrode 27. A current is introduced from one upper electrode 33 or the plurality of the upper electrodes 33 disposed adjacently. Therefore, the active layer 21 generates light and the light is intensified by diffraction in the two-dimensional photonic crystal layer 23, so that a stronger laser light is emitted to the outside from around the upper electrodes 33 into which a current is introduced. When the current-injected upper electrodes are sequentially switched, a laser light scan is performed in the direction of the array of the upper electrodes. Since this switching can be made electrically, a laser light scan can be achieved at a high speed without using the mechanical scanning mechanisms.

摘要翻译： 本发明的一个目的是提供一种能够在不使用机械扫描机构的情况下高速扫描高输出功率的激光的光束的激光装置。 多个上部电极33线性排列在设置有被保持在上部电极33和下部电极27之间的有源层21和二维光子晶体层23的光子晶体激光器中。从一个上部电极引入电流 电极33或相邻设置的多个上电极33。 因此，有源层21产生光，并且通过二维光子晶体层23中的衍射增强光，使得更强的激光从引入电流的上电极33的周围向外部发射。 当依次切换电流注入的上电极时，在上电极阵列的方向上执行激光扫描。 由于可以进行该切换，因此可以在不使用机械扫描机构的情况下高速实现激光扫描。

公开(公告)号：US08009953B2

公开(公告)日：2011-08-30

申请号：US11885546

申请日：2006-03-03

申请人： Susumu Noda ,  Makoto Okano ,  Masahiro Imada ,  Shigeki Takahashi

发明人： Susumu Noda ,  Makoto Okano ,  Masahiro Imada ,  Shigeki Takahashi

IPC分类号： G02B6/10

CPC分类号： H01S5/10 ,  B82Y20/00 ,  G02B6/1225 ,  G02B6/136 ,  H01S5/105 ,  Y10T428/24331

摘要： An object of the present invention is to provide a three-dimensional photonic crystal which allows an internal formation of a defect structure with an arbitrary shape and size. Multiple holes extending to two different directions are formed obliquely to a base body surface in order to form a first crystal and a second crystal. Base body left between the holes are made to be rods. Moreover, a connection crystal layer is formed by a part of rods having a size different from that of the rods in the first crystal and the second crystal. The connection crystal layer is held between the first crystal and the second crystal and they are fused. In a three-dimensional photonic crystal thus obtained, the rod becomes a point defect. The shape and size of the point defect can be arbitrarily set in any directions within the connection crystal layer. The shape and size of the point defect can also be controlled by adjusting the thickness of the connection crystal layer.

摘要翻译： 本发明的目的是提供一种能够内部形成任意形状和尺寸的缺陷结构的三维光子晶体。 延伸到两个不同方向的多个孔相对于基体表面倾斜地形成，以便形成第一晶体和第二晶体。 留在孔之间的基体被制成棒。 此外，连接晶体层由具有与第一晶体和第二晶体中的棒的尺寸不同的尺寸的棒的一部分形成。 连接晶体层保持在第一晶体和第二晶体之间并且熔合。 在由此获得的三维光子晶体中，棒变成点缺陷。 点缺陷的形状和尺寸可以在连接晶体层内的任何方向任意设置。 也可以通过调整连接晶体层的厚度来控制点缺陷的形状和尺寸。

公开(公告)号：US20120092973A1

公开(公告)日：2012-04-19

申请号：US13378298

申请日：2010-02-10

申请人： Masahiro Imada ,  Koujirou Sekine ,  Hiroshi Hatano

发明人： Masahiro Imada ,  Koujirou Sekine ,  Hiroshi Hatano

IPC分类号： F21V8/00 ,  G11B13/04 ,  G11B15/64

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B7/122 ,  G11B7/1387 ,  G11B2005/0021

摘要： Disclosed is a light spot forming element which is capable of forming a minute stabilized light spot efficiently and is easy to handle. For this purpose, there is provided a light spot forming element wherein a laser oscillation unit which has a periodic refractive index distribution and is employed as a laser resonator, and a focusing unit that receives the light emitted by this laser oscillation unit and forms a light spot by focusing this received light are formed on the same substrate.

摘要翻译： 公开了能够有效地形成微小稳定的光斑并且易于处理的光斑形成元件。 为此，提供了一种光点形成元件，其中具有周期性折射率分布并用作激光谐振器的激光振荡单元和聚焦单元，其接收由该激光振荡单元发射的光并形成光 聚焦这个接收光的斑点形成在相同的基底上。

公开(公告)号：US20080131660A1

公开(公告)日：2008-06-05

申请号：US11885546

申请日：2006-03-03

申请人： Susumu Noda ,  Makoto Okano ,  Masahiro Imada ,  Shigeki Takahashi

发明人： Susumu Noda ,  Makoto Okano ,  Masahiro Imada ,  Shigeki Takahashi

IPC分类号： B32B3/10 ,  B29D11/00

CPC分类号： H01S5/10 ,  B82Y20/00 ,  G02B6/1225 ,  G02B6/136 ,  H01S5/105 ,  Y10T428/24331

摘要： An object of the present invention is to provide a three-dimensional photonic crystal which allows an internal formation of a defect structure with an arbitrary shape and size. Multiple holes extending to two different directions are formed obliquely to a base body surface in order to form a first crystal and a second crystal. Base body left between the holes are made to be rods. Moreover, a connection crystal layers is formed by a part of rods having a size different from that of the rods in the first crystal and the second crystal. The connection crystal layer is held between the first crystal and the second crystal and they are fused. In a three-dimensional photonic crystal thus obtained, the rod becomes a point defect. The shape and size of the point defect can be arbitrarily set in any directions within the connection crystal layer. The shape and size of the point defect can also be controlled by adjusting the thickness of the connection crystal layer.

摘要翻译： 本发明的目的是提供一种能够内部形成任意形状和尺寸的缺陷结构的三维光子晶体。 延伸到两个不同方向的多个孔相对于基体表面倾斜地形成，以便形成第一晶体和第二晶体。 留在孔之间的基体被制成棒。 此外，连接晶体层由具有与第一晶体和第二晶体中的棒的尺寸不同的尺寸的棒的一部分形成。 连接晶体层保持在第一晶体和第二晶体之间并且熔合。 在由此获得的三维光子晶体中，棒变成点缺陷。 点缺陷的形状和尺寸可以在连接晶体层内的任何方向任意设置。 也可以通过调整连接晶体层的厚度来控制点缺陷的形状和尺寸。