公开(公告)号：KR1020050028461A

公开(公告)日：2005-03-23

申请号：KR1020030064719

申请日：2003-09-18

Applicant: 한국전자통신연구원

Inventor： 박용우 ,  표현봉 ,  서동우 ,  손영준 ,  류호준 ,  백문철

IPC: G02B6/122

CPC classification number: G11B11/10543 ,  B82Y20/00 ,  G02B6/1226 ,  G11B7/124

Abstract: A leaky surface-plasmon mode directional coupler and a polarization detection module for a magneto-optical pickup head using same are provided to reduce size and weight of the coupler by monolithic-integrating the coupler on a circuit board. A planar waveguide(100) includes a substrate(105), a core layer(110), and a cladding layer. The planar waveguide propagates a TM mode and a TE mode from an input terminal to an output terminal. A leaky surface-plasmon mode waveguide(130) uses the cladding layer and a lower cladding layer and includes a metal film layer and an upper cladding layer. The metal film layer and the upper cladding layer cover a portion of the cladding layer to generate a leaky surface-plasmon mode. A first photo diode(410) is provided on the leaky surface-plasmon mode directional coupler(90) having the planar waveguide and the leaky surface-plasmon mode waveguide. A second photo diode(420) is provided on an output terminal of the core layer. A polarization detection module measures a polarization angle using detected power difference between the first and second photo diodes.

Abstract translation: 提供泄漏的表面等离子体模式定向耦合器和用于使用其的磁光拾取头的偏振检测模块，以通过将耦合器整合在电路板上来减小耦合器的尺寸和重量。 平面波导（100）包括基板（105），芯层（110）和包覆层。 平面波导将TM模式和TE模式从输入端子传播到输出端子。 泄漏的表面等离子体激元模式波导（130）使用包覆层和下包层，并且包括金属膜层和上覆层。 金属膜层和上覆层覆盖包层的一部分以产生泄漏的表面等离子体模式。 第一光电二极管（410）设置在具有平面波导和漏表面等离子体激元波导的泄漏表面等离子体激元模式定向耦合器（90）上。 第二光电二极管（420）设置在芯层的输出端上。 偏振检测模块使用第一和第二光电二极管之间的检测到的功率差来测量偏振角。

公开(公告)号：KR1020030062078A

公开(公告)日：2003-07-23

申请号：KR1020020002499

申请日：2002-01-16

Applicant: 한국전자통신연구원

Inventor： 김약연 ,  한기평 ,  손영준 ,  김태엽 ,  백문철 ,  조경익

IPC: G11B7/1365

Abstract: PURPOSE: An optical recording head using a birefringent material is provided to increase depth of focus more than depth of focus formed by one focus, thereby easily controlling a focus without increasing the accuracy of a focus servo. CONSTITUTION: A solid immersion lens(204) is provided. A laser diode(201) generates an incident beam to be projected to the solid immersion lens. A polarizing beam splitter(202) is installed between the laser diode and the solid immersion lens. A photo diode(206) forms bits on a storage medium(205) through a birefringent optical element(209), a condenser(203), and the solid immersion lens. The photo diode detects a bit signal and a focus control signal through a signal light. A focus of a vertical polarized light(210) and a focus of a horizontal polarized light(211) are formed at different positions on an optical axis(201a), so that depth of focus is increased.

Abstract translation: 目的：提供使用双折射材料的光学记录头，以增加焦点的深度，而不是增加聚焦伺服的精度，从而容易地控制聚焦的聚焦深度。 构成：提供固体浸没透镜（204）。 激光二极管（201）产生投射到固体浸没透镜的入射光束。 偏振分束器（202）安装在激光二极管和固体浸没透镜之间。 光电二极管（206）通过双折射光学元件（209），冷凝器（203）和固体浸没透镜在存储介质（205）上形成位。 光电二极管通过信号光检测位信号和聚焦控制信号。 垂直偏振光（210）的焦点和水平偏振光（211）的焦点形成在光轴（201a）上的不同位置，从而增加了焦深。

公开(公告)号：KR100392255B1

公开(公告)日：2003-07-23

申请号：KR1020000080801

申请日：2000-12-22

Applicant: 한국전자통신연구원

Inventor： 한기평 ,  손영준 ,  김태엽 ,  백문철 ,  조경익

IPC: G11B7/124 ,  G11B7/1374 ,  G11B7/1353 ,  G11B7/1387

Abstract: PURPOSE: A micro near-field optical data storage head using an SIL(Solid Immersion Lens) is provided to use the SIL for a big size lens, and to use diffraction elements for the rest parts, thereby minimizing the size. CONSTITUTION: An optical waveguide(201) has a plane shape. At least more than one condensing diffraction grating(203) is attached to one of both sides of the optical waveguide, and changes a path of an incident light(202) to an SIL(205). More than one optical division diffraction grating(210) is located between a light source and the condensing diffraction grating, and changes a path of a signal light(209). The SIL is composed of a curved part and a plane part, and concentrates the incident light on one point of the plane part. A coil(206) is attached to an option position of an optical storage head, and generates a magnetic field. The curved part of the SIL is formed on a sphere, hemisphere, or super-hemisphere, to make the incident light diffracted by the condensing diffraction grating form an optical point less than diffraction limits.

Abstract translation: 目的：提供使用SIL（固体浸没透镜）的微型近场光学数据存储头，以将SIL用于大尺寸透镜，并将衍射元件用于其余部分，从而使尺寸最小化。 构成：光波导（201）具有平面形状。 至少多于一个聚光衍射光栅（203）附着到光波导的两侧中的一侧，并且将入射光（202）的路径改变为SIL（205）。 不止一个光学分割衍射光栅（210）位于光源和聚光衍射光栅之间，并且改变信号光的路径（209）。 SIL由弯曲部分和平面部分组成，并将入射光集中在平面部分的一个点上。 线圈（206）附接到光存储头的选项位置，并产生磁场。 SIL的弯曲部分形成在球体，半球或超半球上，以使由聚光衍射光栅衍射的入射光形成小于衍射极限的光点。

公开(公告)号：KR1020030054760A

公开(公告)日：2003-07-02

申请号：KR1020010085167

申请日：2001-12-26

Applicant: 한국전자통신연구원

Inventor： 한기평 ,  김약연 ,  손영준 ,  김태엽 ,  백문철 ,  조경익

IPC: G01B11/14

Abstract: PURPOSE: A gap measuring apparatus for a solid immersion lens is provided to easily measure a gap formed between a storage medium and the solid immersion lens by detecting a distribution of interference signals. CONSTITUTION: A gap measuring apparatus includes a refracting device(201), and a light detecting device(202). The refracting device(201) allows internal total-reflection light(204) reflected from a lower plane(104a) of a solid immersion lens and transmission light(205) reflected from a surface of a storage medium(105) to be focused at one spot. The light detecting device(202) detects a light intensity distribution of an interference signal generated by the refracting device(201). The refracting device(201) includes at a refractive optical device having at least one lens. The light detecting device(202) includes photoelectronic device or a charge coupled device.

Abstract translation: 目的：提供一种用于固体浸没透镜的间隙测量装置，用于通过检测干涉信号的分布来容易地测量形成在存储介质和固体浸没透镜之间的间隙。 构成：间隙测量装置包括折射装置（201）和光检测装置（202）。 折射装置（201）允许从固体浸没透镜的下平面（104a）反射的内部全反射光（204）和从存储介质（105）的表面反射的透射光（205）聚焦在一个 点。 光检测装置（202）检测由折射装置（201）产生的干涉信号的光强度分布。 折射装置（201）包括具有至少一个透镜的折射光学装置。 光检测装置（202）包括光电子器件或电荷耦合器件。

公开(公告)号：KR100388060B1

公开(公告)日：2003-06-18

申请号：KR1020000080800

申请日：2000-12-22

Applicant: 한국전자통신연구원

Inventor： 한기평 ,  손영준 ,  김태엽 ,  백문철 ,  조경익

IPC: G11B7/124 ,  G11B7/1353 ,  G11B7/1387

Abstract: PURPOSE: An optical data storage device using an SIL(Solid Immersion Lens) and a waveguide diffraction grating coupler is provided to install an optical storage head device combining the waveguide diffraction grating coupler with the SIL and a cartridge, and to use an optical fiber for inducing light, thereby obtaining high storage density without polluting a head of an optical storage device and a storage medium. CONSTITUTION: A recording medium(101) rotates on the basis of the first rotation hub in a cartridge. One end of a rotary arm(102) is fixed into the second rotation hub in the cartridge. A flying head(104) is attached to a free end of the rotary arm, and writes data on the recording medium or reads the data from the recording medium. An optical waveguide is installed up to outside of the cartridge from the flying head. The rotary arm rotates within an angle where the rotary arm is capable of guiding the flying head up to an utmost inner track from an utmost outer track of the cartridge.

Abstract translation: 目的：提供一种使用SIL（固体浸没透镜）和波导衍射光栅耦合器的光学数据存储装置，用于安装将波导衍射光栅耦合器与SIL和盒子组合在一起的光学存储头装置，并且使用用于 诱导光，从而获得高存储密度而不会污染光学存储装置和存储介质的头部。 构成：记录介质（101）以盒中的第一旋转毂为基础旋转。 旋转臂（102）的一端固定在盒中的第二旋转毂内。 飞行头（104）连接在旋转臂的自由端上，并将数据写入记录介质或从记录介质读取数据。 光学波导从飞行头安装到盒的外部。 旋转臂在一定角度内旋转，其中旋转臂能够从盒的最外部轨道将飞行头引导至最内部的轨道。

公开(公告)号：KR100319459B1

公开(公告)日：2002-01-09

申请号：KR1020000004140

申请日：2000-01-28

Applicant: 한국전자통신연구원

Inventor： 한기평 ,  손영준 ,  백문철 ,  조경익

IPC: G11B7/085

Abstract: 본 발명은 대용량의 정보를 저장하기 위하여 SIL(solid immersion lens)을 이용하는 것과 같은 근접장 방식을 이용하는 광 저장 방법 및 그 장치에 관한 것으로서 특히, 광학 기록매체에 광 신호를 집광하여 조사하는 제 1과정과; 상기 제 1과정을 통해 조사되어진 광 신호가 기록매체의 표면에서 반사 회절되는 광 신호를 수신하는 제 2과정과; 상기 제 2과정을 통해 수신되어진 광 신호의 회절량을 기준치와 비교하는 제 3과정; 및 상기 제 2과정을 통해 수신되어진 광 신호의 회절량의 편차가 기준치와 동일해지도록 트랙킹 동작을 수행하는 제 4과정을 포함하는 것을 특징으로 하는 고밀도 근접 광저장을 위한 트랙킹 방법 및 그에 따른 장치를 제공하면, 본 발명은 SIL을 이용한 근접 방식의 광 정보 저장 장치에서 회절광 검출 방식을 이용하여 트랙킹 신호를 얻어내는 장치에 대한 것으로서, 기존의 근접장 트랙킹 방식인 주사 스캔형 방식에 비하여 구조가 단순하며 기존의 광 저장 장치에서 사용되는 push-pull방식을 응용할 수 있으므로 하드웨어적인 호환성이 높다는 효과가 있다.

公开(公告)号：KR1019990055421A

公开(公告)日：1999-07-15

申请号：KR1019970075365

申请日：1997-12-27

Applicant: 한국전자통신연구원

Inventor： 김도훈 ,  손영준 ,  권진혁 ,  정해빈 ,  김보우

IPC: H01L21/027

Abstract: 본 발명은 ArF 엑시머 레이저를 광원으로 하는 스탭 및 스캔(step & scan) 노광장비에 관한 것으로서, 특히 1차원형 반도체 위치 검출소자를 사용하여 그 장치가 비교적 간단하면서도 높은 위치 정밀도를 얻을 수 있는 위치 검출 소자를 이용한 레티클 정렬 장치 및 레티클 정렬 방법에 관한 것이다.
본 발명은 실제 노광 작업을 위해 반도체 회로 패턴을 담고있는 레티클을 카세트나 카트릿지로 부터 레티클 척으로 반입할 때 레티클이 웨이퍼나 광학계의 상대적인 적정 위치에 올 수 있도록 레티클을 직접 정렬하는 레티클 정렬 장치에 관한 내용으로서 1차원형 반도체 위치 검출소자를 사용하여 그 장치가 비교적 간단하면서도 높은 정밀도를 얻을 수 있는 장치 및 방법을 제시한다.

公开(公告)号：KR1020050007989A

公开(公告)日：2005-01-21

申请号：KR1020030047637

申请日：2003-07-12

Applicant: 한국전자통신연구원

Inventor： 박용우 ,  손영준 ,  백문철 ,  서동우 ,  류호준 ,  표현봉

IPC: G02B6/12

Abstract: PURPOSE: A focusing waveguide grating coupler and an optical pickup head using the same are provided to relatively simplify the design of grating by independently manufacturing the grating for outputting the output beam from the waveguide mode. CONSTITUTION: A focusing waveguide grating coupler includes a waveguide, a grating coupler(113) and a Fresnel grating lens(128). The waveguide is provided with a substrate(111) and a core layer(112). The grating coupler couples the light beam inputted through the waveguide to the substrate. And, the Fresnel grating lens diffracts the light beam coupled from the grating coupler to one focusing point.

Abstract translation: 目的：提供聚焦波导光栅耦合器和使用其的光学拾取头，以通过独立地制造用于从波导模式输出输出光束的光栅来相对简化光栅的设计。 构成：聚焦波导光栅耦合器包括波导，光栅耦合器（113）和菲涅尔光栅透镜（128）。 波导设置有基板（111）和芯层（112）。 光栅耦合器将通过波导输入的光束耦合到衬底。 并且，菲涅耳光栅透镜将从光栅耦合器耦合的光束衍射到一个聚焦点。

公开(公告)号：KR100462481B1

公开(公告)日：2004-12-17

申请号：KR1020020008298

申请日：2002-02-16

Applicant: 한국전자통신연구원

Inventor： 김태엽 ,  한기평 ,  김약연 ,  손영준 ,  백문철 ,  조경익

IPC: G01B11/26

Abstract: PURPOSE: A focusing angle measuring apparatus of a focusing waveguide grating coupler is provided to precisely measure a focusing angle of the focusing waveguide grating coupler by using a wide-band optical system, thereby minimizing process and design errors. CONSTITUTION: Light radiated from a wide-band light source(201) is guided into one plane of an image detecting device(211) through a photo guide(202), openings(203,205,206), a relay lens(204), a focusing lens(208) and a beam splitter(207) so that an image of a focusing grating(210) is formed on the plate of the image detecting device(211). At the same time, light is diffracted by means of the focusing grating(210) so that a focus(213) of light is formed. Focusing light(215) is formed on one plane of an image detecting device(211) by means of the focusing lens(208). That is, a shape of the opening(205) is formed on the plane of the image detecting device(211).

Abstract translation: 目的：提供一种聚焦波导光栅耦合器的聚焦角度测量装置，用于通过使用宽带光学系统来精确测量聚焦波导光栅耦合器的聚焦角，从而最小化过程和设计误差。 组成：从宽带光源（201）辐射的光通过光导（202），开口（203,205,206），中继透镜（204），聚焦透镜（204）被引导到图像检测装置（211） （208）和分束器（207），从而在图像检测装置（211）的板上形成聚焦光栅（210）的图像。 同时，光通过聚焦光栅（210）衍射，从而形成光的焦点（213）。 聚焦光（215）通过聚焦透镜（208）形成在图像检测装置（211）的一个平面上。 即，在图像检测装置（211）的平面上形成开口（205）的形状。

公开(公告)号：KR1020040053564A

公开(公告)日：2004-06-24

申请号：KR1020020080550

申请日：2002-12-17

Applicant: 한국전자통신연구원

Inventor： 서동우 ,  류호준 ,  손영준 ,  박용우 ,  백문철

IPC: G11B11/10

CPC classification number: G11B11/10582 ,  G11B11/10584 ,  G11B11/10591

Abstract: PURPOSE: A record layer of a magneto optical record media and its producing method are provided to increase a coercive force of a record layer by inducing an exchange coupling effect between the record layer and an adjacent sub layer so that it enhances a stability of a magnetic domain and a record density. CONSTITUTION: The media comprises a base plate(300), the first dielectric layer(310), a regeneration layer(320), the second dielectric layer(330), a sub layer(340), a record layer(350) and the third dielectric layer(360). The sub layer(340) is made of transition metal alloy. The sub layer(340) increases a coercive force of a magnetic domain of a record layer(320), storing data, by inducing an exchange coupling effect between the two layers(340, 320).

Abstract translation: 目的：提供磁光记录介质的记录层及其制造方法，以通过在记录层和相邻子层之间引起交换耦合效应来提高记录层的矫顽力，从而提高磁性记录介质的磁性 领域和记录密度。 构成：介质包括基板（300），第一介电层（310），再生层（320），第二介电层（330），子层（340），记录层（350）和 第三电介质层（360）。 子层（340）由过渡金属合金制成。 通过在两层（340,320）之间引起交换耦合效应，子层（340）增加记录层（320）的磁畴的矫顽力，从而存储数据。