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    Waveguide type optical device using large third order non-linearity optical material and method for operating the same
    3.
    发明授权
    Waveguide type optical device using large third order non-linearity optical material and method for operating the same 有权
    使用大型三阶非线性光学材料的波导型光学器件及其操作方法

    公开(公告)号：US07181114B2

    公开(公告)日：2007-02-20

    申请号：US10987709

    申请日：2004-11-12

    申请人： Taek-Sung Lee ,  Kyeong Seok Lee ,  Won-Mok Kim ,  Byung-Ki Cheong ,  In-Ho Kim

    发明人： Taek-Sung Lee ,  Kyeong Seok Lee ,  Won-Mok Kim ,  Byung-Ki Cheong ,  In-Ho Kim

    IPC分类号： G02B6/26

    CPC分类号： G02F1/3517 ,  G02B2006/12142 ,  G02B2006/12145 ,  G02B2006/12147 ,  G02F1/3521

    摘要： Disclosed is a waveguide type optical device utilizing a nonlinear refractive index change according to a large 3rd order nonlinear optical phenomenon. The waveguide type optical device includes a signal beam waveguide through which a signal beam propagates; and a pump beam waveguide through which a pump beam propagates, wherein the pump beam waveguide is disposed adjacent to the signal beam waveguide so that the pump beam can be coupled to the signal beam waveguide, the signal beam waveguide is made of nonlinear optical materials with large 3rd order nonlinear optical property and the pump beam waveguide is made of linear optical materials, and the wavelength range of the signal beam is different from that of the pump beam. By such a structure, the pump beam is coupled to one arm of the signal beam waveguide, thereby generating a 3rd nonlinear phenomenon on one arm of the waveguide through which the signal beam passes. Therefore, the waveguide optical device which implements an all-optical communication device operating as an optical device and can be integrated is provided.

    摘要翻译： 公开了一种使用根据大的3阶非线性光学现象的非线性折射率变化的波导型光学器件。 波导型光学器件包括信号光束波导，信号光束通过该波导波导传播; 以及泵浦光束通过其传播的泵浦波导，其中所述泵浦波导与所述信号光束波导相邻设置，使得所述泵浦波束可以耦合到所述信号波导管，所述信号波束波导由非线性光学材料制成， 大的3阶非线性光学特性和泵浦波导由线性光学材料制成，信号光束的波长范围与泵浦光束的波长范围不同。 通过这种结构，泵浦光束耦合到信号光束波导的一个臂，从而在信号光束通过的波导的一个臂上产生第三个非线性现象。 因此，提供了实现作为光学装置工作并可以集成的全光通信装置的波导光学装置。

    Optical recording medium having first and second super-resolution layers
    4.
    发明授权
    Optical recording medium having first and second super-resolution layers 失效
    具有第一和第二超分辨率层的光学记录介质

    公开(公告)号：US06961300B2

    公开(公告)日：2005-11-01

    申请号：US10186016

    申请日：2002-06-28

    申请人： Byung-ki Cheong ,  Soon-Gwang Kim ,  Won-Mok Kim ,  Moonkyo Chung ,  Taek-Sung Lee ,  Sung-Jin Park ,  Sung-Hun Lee ,  Sung-Hun Cho

    发明人： Byung-ki Cheong ,  Soon-Gwang Kim ,  Won-Mok Kim ,  Moonkyo Chung ,  Taek-Sung Lee ,  Sung-Jin Park ,  Sung-Hun Lee ,  Sung-Hun Cho

    IPC分类号： G11B7/004 ,  G11B7/243 ,  G11B7/246 ,  G11B7/24

    CPC分类号： G11B7/246 ,  G11B7/24 ,  G11B7/243 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

    摘要： The present invention provides an optical recording medium in which the spot size of incident laser beam, focused on the medium by a far-field optic system characterized by λ and NA, is further reduced and maintained below the diffraction-limited size by means of material characteristics of the medium while reproducing from and recording on the information layer of the recording medium, thus making it possible to record and reproduce a high density of information exceeding the resolution limit of the optic system.A high density optical recording medium according to the present invention adopts a combination of two different super-resolution layers of mutually complementary optical characteristics with increasing light power.The combination of two super-resolution layers is made in either of two different types: for one type, each of the two super-resolution layers, having a respective threshold light intensity (or temperature) for the onset of change in optical transmittance, produces an increasing spot size of the transmitted beam with increasing light power once a respective threshold light intensity (or temperature) is exceeded, and for the other type, one layer produces an increasing spot size of the transmitted beam with increasing light power whereas the other layer exhibits a reverse trend.

    摘要翻译： 本发明提供了一种光记录介质，其中通过以λ和NA为特征的远场光学系统聚焦在介质上的入射激光束的光斑尺寸进一步减小并通过材料保持在衍射受限尺寸以下 在从记录介质的信息层再现和记录介质的同时，能够记录和再现超过光学系统的分辨率极限的高密度信息。 根据本发明的高密度光学记录介质采用具有增加的光功率的互补光学特性的两个不同的超分辨率层的组合。 两个超分辨率层的组合以两种不同类型中的任一种制成：对于一种类型，两个超分辨率层中的每一个具有用于光透射率变化开始的相应的阈值光强度（或温度），产生 一旦超过相应的阈值光强度（或温度），一旦增加了光功率，透射光束的斑点尺寸就会增加，而另一种类型，一层产生随着光功率的增加的透射光束的光斑尺寸，而另一层 呈现逆向趋势。

    Waveguide type optical device using large 3rd non-linear optical material and method for operating the same
    5.
    发明申请
    Waveguide type optical device using large 3rd non-linear optical material and method for operating the same 有权
    使用大型第3非线性光学材料的波导型光学器件及其操作方法

    公开(公告)号：US20050105864A1

    公开(公告)日：2005-05-19

    申请号：US10987709

    申请日：2004-11-12

    申请人： Taek-Sung Lee ,  Kyeong Lee ,  Won-Mok Kim ,  Byung-Ki Cheong ,  In-Ho Kim

    发明人： Taek-Sung Lee ,  Kyeong Lee ,  Won-Mok Kim ,  Byung-Ki Cheong ,  In-Ho Kim

    IPC分类号： G02B6/12 ,  G02F1/35 ,  G02B6/00

    CPC分类号： G02F1/3517 ,  G02B2006/12142 ,  G02B2006/12145 ,  G02B2006/12147 ,  G02F1/3521

    摘要： Disclosed is a waveguide type optical device utilizing a nonlinear refractive index change according to a large 3rd order nonlinear optical phenomenon. The waveguide type optical device includes a signal beam waveguide through which a signal beam propagates; and a pump beam waveguide through which a pump beam propagates, wherein the pump beam waveguide is disposed adjacent to the signal beam waveguide so that the pump beam can be coupled to the signal beam waveguide, the signal beam waveguide is made of nonlinear optical materials with large 3rd order nonlinear optical property and the pump beam waveguide is made of linear optical materials, and the wavelength range of the signal beam is different from that of the pump beam. By such a structure, the pump beam is coupled to one arm of the signal beam waveguide, thereby generating a 3rd nonlinear phenomenon on one arm of the waveguide through which the signal beam passes. Therefore, the waveguide optical device which implements an all-optical communication device operating as an optical device and can be integrated is provided.

    摘要翻译： 公开了一种使用根据大的3阶非线性光学现象的非线性折射率变化的波导型光学器件。 波导型光学器件包括信号光束波导，信号光束通过该波导波导传播; 以及泵浦光束通过其传播的泵浦波导，其中所述泵浦波导与所述信号光束波导相邻设置，使得所述泵浦波束可以耦合到所述信号波导管，所述信号波束波导由非线性光学材料制成， 大的3阶非线性光学特性和泵浦波导由线性光学材料制成，信号光束的波长范围与泵浦光束的波长范围不同。 通过这种结构，泵浦光束耦合到信号光束波导的一个臂，从而在信号光束通过的波导的一个臂上产生第三非线性现象。 因此，提供了实现作为光学装置工作并可以集成的全光通信装置的波导光学装置。

    Optical recording material and optical recording medium using same
    6.
    发明授权
    Optical recording material and optical recording medium using same 有权
    光记录材料和使用其的光记录介质

    公开(公告)号：US06753059B2

    公开(公告)日：2004-06-22

    申请号：US10138232

    申请日：2002-05-01

    申请人： Byung-ki Cheong ,  Soon-Gwang Kim ,  Won-Mok Kim ,  Taek-Sung Lee ,  Sung-Jin Park ,  Tae-Yon Lee ,  Ki-Bum Kim

    发明人： Byung-ki Cheong ,  Soon-Gwang Kim ,  Won-Mok Kim ,  Taek-Sung Lee ,  Sung-Jin Park ,  Tae-Yon Lee ,  Ki-Bum Kim

    IPC分类号： B32B302

    CPC分类号： G11B7/2433 ,  G11B7/2531 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10T428/21

    摘要： Disclosed in this invention is a phase change optical recording material for a rewritable recording medium with a high speed crystallization and excellent erasibility, which comprises a composition having the formula of: (AaBbCc)x(GeaSbbTec)1−x wherein, A is an element selected from the elements belonging to the IVB group in the periodic table; B is an element selected from the elements belonging to the VB group in the periodic table; C is an element selected from the elements belonging to the VIB group in the periodic table; a, b and c are atomic ratios; x is a mole fraction in the range of 0 to 1; and at least one of A, B and C has a higher atomic number and thus a smaller diatomic bond strength than that of the corresponding element in the GeSbTe part.

    摘要翻译： 本发明公开了一种用于具有高速结晶和优异的可擦除性的可重写记录介质的相变光学记录材料，其包括具有下式的组合物：其中，A是选自属于IVB基团的元素的元素 周期表; B是从属于周期表中的VB组的元素中选择的元素; C是从属于周期表中的VIB基的元素中选出的元素; a，b和c是原子比; x是0至1范围内的摩尔分数; 并且A，B和C中的至少一个具有比GeSbTe部分中的相应元素更高的原子数，因此具有更小的双原子键强度。