公开(公告)号：US20060112873A1

公开(公告)日：2006-06-01

申请号：US10543655

申请日：2004-01-28

申请人： Kiyoshi Uchida ,  Yukio Sakashita ,  Atsushi Ohido

发明人： Kiyoshi Uchida ,  Yukio Sakashita ,  Atsushi Ohido

IPC分类号： C30B15/00 ,  C30B21/06 ,  C30B27/02 ,  C30B28/10 ,  C30B30/04

CPC分类号： H01F41/28 ,  C30B19/02 ,  C30B29/28 ,  G02F1/0036 ,  H01F10/24

摘要： A magnetic garnet single crystal film formation substrate 2 for growing a thick magnetic garnet single crystal film, wherein crystal defects, warps, cracks and flaking, etc. are not caused, by liquid phase epitaxial growth is provided. The substrate 2 comprises a base substrate 10 composed of a garnet-based single crystal being unstable with a flux used for the liquid phase epitaxial growth; a buffer layer 11a composed of a garnet-based single crystal thin film formed on a crystal growing surface 10a of said base substrate 10 and being stable with said flux; and a protective layer 11b formed at least on side surfaces 10b of said base substrate 10 crossing with said crystal growing surface of said base substrate 10 and being stable with said flux. By using the substrate, a high quality magnetic garnet single crystal film can be produced. The magnetic garnet single crystal film is used as an optical element, such as a Faraday element, used for an optical isolator, optical circulator and magneto-optical sensor, etc.

摘要翻译： 提供用于生长厚的石榴石单晶膜的磁性石榴石单晶膜形成基板2，其中通过液相外延生长不会引起晶体缺陷，翘曲，裂纹和剥落等。 基板2包括由用于液相外延生长的焊剂不稳定的基于石榴石的单晶构成的基底基板10; 由形成在所述基底基板10的结晶生长面10a上并与所述焊剂稳定的基于石榴石的单晶薄膜构成的缓冲层11a; 以及至少在所述基底基板10的与所述基底基板10的所述晶体生长面交叉的侧面10b上形成的保护层11b，并且与所述焊剂稳定。 通过使用基板，可以制造高品质的石榴石单晶膜。 磁性石榴石单晶膜用作用于光隔离器，光循环器和磁光传感器等的法拉第元件的光学元件。

公开(公告)号：US20060150893A1

公开(公告)日：2006-07-13

申请号：US10544099

申请日：2004-01-28

申请人： Kiyoshi Uchida ,  Yukio Sakashita ,  Atsushi Ohido

发明人： Kiyoshi Uchida ,  Yukio Sakashita ,  Atsushi Ohido

IPC分类号： C30B15/00 ,  C30B21/06 ,  C30B27/02 ,  C30B28/10 ,  C30B30/04

CPC分类号： C30B19/12 ,  C30B23/025 ,  C30B29/28

摘要： A method of producing a magnetic garnet single crystal film formation substrate 2 for growing a magnetic garnet single crystal film by liquid phase epitaxial growth is provided. First, a base substrate 10 composed of a garnet-based single crystal being unstable with a flux used for the liquid phase epitaxial growth is formed. Next, a buffer layer 11 composed of a garnet-based single crystal thin film formed at least on a crystal growing surface of said base substrate 10 and being stable with the flux is formed. When forming the buffer layer 11 on the base substrate 10, it is formed by a thin film formation method, such as sputtering, without heating the substrate 10 in a positive manner.

摘要翻译： 提供一种通过液相外延生长生产磁性石榴石单晶膜的磁性石榴石单晶成膜基板2的制造方法。 首先，形成由用于液相外延生长的焊剂不稳定的石榴石类单晶构成的基底基板10。 接下来，形成由至少在所述基底基板10的晶体生长面上形成且与焊剂稳定的基于石榴石的单晶薄膜构成的缓冲层11。 当在基底基板10上形成缓冲层11时，通过诸如溅射的薄膜形成方法形成，而不以积极的方式加热基板10。

公开(公告)号：US07695562B2

公开(公告)日：2010-04-13

申请号：US11647431

申请日：2006-12-29

申请人： Atsushi Ohido

发明人： Atsushi Ohido

IPC分类号： C30B29/28

CPC分类号： H01F1/346 ,  C30B19/04 ,  C30B29/28 ,  H01F10/24

摘要： It is an object of the present invention to provide a magnetic garnet single crystal at a reduced Pb content, and a method for producing the same and an optical element using the same. The object is attained with a magnetic garnet single crystal represented by the chemical formula BiαNaβM13-α-βFe5-γM2γO12 (M1 is at least one element selected from Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; and M2 is at least one element selected from Si, Ge and Ti, provided that 0.5

摘要翻译： 本发明的目的是提供一种Pb含量降低的磁性石榴石单晶及其制造方法和使用其的光学元件。 该目的是用化学式BiαNa＆bgr; M13-α-＆bgr; Fe5-γM2γO12表示的磁性石榴石单晶（M1是选自Y，La，Ce，Pr，Nd，Sm，Eu，Gd中的至少一种元素 ，Tb，Dy，Ho，Er，Tm，Yb和Lu; M2是选自Si，Ge和Ti中的至少一种元素，条件是0.5 <α＆nlE; 2.0,0 -α-＆bgr; <2.5和0 <γ＆nlE; 1.6）。

公开(公告)号：US20080095686A1

公开(公告)日：2008-04-24

申请号：US11666331

申请日：2005-11-17

申请人： Atsushi Ohido

发明人： Atsushi Ohido

IPC分类号： C30B19/00 ,  C01F17/00

CPC分类号： G02F1/0036 ,  C30B19/00 ,  C30B19/02 ,  C30B19/04 ,  C30B29/28 ,  G02F1/09

摘要： [Problem] The present invention relates to a magnetic garnet single crystal prepared by the liquid phase epitaxial (LPE) process and an optical element using the same as well as a method of producing the single crystal, for the purpose of providing a magnetic garnet single crystal at a reduced Pb content and an optical element using the same, as well as a method of producing the single crystal. [Means for Resolution] The magnetic garnet single crystal is grown by the liquid phase epitaxial process and is represented by the chemical formula BixNayPbzM13-x-y-zFe5-wM2wO12 (M1 is at least one element selected from Y, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; and M2 is at least one element selected from Ga, Al, In, Ti, Ge, Si and Pt, provided that 0.5

摘要翻译： 本发明涉及通过液相外延（LPE）工艺制备的石榴石单晶和使用其的光学元件以及制造单晶的方法，目的是提供一种磁性石榴石单 以及使用其的光学元件，以及制造该单晶的方法。 [解决方法]磁性石榴石单晶通过液相外延工艺生长，并由化学式Bi x Si z y Pb z z表示， （M1是选自至少一个元素）（M1是至少一个元素选择的） Y，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Yb和Lu中的至少一种元素; M2是选自Ga，Al，In，Ti，Ge，Si和Pt中的至少一种元素， x <= 2.0,0

公开(公告)号：US20070193506A1

公开(公告)日：2007-08-23

申请号：US11655070

申请日：2007-01-19

申请人： Atsushi Ohido

发明人： Atsushi Ohido

IPC分类号： C30B29/28 ,  C30B29/16 ,  C30B23/00

CPC分类号： C30B19/02 ,  C30B29/28

摘要： The invention relates to a method of producing an optical element using a garnet single crystal for the purpose of providing an optical element with a reduced Pb content or from which Pb can preliminarily be removed completely. By growing a garnet single crystal by using a solution containing Na, Bi and B by the LPE process and thermally treating the garnet single crystal in reducing atmosphere prepared by using nitrogen gas and/or hydrogen gas, the resulting thermally treated garnet single crystal is used to prepare an optical element.

摘要翻译： 本发明涉及一种使用石榴石单晶制造光学元件的方法，其目的在于提供一种具有降低的Pb含量的光学元件，或者可以预先完全去除Pb。 通过使用含有Na，Bi和B的溶液通过LPE工艺生长石榴石单晶，并在使用氮气和/或氢气制备的还原气氛中对石榴石单晶进行热处理，使用所得热处理的石榴石单晶 以制备光学元件。

公开(公告)号：US07133189B2

公开(公告)日：2006-11-07

申请号：US10366341

申请日：2003-02-14

申请人： Atsushi Ohido ,  Tamotsu Sugawara ,  Kazuhito Yamasawa ,  Shinichiro Kakei ,  Kazuya Shimakawa ,  Katsunori Hosoya

发明人： Atsushi Ohido ,  Tamotsu Sugawara ,  Kazuhito Yamasawa ,  Shinichiro Kakei ,  Kazuya Shimakawa ,  Katsunori Hosoya

IPC分类号： G02F1/00

CPC分类号： C30B19/02 ,  C30B29/28 ,  G02F1/0036 ,  G02F1/09 ,  H01F10/24 ,  H01F10/265 ,  H01F41/28

摘要： Proposed is a technique of producing a magnetic garnet material of which the light absorption characteristics worsen little even though it is produced through LPE. The crucible for LPE is formed of a material containing Au. The amount of Au to be taken in single crystal formed in an Au crucible is smaller than that of Pt to be taken therein formed in a Pt crucible. As compared with Pt, the influence of Au on magnetic garnet film that increases the insertion loss in the film is small.

公开(公告)号：US08142676B2

公开(公告)日：2012-03-27

申请号：US11704192

申请日：2007-02-09

申请人： Atsushi Ohido

发明人： Atsushi Ohido

IPC分类号： G02F1/09

CPC分类号： H01F1/346 ,  C04B35/2675 ,  C04B35/653 ,  C04B2235/3206 ,  C04B2235/3224 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/3418 ,  C04B2235/764 ,  C30B19/04 ,  C30B29/28 ,  G02F1/0036 ,  G02F1/09

摘要： The invention relates to a magnetic garnet single crystal and an optical element using the same, for the purpose of providing a magnetic garnet single crystal at a reduced Pb content, and an optical element using the same, where the magnetic garnet single crystal is represented by the chemical formula BiαM13-αFe5-β-γM2βM3γO12 (M1 is at least one element selected from Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; and M2 is Si; and M3 is at least one element selected from Zn, Ni, Cu and Mg, provided that 0.5

摘要翻译： 本发明涉及一种磁性石榴石单晶及使用其的光学元件，其目的在于提供一种降低的Pb含量的石榴石单晶以及使用其的光学元件，其中磁性石榴石单晶由 化学式BiαM13-αFe5-和bgr-γM2＆bgr;M3γO12（M1是选自Y，La，Ce，Pr，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Yb和 Lu; M2为Si; M3为选自Zn，Ni，Cu和Mg中的至少一种元素，条件是0.5 <α＆nlE; 2.0,0 <＆bgr;和0

公开(公告)号：US07187496B2

公开(公告)日：2007-03-06

申请号：US10382655

申请日：2003-03-07

申请人： Tamotsu Sugawara ,  Atsushi Ohido

发明人： Tamotsu Sugawara ,  Atsushi Ohido

IPC分类号： G02B27/28 ,  G02B5/30

CPC分类号： G02F1/093 ,  G02B1/02 ,  G02B27/286

摘要： There are provided a manufacturing method of an optical device excellent in expediency, and a technique for stably manufacturing a high performance optical device. After a single crystal film which constitutes a Faraday rotator and can exhibit a substantially rectangular magnetic hysteresis, is obtained, the single crystal film is magnetized in a state where this single crystal film is incorporated in an optical device such as an optical isolator. By performing a magnetizing step after the Faraday rotator is incorporated in the optical device, it becomes unnecessary to discriminate between the front and back surfaces of the single crystal film, and the characteristics of the optical device are also improved.

摘要翻译： 提供了一种方便性优异的光学装置的制造方法以及用于稳定制造高性能光学装置的技术。 在构成法拉第旋转器并且可呈现大致矩形磁滞的单晶膜之后，在将该单晶膜并入光隔离器等光学装置的状态下将单晶膜磁化。 通过在将法拉第旋转器并入光学装置之后执行磁化步骤，不需要区分单晶膜的正面和背面，并且还提高了光学装置的特性。

公开(公告)号：US06853473B2

公开(公告)日：2005-02-08

申请号：US10347264

申请日：2003-01-21

申请人： Atsushi Ohido ,  Kenichi Tohchi ,  Kazuhito Yamasawa ,  Shinichiro Kakei

发明人： Atsushi Ohido ,  Kenichi Tohchi ,  Kazuhito Yamasawa ,  Shinichiro Kakei

IPC分类号： G02F1/00 ,  G02F1/09

CPC分类号： G02F1/09 ,  G02F1/0036

摘要： The invention relates to an optical device for polarizing light by changing its Faraday rotation angle, such as optical attenuators, optical switches or polarization controllers; and its object is to provide such an optical device which can be driven even by small-sized and power-saving magnetic circuits and in which the insertion loss in the Faraday rotator may be reduced. The optical device comprises a Faraday rotator formed of a garnet single crystal, and a magnetic circuit applying an external magnetic field H that is smaller than the saturation magnetic field Hs of the Faraday rotator to the Faraday rotator.

摘要翻译： 本发明涉及通过改变其法拉第旋转角来偏振光的光学装置，例如光衰减器，光开关或偏振控制器; 其目的在于提供即使由小型省电磁路驱动的光学装置，也可以减小法拉第转子的插入损耗。 光学装置包括由石榴石单晶形成的法拉第旋转器，以及将小于法拉第旋转器的饱和磁场Hs的外部磁场H施加到法拉第旋转器的磁路。

公开(公告)号：US06775052B2

公开(公告)日：2004-08-10

申请号：US10328966

申请日：2002-12-24

申请人： Tamotsu Sugawara ,  Atsushi Ohido ,  Kazuhito Yamasawa

发明人： Tamotsu Sugawara ,  Atsushi Ohido ,  Kazuhito Yamasawa

IPC分类号： G02F100

CPC分类号： G02F1/09 ,  G02F1/0036 ,  H01F1/10

摘要： A hard magnetic Bi-substituted rare earth iron garnet material with excellent Faraday rotary moment, temperature property, wavelength property and insertion loss is provided. A Bi-substituted rare earth iron garnet material having a chemical composition of (Bi3−a−b−cGdaTbbYbc) Fe(5−w)MwO12 (where, M is at least one element selected from the group consisting of Ga, Al, Ge, Sc, In, Si and Ti, 0.5≦a+b+c≦2.5, 0.2≦w≦2.5) can be provided with hard magnetism and have excellent Faraday rotary moment, temperature property, wavelength property and insertion loss.

摘要翻译： 提供了具有优良法拉第旋转力矩，温度特性，波长特性和插入损耗的硬磁性双取代稀土铁石榴石材料。 具有化学组成为（Bi 3-ab-cGdaTbbYbc）Fe（5-w）MwO 12的Bi取代稀土铁石榴石材料（其中，M为选自Ga，Al，Ge，Sc中的至少一种元素 ，In，Si和Ti，0.5 <= a + b + c <= 2.5,0.2 <= w <= 2.5）可以提供硬磁性，具有优良的法拉第旋转力矩，温度特性，波长特性和插入损耗。