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1. 发明授权

US5920420A Faraday rotator with antireflection film 失效
标题翻译：带防反射膜的法拉第旋转器
公开(公告)号：US5920420A
公开(公告)日：1999-07-06
申请号：US899052
申请日：1997-07-23
申请人： Kenji Ishikura , Kiyonari Hiramatsu , Kazushi Shirai , Norio Takeda
发明人： Kenji Ishikura , Kiyonari Hiramatsu , Kazushi Shirai , Norio Takeda
IPC分类号： G01B11/00 , G02B1/11 , G02B5/30 , G02F1/09 , G02B1/08
CPC分类号： G02F1/093
摘要： A Faraday rotator is formed of a bismuth-substituted iron garnet single crystal film on which an antireflection film is formed. The antireflection film includes first, second, and third layers. The first layer is a layer of silicon dioxide. The second layer is a layer of tantalum pentoxide. The third layer is a layer of silicon dioxide. The first, second, and third layers are formed in this order from the atmosphere side on the bismuth-substituted iron garnet single crystal film. The antireflection film may be formed on both of opposing surfaces of the single crystal film.
摘要翻译：法拉第旋转器由其上形成有抗反射膜的铋取代的铁石榴石单晶膜形成。防反射膜包括第一层，第二层和第三层。第一层是一层二氧化硅。第二层是一层五氧化二钽。第三层是二氧化硅层。第一层，第二层和第三层从铋取代的铁石榴石单晶膜上的大气层依次形成。抗反射膜可以形成在单晶膜的两个相对表面上。

2. 发明授权

US5898516A Faraday rotator having a rectangular shaped hysteresis 失效
标题翻译：法拉第旋转器具有矩形滞后
公开(公告)号：US5898516A
公开(公告)日：1999-04-27
申请号：US867497
申请日：1997-06-02
申请人： Kazushi Shirai , Norio Takeda , Kiyonari Hiramatsu
发明人： Kazushi Shirai , Norio Takeda , Kiyonari Hiramatsu
IPC分类号： G02F1/09 , C30B19/12 , C30B29/28 , G01R33/032 , G02F1/00
CPC分类号： G01R33/0322
摘要： A Faraday rotator is formed of a bismuth-substituted iron garnet single crystal film grown by a liquid phase epitaxial method. The single crystal film is represented by a formula: Tb.sub.3-x Bi.sub.x Fe.sub.5-y-z Ga.sub.y Al.sub.z O.sub.12 wherein x has the range 1.1.ltoreq.x.ltoreq.1.5, y+z has the range 0.65.ltoreq.y+z.ltoreq.1.2, and z has the range z.ltoreq.y. The bismuth-substituted rare earth single crystal film is subjected to a magnetization process where the single crystal film is magnetized by an external magnetic field so that the film has a square magnetic hysteresis loop. The external magnetic field has a magnetic field strength of 1,000 Oe or higher and is applied in a direction normal to a surface of the bismuth-substituted rare earth iron garnet single crystal film.
摘要翻译：法拉第旋转器由通过液相外延法生长的铋取代的铁石榴石单晶膜形成。单晶膜由下式表示：Tb3-xBixFe5-y-zGayAlzO12，其中x具有1.1×1.6的范围，y + z具有范围0.65

3. 发明授权

US6031654A Low magnet-saturation bismuth-substituted rare-earth iron garnet single crystal film 失效
标题翻译：低磁饱和铋取代稀土铁石榴石单晶膜
公开(公告)号：US6031654A
公开(公告)日：2000-02-29
申请号：US81941
申请日：1998-05-21
申请人： Kiyonari Hiramatsu , Kazushi Shirai , Norio Takeda
发明人： Kiyonari Hiramatsu , Kazushi Shirai , Norio Takeda
IPC分类号： C30B29/28 , G02F1/00 , G02F1/09 , G02F1/095 , H01F10/24 , H01F41/28
CPC分类号： G02F1/0036 , H01F10/245 , H01F41/28 , G02F1/093 , G02F1/0955
摘要： A low magnetic saturation type bismuth-substituted rare-earth iron garnet crystal film of the invention is grown on a substrate of (111) garnet single crystal (GdCa)3(GaMgZr)5O12 by using a liquid phase epitaxial method. This single crystal has a lattice constant of 1.2497.+-.0.0002 nm and has a chemical structural formula expressed byTb.sub.3-x Bi.sub.x Fe.sub.5-y-z Ga.sub.y Al.sub.z O.sub.12wherein x has the range 1.25
摘要翻译：本发明的低磁饱和型铋取代的稀土铁石榴石晶体膜通过使用液相外延法在（111）石榴石单晶（GdCa）3（GaMgZr）5 O 12的基板上生长。该单晶的晶格常数为1.2497 +/- 0.0002nm，具有由Tb3-xBixFe5-y-zGayAlzO12表示的化学结构式，其中x为1.25

4. 发明授权

US5565131A Bismuth-substituted rare earth iron garnet single crystal 失效
标题翻译：铋取代稀土铁石榴石单晶
公开(公告)号：US5565131A
公开(公告)日：1996-10-15
申请号：US368914
申请日：1995-01-05
申请人： Kazushi Shirai , Kenji Ishikura , Norio Takeda
发明人： Kazushi Shirai , Kenji Ishikura , Norio Takeda
IPC分类号： G02F1/09 , C30B19/02 , C30B19/12 , C30B29/28 , G02F1/00 , H01F10/24 , C01G49/00
CPC分类号： H01F10/245 , C30B19/02 , C30B29/28 , G02F1/0036 , G02F1/093
摘要： A bismuth-substituted rare earth iron garnet single crystal film is represented by a general equation Tb.sub.x Lu.sub.y Bi.sub.3-x-y Fe.sub.5-z Al.sub.z O.sub.12 (where 0.09.ltoreq.y/x.ltoreq.0.23, 1.40.ltoreq.x+y.ltoreq.1.70, 0.20.ltoreq.z.ltoreq.0.38) grown on a non-magnetic garnet substrate (CaGd).sub.3 (MgZrGa).sub.5 O.sub.12 having a lattice constant of 12.490 .ANG.-12.500 .ANG. by a liquid phase epitaxial method. The bithmus-substituted rare earth iron garnet single crystal film satisfies three conditions that (1) the Faraday effect is large, i.e., the film thickness required for the Faraday rotator at a wavelength of 1.55 .mu.m is 450 .mu.m or less, (2) the saturated magnetic field is 800 (Oe) or less, and (3) the temperature coefficient .alpha. is 0.07 deg/.degree.C. or less.
摘要翻译：铋取代的稀土铁石榴石单晶膜由通式TbxLuyBi3-x-yFe5-zAlzO12表示（其中0.09≤y/x≤0.23，1.40≤x+ y <1.70，通过液相外延法在晶格常数为12.490 ANGSTROM -12.500 ANGSTROM的非磁性石榴石衬底（CaGd）3（MgZrGa）5O12上生长生长在0.20

5. 发明授权

US5512193A Low saturated magnetic field bismuth-substituted rare earth iron garnet single crystal and its use 失效
标题翻译：低饱和磁场铋取代稀土铁石榴石单晶及其应用
公开(公告)号：US5512193A
公开(公告)日：1996-04-30
申请号：US447592
申请日：1995-05-23
申请人： Kazushi Shirai , Kenji Ishikura , Norio Takeda
发明人： Kazushi Shirai , Kenji Ishikura , Norio Takeda
IPC分类号： C30B19/02 , C30B29/22 , C30B29/28 , G02F1/09 , H01F10/24
CPC分类号： H01F10/245 , C30B19/02 , C30B29/28
摘要： A bismuth-substituted rare earth iron garnet single crystal grown on a non-magnetic substrate having a lattice constant of 12.490 .ANG.-12.510 .ANG. by the liquid phase epitaxial method, and represented by a general equation:Gd.sub.x R.sub.y Bi.sub.3-x-y Fe.sub.5-z-w Ga.sub.z Al.sub.w O.sub.12where R denotes at least one element selected from the group consisting of yttrium (Y), ytterbium (Yb) and lutetium (Lu), and x, y, z and w are numerical values in the ranges 0.50.ltoreq.y/x.ltoreq.1.35, 1.40.ltoreq.x+y.ltoreq.1.90, 0.0.ltoreq.w/z.ltoreq.0.3 and 0.7.ltoreq.z+w.ltoreq.1.25. The magneto-optic optical switch or Faraday rotator constituted by the bismuth-constituted rare iron garnet is stably operable in a temperature range of -20.degree. C. to 60.degree. C. Because of the saturated magnetic field is 160 (Oe) or less, a magnetic field application device necessary to invert the magnetic field can be miniaturized.
摘要翻译：通过液相外延法在晶格常数为12.490 ANGSTROM -12.510 ANGSTROM的非磁性基板上生长的铋取代的稀土铁石榴石单晶，由通式如下：Gd x R y B i 3-x-y Fe 5-z-w Ga z Al w O 12 其中R表示选自钇（Y），镱（Yb）和镥（Lu）的至少一种元素，x，y，z和w是0.50≤y/ x < /=1,35,1.40，其中x = y = 1.90，0.0≤w/z≤0.3，0.7≤z+ w <1.25。由铋构成的稀有铁石榴石构成的磁光光开关或法拉第旋转体在-20℃〜60℃的温度范围内稳定可操作。由于饱和磁场为160（Oe）以下，能够使磁场反转所需的磁场施加装置小型化。

6. 发明授权

US5683506A Method of manufacturing a bismuth-substituted rare earth iron garnet single crystal film for short wavelength 失效
标题翻译：短波长铋取代稀土铁石榴石单晶膜的制造方法
公开(公告)号：US5683506A
公开(公告)日：1997-11-04
申请号：US664416
申请日：1996-06-17
申请人： Kazushi Shirai , Norio Takeda
发明人： Kazushi Shirai , Norio Takeda
IPC分类号： G02F1/09 , C30B19/02 , C30B19/10 , C30B29/28 , C30B33/00 , G02B27/28 , C30B19/04
CPC分类号： C30B19/02 , C30B29/28 , C30B33/00
摘要： A method of manufacturing a bismuth-substituted rare-earth iron garnet single crystal film used for short wavelengths, includes the steps of: manufacturing a BIG-grown substrate in an LPE furnace by the LPE method, the BIG-grown substrate having a bismuth-substituted rare-earth iron garnet single crystal film grown on one surface of a non-magnetic garnet single crystal substrate, the film having a thickness in the range of 20-100 .mu.m; spinning the BIG-grown substrate at a high speed to remove a melt adhering thereto prior to taking the BIG-grown substrate out of the LPE furnace; and cooling the BIG-grown substrate to 300.degree. C. within one minute.
摘要翻译：制造用于短波长的铋取代的稀土铁石榴石单晶膜的方法包括以下步骤：通过LPE法在LPE炉中制造BIG生长衬底，BIG生长衬底具有铋 - 在非磁性石榴石单晶衬底的一个表面上生长的取代的稀土铁石榴石单晶膜，该膜的厚度在20-100μm的范围内; 在将BIG生长的衬底从LPE炉中取出之前，高速旋转BIG生长衬底以去除附着在其上的熔体; 并在一分钟内将BIG生长的衬底冷却至300℃。

7. 发明授权

US06411641B1 Faraday rotator for use with high energy lasers 失效
标题翻译：法拉第旋转器用于高能激光器
公开(公告)号：US06411641B1
公开(公告)日：2002-06-25
申请号：US09370926
申请日：1999-08-10
申请人： Kazushi Shirai , Norio Takeda
发明人： Kazushi Shirai , Norio Takeda
IPC分类号： H01S308
CPC分类号： G02F1/093 , H01S3/0064 , Y10S372/703
摘要： A high-energy laser Faraday rotator is used in an optical system in which the Faraday rotator absorbs laser light energy of more than 20 mW. The Faraday rotator includes a bismuth-substituted rare-earth iron garnet single crystal film grown as a Faraday rotator by using a liquid phase epitaxial method, and non-magnetic substrate having a side surface on which the bismuth-substituted rare-earth iron garnet single crystal film is formed.
摘要翻译：高能激光法拉第旋转器用于其中法拉第转子吸收大于20mW的激光能量的光学系统中。法拉第旋转器包括通过使用液相外延法生长为法拉第旋转器的铋取代的稀土铁石榴石单晶膜和具有铋取代的稀土铁石榴石单面的侧表面的非磁性基板形成晶体膜。

8. 发明授权

US5925474A Bismuth-substituted rare earth iron garnet single crystal film 失效
标题翻译：铋取代稀土铁石榴石单晶膜
公开(公告)号：US5925474A
公开(公告)日：1999-07-20
申请号：US939446
申请日：1997-09-29
申请人： Kazushi Shirai , Norio Takeda
发明人： Kazushi Shirai , Norio Takeda
IPC分类号： G02F1/09 , C30B29/28 , G02B1/02 , G02F1/00 , H01F10/24 , H01F41/28 , G11B5/66
CPC分类号： H01F10/245 , G02F1/0036 , H01F41/28 , Y10S428/90 , Y10T428/26
摘要： A BIG film for a Faraday rotator is provided with a first antireflection film on the front surface and a second antireflection on the back surface. The first and second antireflection films differ in material or thickness and therefore differ in color. The difference in color makes it possible to visually distinguish the front surface from the back surface. The antireflection films of different colors may be applied to a BIG film with a square hysteresis which retains its magnetic saturation after an external magnetic field has been removed.
摘要翻译：用于法拉第旋转器的大片膜在前表面上设置有第一抗反射膜，在背面上设置第二抗反射膜。第一和第二抗反射膜的材料或厚度不同，因此颜色不同。颜色的差异使得可以在视觉上区分前表面和后表面。不同颜色的防反射膜可以施加到具有平方滞后的BIG膜，其在去除外部磁场之后保持其磁饱和。

9. 发明授权

US5493222A Reflection type magnetooptic sensor head with faraday rotator 失效
标题翻译：反射型磁光传感器头与法拉第旋转器
公开(公告)号：US5493222A
公开(公告)日：1996-02-20
申请号：US56881
申请日：1993-05-05
申请人： Kazushi Shirai , Toshihiro Shinbo , Norio Takeda , Mitsuzo Arii
发明人： Kazushi Shirai , Toshihiro Shinbo , Norio Takeda , Mitsuzo Arii
IPC分类号： G01P3/36 , G01P3/486 , G01R33/032
CPC分类号： G01R33/0322 , G01P3/36 , G01P3/486
摘要： A reflection type magnetooptic sensor head. The respective structural elements are aligned in the order of a light source, light inputting/outputting path, polarizer, Faraday rotator, and reflecting film. The Faraday rotator is made of a (111) bismuth-substituted iron garnet single crystal film. The Faraday rotator is positioned such that the optical axis of the light incident upon the surface of the Faraday rotator makes an angle of 10 to 70 degrees with an axis normal to the surface of the Faraday rotator. The sensor head may further include two identical rectangular prisms positioned such that the Faraday rotator is sandwiched between the slanting surfaces of the prisms.
摘要翻译：反射型磁光传感头。各个结构元件按光源，光输入/输出路径，偏振器，法拉第旋转器和反射膜的顺序排列。法拉第旋转器由（111）铋取代的铁石榴石单晶膜制成。法拉第旋转器的定位使得入射到法拉第旋转器表面的光的光轴与法拉第转子表面垂直的轴形成10度至70度的角度。传感器头还可以包括两个相同的矩形棱镜，这些棱镜定位成使得法拉第旋转器夹在棱镜的倾斜表面之间。

10. 发明授权

US5463316A Magnetooptic sensor head 失效
标题翻译：磁光传感器头
公开(公告)号：US5463316A
公开(公告)日：1995-10-31
申请号：US70684
申请日：1993-06-02
申请人： Kazushi Shirai , Toshihiro Shinbo , Norio Takeda , Mitsuzo Arii
发明人： Kazushi Shirai , Toshihiro Shinbo , Norio Takeda , Mitsuzo Arii
IPC分类号： G01R33/032 , G01R33/02
CPC分类号： G01R33/0322
摘要： A reflection type magnetooptic sensor head is disclosed. The respective structural elements are aligned following a light source in the order of a light inputting/outputting path, polarizer, Faraday rotator, and reflecting mirror. The Faraday rotator is made of a (111) bismuth-substituted iron garnet single crystal film having [111] axis at an angle of 5-60 degrees with an axis normal to the film surface. The reflecting mirror is positioned such that a light incident upon the reflecting mirror is substantially normal to the surface of the reflecting mirror.
摘要翻译：公开了一种反射型磁光传感器头。各个结构元件按照光输入/输出路径，偏振器，法拉第旋转器和反射镜的顺序在光源之后对准。法拉第旋转器由（111）铋取代的铁石榴石单晶膜制成，其具有垂直于膜表面的轴线，角度为5-60度的[111]轴。反射镜被定位成使得入射在反射镜上的光基本上垂直于反射镜的表面。

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