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1. 发明申请

US20090130476A1 Method of Forming Polarization Reversal Area, Apparatus thereof and Device Using it 失效
标题翻译：形成极化反转区域的方法，其装置及其使用的装置
公开(公告)号：US20090130476A1
公开(公告)日：2009-05-21
申请号：US12084061
申请日：2006-10-25
申请人： Xijun Li , Kazuya Terabe , Kenji Kitamura , Hideki Hatano
发明人： Xijun Li , Kazuya Terabe , Kenji Kitamura , Hideki Hatano
IPC分类号： H01F1/047 , B01J19/08 , B05C11/00 , C23F1/08 , B44C1/22
CPC分类号： G02F1/3558 , Y10T428/12465
摘要： Provided are a method and an apparatus for forming a nanometer-order polarization-reversed region in a ferroelectric single crystal, and a device using the ferroelectric single crystal.The method according to the present invention for forming a polarization-reversed region in a ferroelectric single crystal includes the steps of grounding a first surface of the ferroelectric single crystal, and irradiating a second surface of the ferroelectric single crystal opposite to the first surface with an ion beam. The ion beam is irradiated such that the charge density Q (μC/cm2) accumulated on the second surface irradiated with the ion beam satisfies the following relationship: 0.7×Ps≦Q≦5×Ps where Ps is the spontaneous polarization (μC/cm2) of the ferroelectric single crystal.
摘要翻译：提供了一种用于在铁电单晶中形成纳米级极化反转区域的方法和装置，以及使用铁电单晶的器件。根据本发明的用于在铁电单晶中形成极化反转区域的方法包括以下步骤：将铁电单晶的第一表面接地，并将第一表面相对的铁电单晶的第二表面与离子束。照射离子束使得在离子束照射的第二表面上积聚的电荷密度Q（μC/ cm 2）满足以下关系：<？in-line-formula description =“In-line formula”end =“lead “？> 0.7xP <= Q <= 5xP <？in-line-formula description =”In-line Formulas“end =”tail“？>其中Ps是铁电单晶的自发极化（μC/ cm2）。

2. 发明授权

US06856433B2 Holographic recording medium and holographic recording/reproducing apparatus using the same 失效
标题翻译：全息记录介质和全息记录/再现装置
公开(公告)号：US06856433B2
公开(公告)日：2005-02-15
申请号：US10656879
申请日：2003-09-08
申请人： Hideki Hatano , Takashi Yamaji , Kenji Kitamura , Shunji Takekawa , Masaru Nakamura
发明人： Hideki Hatano , Takashi Yamaji , Kenji Kitamura , Shunji Takekawa , Masaru Nakamura
IPC分类号： G03H1/02 , G03H1/26 , G06K19/06 , G11B7/0065
CPC分类号： G03H1/02 , G03H2001/0491 , G03H2260/54 , G11B7/0065
摘要： A holographic recording medium exhibiting a high recording sensitivity without execution of reduction treatment. A system records information on the holographic recording medium by using a gating light within a wavelength band causing less optical damage to the holographic recording medium. The holographic recording medium includes a single crystal of lithium niobate (LiNbO3) or lithium tantalate (LiTaO3) containing Mn as a dopant.
摘要翻译：具有高记录灵敏度的全息记录介质，而不执行还原处理。系统通过使用波长带内的门控光对全息记录介质造成更少的光学损伤来在全息记录介质上记录信息。全息记录介质包括含有Mn作为掺杂剂的铌酸锂（LiNbO 3）或钽酸锂（LiTaO 3）的单晶。

3. 发明授权

US06535472B1 Hologram recording apparatus and method therefor 失效
标题翻译：全息记录装置及其方法
公开(公告)号：US06535472B1
公开(公告)日：2003-03-18
申请号：US09631646
申请日：2000-08-02
申请人： Myeongkyu Lee , Kenji Kitamura , Yasunori Furukawa , Shunji Takekawa , Hideki Hatano
发明人： Myeongkyu Lee , Kenji Kitamura , Yasunori Furukawa , Shunji Takekawa , Hideki Hatano
IPC分类号： G11B700
CPC分类号： G11B7/1275 , G03H2001/026 , G03H2001/0268 , G11B7/0025 , G11B7/0065 , G11B7/243 , G11B2007/0009 , G11B2007/24306 , G11B2007/2432
摘要： A hologram recording apparatus is capable of directing interferable signal light and reference light into a hologram recording medium to record an information signal carried by the signal light. The hologram recording medium is sensitive to a first light at a first wavelength in an ultraviolet or short-wavelength visible light band to develop light induced absorption. The apparatus includes a light source for irradiating the hologram recording medium with the first light, and a laser light source for irradiating the hologram recording medium with signal light and reference light at a second wavelength longer than the first wavelength after the first light is irradiated.
摘要翻译：全息记录装置能够将干涉信号光和参考光引导到全息图记录介质中，以记录由信号光携带的信息信号。全息图记录介质对紫外或短波长可见光波段中的第一波长的第一光敏感，以产生光吸收。该装置包括用于照射第一光的全息图记录介质的光源和用于在第一光照射之后以比第一波长长的第二波长的信号光和参考光照射全息图记录介质的激光光源。

4. 发明授权

US06320683B1 Optical information recording and reproducing apparatus using a volume holographic memory 失效
标题翻译：使用体积全息存储器的光信息记录和再现装置
公开(公告)号：US06320683B1
公开(公告)日：2001-11-20
申请号：US09538154
申请日：2000-03-29
申请人： Yoshihisa Ito , Tomomitsu Kouno , Hideki Hatano , Takashi Yamaji , Satoru Tanaka , Hajime Matsushita
发明人： Yoshihisa Ito , Tomomitsu Kouno , Hideki Hatano , Takashi Yamaji , Satoru Tanaka , Hajime Matsushita
IPC分类号： G03H126
CPC分类号： G11B7/08564 , G03H1/26 , G03H1/265 , G03H2001/026 , G03H2001/0268 , G11B7/0065
摘要： A description is provided of an optical information recording and reproducing apparatus which detachably supports a volume holographic memory formed of a photorefractive crystal. The apparatus includes a portion for supplying a coherent reference light beam at a first wavelength into the volume holographic memory; a portion for supplying a coherent signal light beam at the first wavelength, modulated in accordance with image data, into the memory to produce an optical interference pattern with the reference light within the memory; a portion for supplying a gate light beam at a second wavelength into the memory for activating or deactivating an index grating in accordance with the presence or absence of the optical interference pattern to enhances a photo-sensitivity of the memory; and a detector for detecting diffraction light from the index grating of the memory by the irradiation of the reference light beam. The apparatus includes a scanning portion for moving an intersecting region in which the gate light beam, the signal light beam and the reference light beam intersect with one another within the volume holographic memory along an optical axis of an optical path of the signal light beam within the volume holographic memory.
摘要翻译：提供了可拆卸地支撑由光折射晶体形成的体积全息存储器的光学信息记录和再现装置的描述。该装置包括用于将第一波长的相干参考光束提供到体积全息存储器中的部分; 用于将根据图像数据调制的第一波长的相干信号光束提供到存储器中以产生与存储器内的参考光的光学干涉图案的部分; 用于根据存在或不存在光学干涉图案来将第二波长的栅极光束提供到存储器中用于激活或去激活索引光栅的部分，以增强存储器的光敏性; 以及用于通过照射参考光束来检测来自存储器的索引光栅的衍射光的检测器。该装置包括扫描部分，用于移动其中栅极光束，信号光束和参考光束沿着信号光束的光路的光轴在体积全息存储器内彼此相交的相交区域体积全息记忆体。

5. 发明授权

US06301028B1 Holographic memory and optical information recording and reproducing apparatus using the same 失效
标题翻译：全息存储器和使用其的光信息记录和再现装置
公开(公告)号：US06301028B1
公开(公告)日：2001-10-09
申请号：US09533763
申请日：2000-03-23
申请人： Satoru Tanaka , Tomomitsu Kouno , Hideki Hatano , Yoshihisa Itoh , Hajime Matsushia , Takashi Yamaji
发明人： Satoru Tanaka , Tomomitsu Kouno , Hideki Hatano , Yoshihisa Itoh , Hajime Matsushia , Takashi Yamaji
IPC分类号： G03H126
CPC分类号： G03H1/265 , G03H1/26 , G03H2001/026 , G03H2001/0268 , G03H2223/12 , G11B7/0025 , G11B7/0065
摘要： A description is provided of an optical information recording and reproducing apparatus employing a holographic memory. The apparatus includes a mask disposed in an optical path of the signal light beam so as to cover a light intensity distribution of the signal light beam incident into the holographic memory at nearly a half portion thereof with respect to the center of the distribution of the zeroth-order diffracted light of the signal light beam. The center of a region of the holographic memory where the signal light beam and the reference light beam intersect with each other, is shifted by a distance substantially equal to twice the distance between peaks of the zeroth-order diffracted light or the first-order diffracted light of the signal light beam.
摘要翻译：提供了使用全息存储器的光学信息记录和再现装置的描述。该装置包括设置在信号光束的光路中的掩模，以便覆盖入射到全息存储器中的相对于零分布的中心的近半部分的信号光束的光强度分布信号光束的衍射光。信号光束和参考光束彼此相交的全息存储器的区域的中心偏移大致等于零级衍射光或第一级衍射光的峰值之间的距离的两倍信号光束的光。

6. 发明授权

US06256281B1 Volume holographic memory-based optical information-recording/reproducing apparatus 失效
标题翻译：基于体全息存储器的光信息记录/再现装置
公开(公告)号：US06256281B1
公开(公告)日：2001-07-03
申请号：US09275430
申请日：1999-03-24
申请人： Satoru Tanaka , Takashi Yamaji , Hideki Hatano
发明人： Satoru Tanaka , Takashi Yamaji , Hideki Hatano
IPC分类号： G11B700
CPC分类号： G03H1/0248 , G11C13/042
摘要： A volume holographic memory-based optical information-recording/reproducing apparatus being capable of controlling an interference area formed by a reference beam and a signal beam within a recording medium more easily than by waveform shaping using a lens. A recording medium is installed in the apparatus for recording a three-dimensional optical interference pattern formed by at least two coherent light beams as spatial changes in refractive index of the recording medium. A signal beam optical system transmits a coherent signal beam to the recording medium through a Fourier transform lens. A reference beam optical system transmits a coherent reference beam to the recording medium. The reference beam intersects the signal beam within the recording medium, and an angle of intersection between the reference beam and the signal beam is changed. Diffracted light of the reference beam diffracted from the recording medium is detected. Light intensity distribution-offset element is arranged in both of optical paths of the signal and reference beam optical systems, for controlling a distribution of a light intensity of the signal beam and a light intensity of the reference beam, respectively, within an area in the recording medium in which the signal beam and the reference beam intersect with each other.
摘要翻译：一种基于体积全息存储器的光学信息记录/再现装置，其能够比通过使用透镜的波形整形更容易地控制由记录介质内的参考光束和信号光束形成的干涉区域。记录介质安装在用于记录由至少两个相干光束形成的三维光学干涉图案的装置中，作为记录介质的折射率的空间变化。信号光束光学系统通过傅立叶变换透镜将相干信号光束传输到记录介质。参考光束光学系统将相干参考光束传输到记录介质。参考光束与记录介质内的信号光束相交，参考光束和信号光束之间的交点变化。检测从记录介质衍射的参考光束的衍射光。光强分布偏移元件被布置在信号和参考光束光学系统的光路中，用于分别控制信号光束的光强度和参考光束的光强度的分布，信号光束和参考光束彼此相交的记录介质。

7. 发明授权

US6088321A Volume holographic memory apparatus having a reference beam and a signal beam with opposite intensity distributions 有权
标题翻译：具有参考光束和具有相反强度分布的信号光束的体积全息存储装置
公开(公告)号：US6088321A
公开(公告)日：2000-07-11
申请号：US274969
申请日：1999-03-23
申请人： Takashi Yamaji , Hideki Hatano , Satoru Tanaka
发明人： Takashi Yamaji , Hideki Hatano , Satoru Tanaka
IPC分类号： G11B7/00 , G03H1/04 , G03H1/12 , G03H1/16 , G03H1/22 , G03H1/26 , G11B7/0065 , G11B7/135 , G11C13/04 , G03H1/00
CPC分类号： G03H1/12 , G03H1/0248 , G11C13/042
摘要： A volume holographic memory-based optical information-recording/reproducing apparatus is capable of enhancing density of spatial multiple recording. A recording medium is mounted in the apparatus for recording a three-dimensional optical interference pattern formed by at least two coherent light beams as spatial changes in refractive index of the recording medium. A signal beam optical system supplies a coherent signal beam to the recording medium through a Fourier transform lens. A reference beam optical system supplies a coherent reference beam to the recording medium. The reference beam is caused to intersect with the signal beam within the recording medium and an angle of intersection between the reference beam and the signal beam is changed. Diffracted light of the reference beam diffracted from the recording medium is detected. Spatial beam modulating means is arranged in the optical path of the reference beam optical system for limiting light intensity of the reference beam in a manner such that a cross section of the reference beam in the recording medium has a light intensity distribution opposite to a light intensity distribution of the signal beam in the recording medium.
摘要翻译：基于体积全息存储器的光信息记录/再现装置能够增强空间多重记录的密度。记录介质安装在用于记录由至少两个相干光束形成的三维光学干涉图案的设备中，作为记录介质的折射率的空间变化。信号光束光学系统通过傅立叶变换透镜将相干信号光束提供给记录介质。参考光束光学系统向记录介质提供相干参考光束。使参考光束与记录介质内的信号光束相交，参考光束和信号光束之间的交点变化。检测从记录介质衍射的参考光束的衍射光。空间光束调制装置被布置在参考光束光学系统的光路中，用于以使得记录介质中的参考光束的横截面具有与光强度相反的光强度分布的方式限制参考光束的光强度信号光束在记录介质中的分布。

8. 发明授权

US4550346A Magneto-optic information recording system 失效
标题翻译：磁光信息记录系统
公开(公告)号：US4550346A
公开(公告)日：1985-10-29
申请号：US484998
申请日：1983-04-14
申请人： Hideki Hatano
发明人： Hideki Hatano
IPC分类号： G11B5/02 , G11B11/10 , G11B11/105 , H04N5/78 , H04N9/82 , H04N9/83 , H04N9/85 , G11B11/00
CPC分类号： H04N9/83 , G11B11/1051 , G11B11/10515 , G11B11/10536 , H04N5/7805
摘要： A magneto-optic information recording system for recording colorplexed composite video information on a magneto-optic information storage medium having a normal magnetization film, comprising means for emitting a recording laser beam to irradiate the normal magnetization film in the presence of a bias magnetic field; a field induction coil to induce the bias magnetic field; a low-pass filter for extracting a luminance signal component from the composite video information; a modulator to modulate the laser beam in accordance with the signal component extracted by the low-pass filter; a band-pass filter for extracting a carrier chrominance signal component from the composite video information; a frequency converter for converting the carrier chrominance signal component into a signal with a predetermined frequency lower than the frequency of the color subcarrier; and field control means responsive to the frequency-converted chrominance signal component and operative to vary the bias magnetic field in accordance with the frequency-converted chrominance signal component while the normal magnetization film is being irradiated with the modulated recording beam of light.
摘要翻译：一种用于在具有普通磁化膜的磁光信息存储介质上记录复合复合视频信息的磁光信息记录系统，包括用于在存在偏磁场的情况下发射记录激光束照射正常磁化膜的装置; 场感应线圈引起偏磁场; 低通滤波器，用于从所述复合视频信息中提取亮度信号分量; 调制器，用于根据由低通滤波器提取的信号分量来调制激光束; 带通滤波器，用于从复合视频信息中提取载波色度信号分量; 频率转换器，用于将载波色度信号分量转换成具有比彩色副载波的频率低的预定频率的信号; 以及场控制装置，其响应于所述频率转换的色度信号分量，并且在通过调制的记录光束照射正常磁化膜的同时，根据频率转换的色度信号分量来改变偏置磁场。

9. 发明授权

US06414762B1 Optical information recording and reproducing apparatus using a holographic memory 失效
标题翻译：使用全息存储器的光信息记录和再现装置
公开(公告)号：US06414762B1
公开(公告)日：2002-07-02
申请号：US09651739
申请日：2000-03-23
申请人： Takashi Yamaji , Tomomitsu Kouno , Hideki Hatano , Yoshihisa Itoh , Satoru Tanaka , Hajime Matsushita
发明人： Takashi Yamaji , Tomomitsu Kouno , Hideki Hatano , Yoshihisa Itoh , Satoru Tanaka , Hajime Matsushita
IPC分类号： G03H102
CPC分类号： G11B7/0065 , G03H1/26 , G03H1/265 , G03H2001/026 , G03H2001/0268 , G11B7/0025
摘要： An optical information recording and reproducing apparatus, which detachably supports a holographic memory formed of a photorefractive crystal, includes a portion for supplying a coherent reference light beam at a first wavelength into the holographic memory; a portion for supplying a coherent signal light beam at the first wavelength, modulated in accordance with image data, into the memory to produce an optical interference pattern with the reference light within the memory; a portion for supplying a gate light beam at a second wavelength into the memory for activating or deactivating an index grating in accordance with the presence or absence of the optical interference pattern to enhance a photo-sensitivity of the memory; a detector for detecting diffraction light from the index grating of the memory by the irradiation of the reference light beam; and a portion for changing and regulating a light intensity of the gate light beam.
摘要翻译：一种可拆卸地支撑由光折射晶体形成的全息存储器的光学信息记录和再现装置，包括用于将第一波长的相干参考光束提供给全息存储器的部分; 用于将根据图像数据调制的第一波长的相干信号光束提供到存储器中以产生与存储器内的参考光的光学干涉图案的部分; 用于根据存在或不存在光学干涉图案来将第二波长的栅极光束提供到存储器中以激活或去激活索引光栅的部分，以增强存储器的光敏性; 用于通过照射参考光束来检测来自存储器的索引光栅的衍射光的检测器; 以及用于改变和调节栅极光束的光强度的部分。

10. 发明授权

US6049401A Volume holographic memory 失效
标题翻译：体积全息记忆
公开(公告)号：US6049401A
公开(公告)日：2000-04-11
申请号：US166467
申请日：1998-10-05
申请人： Satoru Tanaka , Hideki Hatano , Takashi Yamaji
发明人： Satoru Tanaka , Hideki Hatano , Takashi Yamaji
IPC分类号： G03H1/02 , G03H1/04 , G11B7/0065 , G11C13/04
CPC分类号： G11C13/042 , G03H1/0248
摘要： A volume holographic memory whose three-dimensional photosensitive body has exposed portions comprised only of continuous faces prevents recording of noise caused by scattered light at the time of light irradiation.
摘要翻译：其三维感光体具有仅由连续面构成的曝光部的体积全息记录，防止在光照射时由散射光引起的噪声的记录。

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