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    • 1. 发明申请
    • SIGNAL WAVEFORM MEASURING APPARATUS AND MEASURING METHOD
    • 信号波形测量装置和测量方法
    • US20100219359A1
    • 2010-09-02
    • US12550895
    • 2009-08-31
    • Hiroyasu FUJIWARATadashi KawazoeMotoichi Ohtsu
    • Hiroyasu FUJIWARATadashi KawazoeMotoichi Ohtsu
    • H01J40/14
    • G01J11/00
    • A signal waveform measuring apparatus 1A is configured from: a signal optical system 11, a reference optical system 16, a time difference setting unit 12 setting a time difference between signal light L1 and reference light L2, a wavelength conversion element 20 including an aggregate of crystals of a dye molecule and generating converted light L5, which has been wavelength-converted to a shorter wavelength than incident light made incident on the crystal aggregate, at an intensity proportional to an r-th power (r>1) of the intensity of the incident light, a photodetector 30 detecting the converted light L5, generated at the element 20 at the intensity that is in accordance with the intensity of the signal light L1, the intensity of the reference light L2, and the time difference between the two, and a signal waveform analyzer 40 performing analysis of the detection result of the converted light L5 and thereby acquiring a time waveform of the signal light L1. A signal waveform measuring apparatus and a measuring method that enable a time waveform of signal light to be measured with good precision by a simple configuration are thereby realized.
    • 信号波形测量装置1A由信号光学系统11,参考光学系统16,设置信号光L1和参考光L2之间的时间差的时差设定单元12构成,波长转换元件20包括 并且以与入射到晶体聚集体上的入射光波长转换为更短波长的转换光L5的强度成比例的第r次幂(r> 1) 入射光,检测在元件20处以与信号光L1的强度相关的强度,参考光L2的强度和两者之间的时间差产生的转换光L5的光电检测器30, 以及信号波形分析器40,对转换光L5的检测结果进行分析,从而获取信号光L1的时间波形。 从而实现了通过简单的结构实现以高精度测量信号光的时间波形的信号波形测量装置和测量方法。
    • 3. 发明授权
    • Optical fiber probe, optical detection device, and optical detection method
    • 光纤探头,光学检测装置和光学检测方法
    • US07586084B2
    • 2009-09-08
    • US11547032
    • 2006-02-02
    • Izumi ItohMasato TakadaTaroh TerashiMotoichi OhtsuTakashi YatsuiMotonobu Kourogi
    • Izumi ItohMasato TakadaTaroh TerashiMotoichi OhtsuTakashi YatsuiMotonobu Kourogi
    • G02B6/26
    • G01Q60/22
    • An optical detection device image is disclosed that allows fast measurements using near-field light at high resolution and high efficiency but without necessity of position alignment of an optical fiber probe. The optical detection device includes an optical fiber probe having a core for propagating light with an optical probe being formed at a front end of the core; a movement control unit to move the optical fiber probe to approach or depart from a sample; and a detection unit to detect light from the sample surface, wherein on the front end surface of the core of the optical probe, there are a first exit section on a peripheral side for emitting propagating light and a second exit section for seeping out the near-field light, the first exit section and the second exit section are formed in a concentric manner, and the tilt angle of the first exit section is different from the tilt angle of the second exit section.
    • 公开了一种光学检测装置图像,其允许使用高分辨率和高效率的近场光进行快速测量,但不需要光纤探针的位置对准。 光学检测装置包括光纤探针,其具有用于传播光的芯,光纤探针形成在芯的前端; 移动控制单元,用于移动光纤探针以接近或离开样本; 以及检测单元,用于检测来自所述样品表面的光,其中在所述光学探针的所述芯的前端表面上,在用于发射传播光的外围侧上具有第一出射部分,以及用于渗出所述近端的第二出射部分 第一出口部和第二出口部以同心方式形成,第一出口部的倾斜角度与第二出口部的倾斜角度不同。
    • 6. 发明授权
    • Laser pumped atomic frequency standard with high frequency stability
    • 具有高频稳定性的激光泵浦原子频率标准
    • US5148437A
    • 1992-09-15
    • US754268
    • 1991-08-29
    • Motoichi Ohtsu
    • Motoichi Ohtsu
    • H01S1/00G04F5/14H01S1/02H01S3/139H03L7/26
    • H01S3/1392G04F5/14H03L7/26
    • A laser emits a laser beam with a predetermined frequency, serving as pumping light, to a double resonance section. A VCO oscillates a predetermined frequency signal that is the origin of a microwave. An oscillator oscillates a modulation signal and a low frequency signal to be a reference signal for a sync detection. A synthesizer generates a microwave acquired by subjecting the predetermined frequency signal to multiplication and phase modulation in accordance with the predetermined frequency signal and the modulation signal, and applies the microwave to the double resonance section. A photosensor detects a component of the laser beam modulated by the double resonance section. A PSD detects the level and phase of an output signal of the photosensor with the reference signal. A sweep signal generator generates a sweep signal for the microwave. A switch has first and second nodes to be mutually switched from one to the other, and feeds a PSD output back to the VCO when switched to the first node, and supplies the sweep signal to the VCO to permit sweeping of the frequency of the microwave when switched to the second node. An integration processor detects the amount of shift of a microwave resonance frequency according to the PSD output and feeds a laser frequency compensation signal back to the laser, in a state where the switch is set to the second node.
    • 7. 发明申请
    • COMPOUND SEMICONDUCTOR DEPOSITION METHOD AND APPARATUS
    • 化合物半导体沉积方法和装置
    • US20120058627A1
    • 2012-03-08
    • US13266337
    • 2010-04-28
    • Motoichi OhtsuTadashi KawazoeShunsuke YamazakiKoichi KajiyamaMichinobu MizumuraKeiichi Ito
    • Motoichi OhtsuTadashi KawazoeShunsuke YamazakiKoichi KajiyamaMichinobu MizumuraKeiichi Ito
    • H01L21/20B05C9/08
    • C23C16/481C23C14/548C23C16/303C23C16/52C30B25/00C30B29/403H01L21/0237H01L21/0242H01L21/0254H01L21/0262H01L33/0062
    • Provided is a compound semiconductor deposition method of adjusting the luminous wavelength of a compound semiconductor of a ternary or higher system in a nanometer order in depositing the compound semiconductor on a substrate. In the compound semiconductor deposition method of depositing a compound semiconductor of a ternary or higher system on a substrate, propagation light of a smaller energy than a desired ideal excitation energy for the compound semiconductor is irradiated onto the substrate 13 while depositing the compound semiconductor on the substrate 13, near-field light is generated based on the irradiated propagation light from fine particles of the compound semiconductor deposited on the substrate 13, new vibrational levels for the compound semiconductor are formed in multiple stages based on the generated near-field light, and a component in the compound semiconductor corresponding to the excitation energy is excited with the propagation light through a vibrational level, among the new vibrational levels, which has an excitation energy equal to or smaller than the energy of the propagation light is excited to desorb the component.
    • 提供一种在将化合物半导体沉积在基板上时以纳米级调节三元或更高系统的化合物半导体的发光波长的化合物半导体沉积方法。 在将三元或更高系统的化合物半导体沉积在衬底上的化合物半导体沉积方法中,将化合物半导体所需的理想激发能的能量较小的传播光照射到衬底13上,同时将化合物半导体沉积在 基板13,基于沉积在基板13上的化合物半导体的微粒的照射的传播光产生近场光,基于产生的近场光,以多个阶段形成化合物半导体的新的振动电平,以及 对应于激发能的化合物半导体中的成分被传播光激发,通过振动水平,激发能量等于或小于传播光的能量的新的振动水平被激发,从而解吸部件 。
    • 8. 发明授权
    • Wavelength-converted light generating apparatus and generating method
    • 波长转换发光装置及其生成方法
    • US07764421B2
    • 2010-07-27
    • US12410871
    • 2009-03-25
    • Hiroyasu FujiwaraMotoichi OhtsuTadashi Kawazoe
    • Hiroyasu FujiwaraMotoichi OhtsuTadashi Kawazoe
    • G02F1/35
    • G02F1/3501G02F1/355G02F1/37
    • A wavelength-converted light generating apparatus 1A includes: an excitation light source 10 supplying excitation light L0 of a predetermined wavelength; and a wavelength conversion element 20, in which an aggregate 22 of crystals of a dye molecule is held by a holding substrate 21 and which, by incidence of the excitation light L0, generates converted light L1 that has been wavelength-converted. The excitation light source 10 supplies the excitation light L0 of a wavelength longer than an absorption edge of the dye molecule to the wavelength conversion element 20. The wavelength conversion element 20, by incidence of the excitation light L0 on the crystal aggregate 22, generates and outputs the converted light (for example, visible light) L1 that has been wavelength-converted to a shorter wavelength than the excitation light (for example, near-infrared light) L0. A wavelength-converted light generating apparatus and generating method capable of favorably generating light of a shorter wavelength than incident light of a predetermined wavelength by wavelength conversion is thus realized.
    • 波长转换光产生装置1A包括:提供预定波长的激发光L0的激发光源10; 以及波长转换元件20,其中染料分子的晶体的聚集体22由保持基板21保持,并且通过激发光L0的入射产生已被波长转换的转换光L1。 激发光源10将比染料分子的吸收端长的波长的激发光L0提供给波长转换元件20.波长转换元件20通过在晶体聚集体22上的激发光L0的入射产生 将已被波长转换的转换光(例如可见光)L1输出到比激发光(例如近红外光)L0更短的波长。 因此实现了通过波长转换有利地产生比预定波长的入射光更短波长的光的波长转换光产生装置和产生方法。
    • 9. 发明申请
    • WAVELENGTH-CONVERTED LIGHT GENERATING APPARATUS AND GENERATING METHOD
    • 波长转换光产生装置和发生方法
    • US20090257114A1
    • 2009-10-15
    • US12410871
    • 2009-03-25
    • Hiroyasu FujiwaraMotoichi OhtsuTadashi Kawazoe
    • Hiroyasu FujiwaraMotoichi OhtsuTadashi Kawazoe
    • G02F1/35
    • G02F1/3501G02F1/355G02F1/37
    • A wavelength-converted light generating apparatus 1A includes: an excitation light source 10 supplying excitation light L0 of a predetermined wavelength; and a wavelength conversion element 20, in which an aggregate 22 of crystals of a dye molecule is held by a holding substrate 21 and which, by incidence of the excitation light L0, generates converted light L1 that has been wavelength-converted. The excitation light source 10 supplies the excitation light L0 of a wavelength longer than an absorption edge of the dye molecule to the wavelength conversion element 20. The wavelength conversion element 20, by incidence of the excitation light L0 on the crystal aggregate 22, generates and outputs the converted light (for example, visible light) L1 that has been wavelength-converted to a shorter wavelength than the excitation light (for example, near-infrared light) L0. A wavelength-converted light generating apparatus and generating method capable of favorably generating light of a shorter wavelength than incident light of a predetermined wavelength by wavelength conversion is thus realized.
    • 波长转换光产生装置1A包括:提供预定波长的激发光L0的激发光源10; 以及波长转换元件20,其中染料分子的晶体的聚集体22由保持基板21保持,并且通过激发光L0的入射产生已被波长转换的转换光L1。 激发光源10将比染料分子的吸收端长的波长的激发光L0提供给波长转换元件20.波长转换元件20通过在晶体聚集体22上的激发光L0的入射产生 将已被波长转换的转换光(例如可见光)L1输出到比激发光(例如近红外光)L0更短的波长。 因此实现了通过波长转换有利地产生比预定波长的入射光更短波长的光的波长转换光产生装置和产生方法。