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公开(公告)号：US5082340A
公开(公告)日：1992-01-21
申请号：US515848
申请日：1990-04-27
CPC分类号： H01S3/063 , G02F1/3534 , G02F1/377 , G02F2001/374
摘要： In a wavelength converting device including a light waveguide made of nonlinear optical material and outputting Cherenkov light, a reflecting mirror for reflecting guided light is provided at the end of the light waveguide. The light waveguide may include a light introducing portion and a curved light waveguide smoothly coupled with the light introducing portion. The light waveguide may have a Y-shaped structure including two light introducing portions partially parallel to each other, a junction part at which the two light introducing portions are smoothly joined together, and a linear light generating portion coupled with the junction part.
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12.发明授权
公开(公告)号：US5043568A
公开(公告)日：1991-08-27
申请号：US506782
申请日：1990-04-10
CPC分类号： G01J1/42 , H04N5/228 , H04N5/30 , G01J2011/005
摘要： A first part of input light containing both background light and signal light is extracted by a sampling streak tube and converted to a first electric signal by a photodetector. A second part of the input light containing only background light is extracted by the same sampling streak tube by offsetting the sampling timing and converted to a second electric signal by the photodetector. A signal component corresponding to the signal light is extracted by taking the difference between the first and second electric signals. In one embodiment, the sampling timing is offset by applying a chopping voltage to chopping electrodes provided in the sampling streak tube.
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13.发明授权Voltage detector for detecting a voltage developing in a selected area of an object 失效用于检测在物体的选定区域中产生的电压的电压检测器
公开(公告)号：US4887026A
公开(公告)日：1989-12-12
申请号：US201888
申请日：1988-06-03
IPC分类号： G01R1/07 , G01R15/24 , G01R19/00 , G01R31/302 , H01L21/66
CPC分类号： G01R1/071 , G01R15/242
摘要： A voltage detector detects a voltage developing in a selected area of an object such as an integrated circuit by utilizing an electro-optic material equipped in an optical probe. A change in refractive index of the electro-optic material hwich is caused by the voltage in the object, is detected as a change of polarization of a light beam passing through the electro-optic material. In order to simplify the optical system, the electro-optic material itself has a function to change the light-traveling path. In the first aspect, a surface of light-incidence side is worked into a lens shape. In the second aspect, the electro-optic material has a graded refractive index profile as a result of ion diffusion.
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公开(公告)号：US5479106A
公开(公告)日：1995-12-26
申请号：US313805
申请日：1994-09-28
CPC分类号： G01R1/071 , G01R31/308
摘要： To provide an E-O probe which can measure a voltage distribution in a fine region while enlarging it. A grounded, transparent electrode 2 and an electrooptic member 3 such as LiTaO.sub.3 are successively fixed to and below a support 1. There are a plurality of conical, conductive members 5a-5e arranged below a reflection film 4 in such a manner that the bottom surfaces thereof are fixed to the lower surface of the reflection film 4 and that the lower ends thereof project downward. Spaces between the plural, linear, electric needles 5a-5e become narrower toward a measured object located below them, whereby voltages in a fine region in the measured object can be guided as enlarged to the electrooptic member 3.
摘要翻译： 提供一种E-O探头，可以在放大时测量精细区域的电压分布。 接地的透明电极2和诸如LiTaO 3的电光元件3依次固定在支撑体1上和下方。在反射膜4的下方设置有多个锥形的导电构件5a-5e， 被固定到反射膜4的下表面，并且其下端向下突出。 多个线性电针5a-5e之间的空间朝向位于其下方的测量对象变窄，由此可以将测量对象中的细微区域中的电压扩大地引导到电光构件3。
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公开(公告)号：US5055770A
公开(公告)日：1991-10-08
申请号：US507514
申请日：1990-04-11
CPC分类号： G01R1/071 , G01R15/242
摘要： A voltage in a selected area of an object is measured by launching an input light beam into an electrooptic material whose refractive index is changed in accordance with an electric field created by the voltage in a selected area of an object to be measured, and detecting a change in polarization or in a deflection angle of an output light beam from the electrooptic material. A medium having a dielectric constant greater than the air is placed between the area to be measured and the electrooptic material.
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公开(公告)号：US4982152A
公开(公告)日：1991-01-01
申请号：US201205
申请日：1988-06-02
IPC分类号： G01R1/07 , G01R15/24 , G01R19/00 , G01R19/155 , G01R31/302 , H01L21/66
CPC分类号： G01R1/071 , G01R15/242 , G01R19/155
摘要： A voltage detecting device using an electro-optical material with a refractive index which is changed by a voltage at a part of an object comprising a light source, comprises an electro-optical material for changing the optical path of the light beam from the light source in accordance with the refraction index of the electro-optical material and a slit or optical fiber extractor at a predetermined position at the output of the electro-optical material for extracting the quantity of light of the light beam at the predetermined position and a detector detecting a voltage at the part of the object from the quantity of light extracted.
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公开(公告)号：US4975635A
公开(公告)日：1990-12-04
申请号：US264706
申请日：1988-10-31
CPC分类号： G01R15/242 , G01R13/347 , G01R13/40
摘要： A voltage detector for measuring the voltage waveform of an object being measured on the basis of the optical intensity signal corresponding to the voltage of the object, including a light source for generating light, an optical modulator for converting the light from the light source into an optical intensity signal corresponding to the voltage of the object, and a sampling type high-speed photodetector for sampling the optical intensity signal from the optical modulator and measuring the voltage waveform of the object on the basis of the sampled optical intensity signal.
摘要翻译： 一种电压检测器，用于根据与物体的电压相对应的光强度信号来测量被测物体的电压波形，包括用于产生光的光源，用于将来自光源的光转换成光源的光调制器 对应于物体的电压的光强度信号，以及采样型高速光电检测器，用于对来自光调制器的光强度信号进行采样，并根据取样的光强度信号测量物体的电压波形。
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公开(公告)号：US4962353A
公开(公告)日：1990-10-09
申请号：US256793
申请日：1988-10-12
CPC分类号： G01R13/347 , G01R13/40 , G01R15/24 , G01R29/02
摘要： A voltage detector with an optical modulator comprising a pulse light source for outputting light pulses, a pulse train generator for generating a light pulse train having a pulse interval with the aid of light pulses provided by the pulse light source and for applying the light pulse train to an optical modulator, and a detector for detecting the optical intensities of light pulses forming the light pulse train which are modulated by the optical modulator with a voltage waveform to be detected.
摘要翻译： 一种具有光调制器的电压检测器，包括用于输出光脉冲的脉冲光源，脉冲串发生器，用于借助于由脉冲光源提供的光脉冲产生具有脉冲间隔的光脉冲串，并用于施加光脉冲 以及检测器，用于检测由光学调制器调制的形成光脉冲串的光脉冲的光强度，并具有待检测的电压波形。
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公开(公告)号：US4906922A
公开(公告)日：1990-03-06
申请号：US217790
申请日：1988-07-12
IPC分类号： G01R15/24 , G01R31/308
CPC分类号： G01R31/308 , G01R15/242
摘要： A voltage detecting device for detecting voltages in an object under test including an electro-optic material covering a plurality of parts of the object under test; the refractive index of the electro-optic material being variable according to an applied voltage. A light source emits light through the electro-optic material toward the object under test and a detecting device receives an emergent light beam reflected from within the electro-optic material in order to detect voltages in the object. Further, a scanning device automatically scans the object under test with the light beam in order to detect voltages at a plurality of locations on the object.
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公开(公告)号：US07002162B1
公开(公告)日：2006-02-21
申请号：US10344850
申请日：2000-08-18
IPC分类号： G01N21/64
CPC分类号： G01N21/6408 , G01N21/6445
摘要： A fluorescence component that passes through a region of a detection medium where a change in refractive index has been induced through a nonlinear optical effect produced in the detection medium by a gate pulse is observed as a fluorescence image by utilizing a change in polarization state. By observing the change in position of the fluorescence image while correlating with the change over time in the fluorescence, a fluorescence lifetime measuring apparatus is realized with which the change over time in the fluorescence, in particular the fluorescence lifetime, can be measured efficiently with high temporal resolution.
摘要翻译： 通过利用偏振状态的变化，通过在检测介质中通过栅极脉冲产生的非线性光学效应，通过检测介质的区域的折射率变化的荧光成分被观察为荧光图像。 通过观察荧光图像的位置变化，同时与荧光中随时间的变化相关联，实现了荧光寿命测量装置，其中荧光寿命随时间的变化，特别是荧光寿命可以高效地测量 时间分辨率。
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