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公开(公告)号：US20210088871A1
公开(公告)日：2021-03-25
申请号：US16700810
申请日：2019-12-02
Inventor： Qibing Sun , Leiran Wang , Wenfu Zhang , Aihu Zheng , Chao Zeng , Wei Zhao
Abstract: A device for high-speed real-time sampling of mid-infrared ultrafast light signals includes a time domain amplification unit and a detection unit. The time domain amplification unit is used to perform sampling and time domain amplification on signal light incident to the time domain amplification unit, and convert the signal light of a mid-infrared band into a near-infrared/visible band. The detection unit is used to receive and record information of the to-be-detected signal light processed by the time domain amplification unit to realize high-speed real-time sampling and measurement of the mid-infrared ultrafast light signal. The present disclosure can accurately obtain subpicosecond transient characteristics of the light signal, breaks through the capacity limit to the response rate of a traditional photoelectric detector, the bandwidth of the oscilloscope and the like, and is applicable to femtosecond-level mid-infrared ultrafast light signals.
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2.发明申请Full-Color Three-Dimensionnal Optical Sectioning Microscopic Imaging System and Method Based on Structured Illumination 审中-公开全彩三维光学切片显微成像系统及其结构化照明方法公开(公告)号：US20170052356A1
公开(公告)日：2017-02-23
申请号：US15306950
申请日：2015-11-24
Inventor： Ming LEI , Baoli YAO , Jia QIAN , Dan DAN , Xing ZHOU , Yanlong YANG , Shaohui YAN , Junwei MIN
CPC classification number: G02B21/0064 , G02B21/0032 , G02B21/0084 , G02B21/36 , G02B21/367 , G02B26/0833 , G02B27/141 , H04N5/2256 , H04N5/372 , H04N9/077 , H04N13/257
Abstract: The present invention provides a full-color three-dimensional optical sectioning microscopic imaging system and method based on structured illumination, includes an illumination source, a dichroic prism positioned at the illumination optical path, a structured light generator positioned at the reflected optical path of the dichroic prism, a lens positioned at the transmitted optical path of the dichroic prism, a beam splitter positioned at the optical path of the lens, an objective lens and a sample stage positioned at the upper optical path of the beam splitter, a reflector mirror and a tube lens positioned at the lower optical path of the beam splitter and a CCD camera positioned behind the tube lens. The illumination source is an incoherent monochrome LED or a white light LED The structured light generator is a DMD (Digital Micro-mirror Device).
Abstract translation: 本发明提供了一种基于结构照明的全色三维光学切片显微成像系统和方法，包括：照明源，位于照明光路的二向色棱镜，位于该照明光路的反射光路处的结构光发生器 分色棱镜，位于分色棱镜的透射光路处的透镜，位于透镜的光路上的分束器，物镜和位于分束器的上光路处的样品台，反射镜和 位于分束器的下光路处的管透镜和位于管透镜后面的CCD照相机。 照明源是非相干单色LED或白光LED。结构光发生器是DMD（数字微镜装置）。
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公开(公告)号：US20220181834A1
公开(公告)日：2022-06-09
申请号：US17643057
申请日：2021-12-07
Inventor： Huabao Cao , Yuxi Fu , Hushan Wang , Pei Huang , Xin Liu , Hao Yuan
Abstract: The disclosure provides a dispersion management method and apparatus based on non-periodic spectral phase jumps. Precise dispersion is provided by virtue of non-periodic spectral phase jumps, the dispersion can be tuned freely with engineering of the phase jump. A device based on non-periodic spectral phase jump also has a wide working bandwidth and could promote the development of ultrafast optics. The method includes: spatially separating a light pulse with different frequency components, and meanwhile, making the light pulse with the different frequency components propagate in parallel; enabling the light pulse with the different frequency components and propagating in parallel to be incident on a non-periodic phase jump device to obtain non-periodic spectral phase jumps, forming a phase grating effect to obtain two ±1-order diffracted pulses having opposite group delays, and introducing frequency dependent relative delay for the different spectral components in the two diffracted pulses.
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公开(公告)号：US20210141283A1
公开(公告)日：2021-05-13
申请号：US16891440
申请日：2020-06-03
Inventor： Leiran Wang , Qibing Sun , Wenfu Zhang , Chao Zeng , Weichen Fan , Wei Zhao
Abstract: A system for generating a mid-infrared optical frequency comb based on a lithium niobate microcavity includes pumping units, a beam combining unit, a nonlinear frequency conversion unit and a filtering unit. The pumping units are divided into two paths and are configured to provide two paths of pumping light. The beam combining unit is configured to perform beam combination on the two paths of pumping light The nonlinear frequency conversion unit is configured to receive the beam-combined pumping light and undergo a nonlinear four-wave mixing process to generate a broadband optical frequency comb at a mid-infrared waveband. The filtering unit is configured to filter the remaining pumping light and output a mid-infrared optical frequency comb.
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公开(公告)号：US20250096911A1
公开(公告)日：2025-03-20
申请号：US18883324
申请日：2024-09-12
Inventor： Hu Wang , Shangmin Lin , Yaoke Xue , Zhen Wang , Meiying Liu , Canglong Zhou , Qinfang Chen , Jie Liu , Yang Liu , Yongjie Xie , Hongman He , Yue Pan , Yang Shen
Abstract: An antenna attitude fast measurement system and a method are provided. The measurement system includes a data processing unit, a stereo calibration unit, at least two detector measurement units, and a plurality of target marker units; the target marker unit is arranged on the back of the antenna main reflector of the antenna system to be measured; the detector measurement unit is arranged outside the circumference of the antenna system to be measured; and the stereo calibration unit is arranged directly below the center of the antenna main reflector of the antenna system to be measured. Any two adjacent detector measurement units have a field-of-view intersection area, and there is at least one target marker unit within the field-of-view intersection area. The total number of target marker units in all field-of-view intersection areas is ≥3. The data processing unit is electrically connected to the detector measurement unit.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11085831B2
公开(公告)日：2021-08-10
申请号：US16576399
申请日：2019-09-19
Inventor： Qibing Sun , Chao Zeng , Leiran Wang , Wenfu Zhang , Wei Zhao
Abstract: A high-resolution real-time time-frequency domain measuring device includes a light splitting unit used to split signal light to be measured, a time lens unit used to perform time domain amplification on the signal light to be measured, a dispersion Fourier transform unit used to perform Fourier transform on the signal light to be measured, and a detection unit used to receive and detect measured data. The time lens and the dispersion Fourier transform technology are used to realize the real-time measurement of sub-picosecond transient characteristics of the ultra-short pulse to accurately obtain the time-frequency domain information of the ultra-short pulse.
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7.发明授权公开(公告)号：US09841376B2
公开(公告)日：2017-12-12
申请号：US15071988
申请日：2016-03-16
Inventor： Wenfu Zhang , Guoxi Wang , Lingxuan Zhang , Wei Zhao
IPC: G01N21/55 , G01N21/552
CPC classification number: G01N21/554 , B82Y20/00
Abstract: The invention relates to a metamaterial nano-sensing system, and in particular to a high-sensitivity metamaterial nano-sensing system with an ultra-narrow line width spectral response. The system includes an input light path, a metamaterial nano-sensing unit and an output light path which are sequentially provided along a direction of a light path, and the metamaterial nano-sensing unit includes a Bragg grating and a metallic periodic array arranged above the Bragg grating. The nano-sensing system provided by the invention has an ultra-narrow line width spectral response, so that sensitivity of a nanosensor is effectively improved, and broad application prospect in the fields of portable biosensing, drug development and detection, environment monitoring and the like is ensured.
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公开(公告)号：US11281070B2
公开(公告)日：2022-03-22
申请号：US16700810
申请日：2019-12-02
Inventor： Qibing Sun , Leiran Wang , Wenfu Zhang , Aihu Zheng , Chao Zeng , Wei Zhao
Abstract: A device for high-speed real-time sampling of mid-infrared ultrafast light signals includes a time domain amplification unit and a detection unit. The time domain amplification unit is used to perform sampling and time domain amplification on signal light incident to the time domain amplification unit, and convert the signal light of a mid-infrared band into a near-infrared/visible band. The detection unit is used to receive and record information of the to-be-detected signal light processed by the time domain amplification unit to realize high-speed real-time sampling and measurement of the mid-infrared ultrafast light signal. The present disclosure can accurately obtain subpicosecond transient characteristics of the light signal, breaks through the capacity limit to the response rate of a traditional photoelectric detector, the bandwidth of the oscilloscope and the like, and is applicable to femtosecond-level mid-infrared ultrafast light signals.
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公开(公告)号：US11705685B2
公开(公告)日：2023-07-18
申请号：US17643057
申请日：2021-12-07
Inventor： Huabao Cao , Yuxi Fu , Hushan Wang , Pei Huang , Xin Liu , Hao Yuan
CPC classification number: H01S3/0057 , G02B26/06 , G02F1/0102 , H01S3/10053
Abstract: The disclosure provides a dispersion management method and apparatus based on non-periodic spectral phase jumps. Precise dispersion is provided by virtue of non-periodic spectral phase jumps, the dispersion can be tuned freely with engineering of the phase jump. A device based on non-periodic spectral phase jump also has a wide working bandwidth and could promote the development of ultrafast optics. The method includes: spatially separating a light pulse with different frequency components, and meanwhile, making the light pulse with the different frequency components propagate in parallel; enabling the light pulse with the different frequency components and propagating in parallel to be incident on a non-periodic phase jump device to obtain non-periodic spectral phase jumps, forming a phase grating effect to obtain two ±1-order diffracted pulses having opposite group delays, and introducing frequency dependent relative delay for the different spectral components in the two diffracted pulses.
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10.发明申请公开(公告)号：US20200378835A1
公开(公告)日：2020-12-03
申请号：US16576399
申请日：2019-09-19
Inventor： Qibing SUN , Chao ZENG , Leiran WANG , Wenfu ZHANG , Wei ZHAO
Abstract: The present disclosure belongs to the field of optical measurement, and relates to a high-resolution real-time time-frequency domain measuring device and method for an ultra-short pulse. The technical problem of how to realize high-resolution real-time measurement of time-frequency domain information of the ultra-short pulse and improve the accuracy and reliability of a measurement result is solved. The measuring device includes a light splitting unit used to split signal light to be measured, a time lens unit used to perform time domain amplification on the signal light to be measured, a dispersion Fourier transform unit used to perform Fourier transform on the signal light to be measured, and a detection unit used to receive and detect measured data. The present disclosure uses the time lens and the dispersion Fourier transform technology to realize the real-time measurement of sub-picosecond transient characteristics of the ultra-short pulse to accurately obtain the time-frequency domain information of the ultra-short pulse, thereby breaking through the capacity limitation to the bandwidth of a traditional oscilloscope, the measuring speed of a spectrometer and the like, and the present disclosure is suitable for femtosecond-grade ultra-short pulses.
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