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公开(公告)号：US11215555B2
公开(公告)日：2022-01-04
申请号：US16727093
申请日：2019-12-26
申请人： Shenzhen Institute of Terahertz Technology and Innovation Co., Ltd. , Shenzhen Institute of Terahertz Technology and Innovation
发明人： Cui Guo , Yi Pan , Zhanqiang Xue
IPC分类号： G01N21/3586 , G01N21/39
摘要： A terahertz spectrum test device and system includes a femtosecond fiber laser configured to generate a pump light and a probe light. The pump light excites a terahertz transmitter to generate terahertz waves which are transmitted to a sample suspension device to irradiate a suspended to-be-tested sample, and the probe light is directly transmitted to a terahertz detector. The terahertz detector receives the terahertz waves transmitted from the sample suspension device, and then transmits the terahertz waves and the probe light together to a signal processing circuit to obtain a corresponding terahertz time-domain spectrum. By adoption of the terahertz spectrum test device and system, the to-be-tested sample need not be fixed with a clamp or other instruments, so that terahertz waves will not irradiate to the instrument used for fixing the to-be-tested sample during a terahertz spectrum test, which may otherwise affect the test result.
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公开(公告)号：US11156710B2
公开(公告)日：2021-10-26
申请号：US16323206
申请日：2016-08-09
申请人： CHINA COMMUNICATION TECHNOLOGY CO., LTD. , SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION CO., LTD.
发明人： Juncheng Liu , Chao Sun , Chunchao Qi
摘要： A millimeter wave imaging apparatus, including: a crystal oscillator, a power divider, a millimeter wave transceiver, a local-oscillation signal processor, a second frequency mixer and an image processor; the power divider performs power distribution on an oscillation signal generated by the crystal oscillator, and outputs a clock trigger signal and a local-oscillation signal; the local-oscillation signal processor processes the local-oscillation signal and outputs a second local-oscillation signal; the millimeter wave transceiver unit processes an echo signal reflected by an object to be detected, and outputs a first intermediate-frequency signal; the second frequency mixer mixes the second local-oscillation signal and the first intermediate-frequency signal, and outputs a second intermediate-frequency signal; the image processor processes the second intermediate-frequency signal, and images the object to be detected. As the crystal oscillator is used as both a clock trigger source and a local-oscillation signal source, the apparatus does not need additional local-oscillation signal sources.
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公开(公告)号：US20190227190A1
公开(公告)日：2019-07-25
申请号：US16315582
申请日：2017-07-06
申请人： CHINA COMMUNICATION TECHNOLOGY CO., LTD , SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION CO., LTD.
发明人： Chunchao QI , Chao Sun , Shukai Zhao , Guangsheng WU , Qing DING
摘要： A millimeter wave security inspection instrument debugging system and a millimeter wave security inspection instrument debugging method, which are used for debugging the imaging definition of a millimeter wave holographic imaging security inspection system. A main control apparatus is used for generating a millimeter wave detection signal and a reference signal. The main control apparatus is also used for, where a millimeter wave transmitting antenna, a millimeter wave receiving antenna and a detected object are respectively located at different relative positions, transmitting the millimeter wave detection signal to the detected object by means of the millimeter wave transmitting antenna, and receiving an echo signal reflected from the detected object by means of the millimeter wave receiving antenna, and then using a holographic image technique to perform three-dimensional imaging according to the reference signal and the echo signal. The main control apparatus can finally obtain a plurality of three-dimensional imaging results, so that the optimal relative positions of the millimeter wave transmitting antenna, the millimeter wave receiving antenna and the detected object can be determined, which results are applied to a millimeter wave holographic imaging security inspection system, thereby improving the imaging definition of the millimeter wave holographic imaging security inspection system.
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公开(公告)号：US11385380B2
公开(公告)日：2022-07-12
申请号：US16315582
申请日：2017-07-06
申请人： CHINA COMMUNICATION TECHNOLOGY CO., LTD , SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION CO., LTD
发明人： Chunchao Qi , Chao Sun , Shukai Zhao , Guangsheng Wu , Qing Ding
摘要： A millimeter wave security inspection instrument debugging system and a millimeter wave security inspection instrument debugging method, which are used for debugging the imaging definition of a millimeter wave holographic imaging security inspection system. A main control apparatus is used for generating a millimeter wave detection signal and a reference signal. The main control apparatus is also used for, where a millimeter wave transmitting antenna, a millimeter wave receiving antenna and a detected object are respectively located at different relative positions, transmitting the millimeter wave detection signal to the detected object by means of the millimeter wave transmitting antenna, and receiving an echo signal reflected from the detected object by means of the millimeter wave receiving antenna, and then using a holographic image technique to perform three-dimensional imaging according to the reference signal and the echo signal. The main control apparatus can finally obtain a plurality of three-dimensional imaging results, so that the optimal relative positions of the millimeter wave transmitting antenna, the millimeter wave receiving antenna and the detected object can be determined, which results are applied to a millimeter wave holographic imaging security inspection system, thereby improving the imaging definition of the millimeter wave holographic imaging security inspection system.
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公开(公告)号：US11199495B2
公开(公告)日：2021-12-14
申请号：US15749979
申请日：2016-12-15
申请人： Shenzhen Institute of Terahertz Technology and Innovation Co., Ltd. , Shenzhen Institute of Terahertz Technology and Innovation
发明人： Qing Ding , Yi Pan , Shichang Peng
IPC分类号： G01N21/3581 , G01N21/21
摘要： The invention relates to a terahertz full polarization state detection spectrometer, which comprises a terahertz wave generator, a polarizer, a polarization splitter, a horizontal terahertz detector and a vertical terahertz detector. The terahertz wave generator generates a terahertz wave and the polarizer optimizes the terahertz wave for purity. The sample to be detected modulates the terahertz wave after purity optimization to obtain the terahertz modulated wave. The terahertz modulated wave is decomposed by the polarization splitter into a horizontal terahertz wave and a vertical terahertz wave whose polarization states are perpendicular to each other. The two terahertz waves are detected by two corresponding terahertz detectors respectively. According to the detected result, the characteristic of the sample is analyzed. The terahertz full polarization state detection spectrometer can quickly and accurately detect all kinds of full polarization state terahertz waves and improve the detection accuracy and efficiency of the sample.
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公开(公告)号：US20190353776A1
公开(公告)日：2019-11-21
申请号：US16323206
申请日：2016-08-09
申请人： CHINA COMMUNICATION TECHNOLOGY CO., LTD. , SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION CO., LTD.
发明人： Juncheng LIU , Chao SUN , Chunchao QI
摘要： A millimeter wave imaging apparatus includes a crystal oscillator, a power divider, a millimeter wave transceiver unit, a local-oscillation signal processing unit, a second frequency mixer and an image processing device; the power divider performs power distribution on an oscillation signal generated by the crystal oscillator, and outputs a clock trigger signal and a local-oscillation signal; the local-oscillation signal processing device processes the local-oscillation signal and outputs a second local-oscillation signal; the millimeter wave transceiver unit processes an echo signal reflected by an object to be detected, and outputs a first intermediate-frequency signal; the second frequency mixer mixes the second local-oscillation signal and the first intermediate-frequency signal, and outputs a second intermediate-frequency signal; the image processing module processes the second intermediate-frequency signal, and images the object to be detected.
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公开(公告)号：US10965358B2
公开(公告)日：2021-03-30
申请号：US16660109
申请日：2019-10-22
申请人： Shenzhen Institute of Terahertz Technology and Innovation , Shenzhen Institute of Terahertz Technology and Innovation Co., Ltd.
发明人： Qing Ding , Chong Han , Chen Li , Shitao Yan
IPC分类号： H04B7/06
摘要： A dynamic signal transmission structure based on a hybrid beamforming technology includes a radio-frequency module and an antenna array connected therewith. The radio-frequency module includes one or more radio-frequency link units connected in parallel, the antenna array includes one or more antenna sub-arrays, and each antenna sub-array is connected with one of the radio-frequency modules. The hybrid beamforming technology includes analog and digital beamforming. In this structure, the analog beamforming parameters and the digital beamforming parameters are constant, and the number of radio-frequency link units in the radio-frequency module, the number of antenna sub-arrays in the antenna array, the analog beamforming parameters, and the digital beamforming parameters are in a quantitative relation. The structure of the antenna array and the number of radio-frequency link units in each radio-frequency module can be adjusted dynamically under the condition where the performance is guaranteed, and accordingly, the hardware complexity is reduced.
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公开(公告)号：US10408679B2
公开(公告)日：2019-09-10
申请号：US15561005
申请日：2016-08-04
申请人： SHENZHEN TERAHERTZ SYSTEM EQUIPMENT CO., LTD. , SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION CO., LTD.
发明人： Shichang Peng , Yi Pan , Chen Li , Qing Ding
IPC分类号： G01J5/02 , G01J3/433 , G01N21/3581 , G01N21/49 , G01N21/3563 , G01N21/3577 , G01J3/42 , G01J3/28 , G01N21/3586 , G01J3/02
摘要： The present application relates to a terahertz time-domain spectroscopy system. In this terahertz time-domain spectroscopy system, the femtosecond laser light radiated by the femtosecond laser is collimated by a first diaphragm, and then is split by a beam splitter into a pump light and a probe light. The pump light passes through the first light path module to generate a terahertz pulse, and the probe light passes through the first light path module to generate a linear polarization probe light having the same optical distance as that of the pump light. The linear polarization probe light and the terahertz pulse are combined by a beam combiner to obtain a light beam to be detected carrying the terahertz pulse information. Two electro-optical crystals with the same thickness are used in a detection device simultaneously. Changing the crystal axis angle of the two electro-optical crystals, there is a phase compensation to the two components o light and e light of the probe light, so as to realize linear detection to high power terahertz pulse and improve measurement accuracy.
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公开(公告)号：US20180306644A1
公开(公告)日：2018-10-25
申请号：US15561005
申请日：2016-08-04
申请人： SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION CO., LTD. , SHENZHEN TERAHERTZ SYSTEM EQUIPMENT CO., LTD.
发明人： Shichang PENG , Yi PAN , Chen LI , Qing DING
IPC分类号： G01J3/433 , G01N21/3586 , G01J3/28
CPC分类号： G01J3/4338 , G01J3/0205 , G01J3/0224 , G01J3/2803 , G01J3/42 , G01J2003/2806 , G01J2003/421 , G01J2003/423 , G01J2003/425 , G01N21/3563 , G01N21/3577 , G01N21/3581 , G01N21/3586 , G01N21/49 , G01N2201/06113
摘要： The present application relates to a terahertz time-domain spectroscopy system. In this terahertz time-domain spectroscopy system, the femtosecond laser light radiated by the femtosecond laser is collimated by a first diaphragm, and then is split by a beam splitter into a pump light and a probe light. The pump light passes through the first light path module to generate a terahertz pulse, and the probe light passes through the first light path module to generate a linear polarization probe light having the same optical distance as that of the pump light. The linear polarization probe light and the terahertz pulse are combined by a beam combiner to obtain a light beam to be detected carrying the terahertz pulse information. Two electro-optical crystals with the same thickness are used in a detection device simultaneously. Changing the crystal axis angle of the two electro-optical crystals, there is a phase compensation to the two components o light and e light of the probe light, so as to realize linear detection to high power terahertz pulse and improve measurement accuracy.
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公开(公告)号：US11125684B2
公开(公告)日：2021-09-21
申请号：US16629524
申请日：2017-09-04
申请人： SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION , SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION CO., LTD.
发明人： Yi Pan , Qing Ding , Rongyue Liu , Chen Li
IPC分类号： G01N21/3577 , G01N21/3581 , G01N21/552 , G01N33/53
摘要： A plasmonic waveguide (10), a biosensor chip (100) and a system, wherein the plasmonic waveguide (10) is applied to the biosensor chip (100), and comprises a base (11) and a plasmonic structure (12) provided on the upper surface of the base (11); the plasmonic structure (12) comprises a plurality of plasmons (121) periodically arranged, the plasmons (121) being metal split rings, and the annular openings of the plasmons (121) being used for fixing antibody probes (122). The plasmon waveguide (10) is provided in the biosensor chip (100), the target biomolecules in the detection liquid flowing into a microfluidic channel (31) can be captured by means of the antibody probes (122), and the plasmonic waveguide (10) is used to enhance the signal strength of terahertz waves emitted to the biosensor chip (100), thereby enhancing the signal strength of the reflected terahertz waves detected by a terahertz analyzer (300), improving the detection sensitivity, the signal-to-noise ratio and the reliability.
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