公开(公告)号：US12037256B2

公开(公告)日：2024-07-16

申请号：US18507950

申请日：2023-11-13

申请人： SHANXI UNIVERSITY

发明人： Huaigang Cheng ,  Fangqin Cheng ,  Yanjie Huang ,  Hongzhou Lv

IPC分类号： C01F5/40

CPC分类号： C01F5/40 ,  C01P2004/12 ,  C01P2004/61

摘要： A device for creating hollow tubes of crystalline magnesium sulphate sized a micron pertains to the production technology for inorganic micron-scale materials. The device consist of two halogenation tanks, a solar collector, a temperature-controlled crystallization chamber, a centrifuge, a conveyor belt, and a dryer. The solar collector is connected to a heat pipe at the bottom of a brine pool to form a circulation path. Said method is to convert high magnesium brine into saturated brine with a Mg2+:Na+ mass ratio between (8˜15):1 by a brine blending operation at a temperature of 60° C.˜90° C. it is controlled to be cooled and crystallized at a cooling rate of 0.6˜2.0° C./min, solid-liquid centrifugal separation is carried out when it is cooled down to 40˜48.5° C., and the solid phase is dried at a temperature of 48.5˜70° C., and finally micron-sized crystalline magnesium sulfate hollow tubes are obtained.

公开(公告)号：US20210167566A1

公开(公告)日：2021-06-03

申请号：US17061051

申请日：2020-10-01

申请人： Shanxi University

发明人： Jing SU ,  Huiqi YANG ,  Huadong LU ,  Kunchi PENG

IPC分类号： H01S3/06 ,  H01S3/095 ,  H01S3/08 ,  H01S3/16

摘要： A device and a method for measuring thermal load caused by excited state absorption in laser gain crystal are disclosed. Thermal focal lengths on the tangential and sagittal planes of the laser gain crystal are obtained by obtaining the threshold when the pump power is decreased, the optimal operating point, and cavity parameters of the single-frequency laser. Individual ABCD matrices of the laser gain crystal on the tangential plane and the sagittal plane are obtained based on thermal focal length. The thermal load corresponding to the threshold when the pump power is decreased, the ESA thermal load corresponding to the threshold when the pump power is decreased, and the ESA thermal load at the optimal operating point are obtained

公开(公告)号：US20170331560A1

公开(公告)日：2017-11-16

申请号：US15385452

申请日：2016-12-20

申请人： Shanxi University

发明人： Jianyong Hu ,  Jie MA ,  Linjie ZHANG ,  Liantuan XIAO ,  Suotang JIA

IPC分类号： H04B10/70 ,  H04B10/556 ,  H04B10/532 ,  H04B10/516

CPC分类号： H04B10/70 ,  H04B10/5161 ,  H04B10/532 ,  H04B10/5561 ,  H04B10/5563 ,  H04L9/0852

摘要： A single photons communication method and system is provided. In an example, an information loading module in a transmitting terminal of the single photons communication system may code to-be-sent target information as a corresponding target modulation frequency according to a pre-saved relationship between information and modulation frequency, and perform frequency modulation on a quantum state of communication light generated by a light source by using the target modulation frequency so that the transmitting terminal may send out modulated target communication light. After receiving the target communication light, an information decoding module in a receiving terminal of the single photons communication system may decode the target modulation frequency from a sequence of receiving photons of the target communication light through Fourier transform or other ways, and obtain target information corresponding to the target modulation frequency according to the relationship between information and modulation frequency.

公开(公告)号：US20240166528A1

公开(公告)日：2024-05-23

申请号：US18507950

申请日：2023-11-13

申请人： SHANXI UNIVERSITY

发明人： Huaigang CHENG ,  Fangqin CHENG ,  Yanjie HUANG ,  Hongzhou LV

IPC分类号： C01F5/40

CPC分类号： C01F5/40 ,  C01P2004/12 ,  C01P2004/61

摘要： A device for creating hollow tubes of crystalline magnesium sulphate sized a micron pertains to the production technology for inorganic micron-scale materials. The device consist of two halogenation tanks, a solar collector, a temperature-controlled crystallization chamber, a centrifuge, a conveyor belt, and a dryer. The solar collector is connected to a heat pipe at the bottom of a brine pool to form a circulation path. Said method is to convert high magnesium brine into saturated brine with a Mg2+:Na+ mass ratio between (8˜15):1 by a brine blending operation at a temperature of 60° C.˜90° C. it is controlled to be cooled and crystallized at a cooling rate of 0.6˜2.0° C./min, solid-liquid centrifugal separation is carried out when it is cooled down to 40˜48.5° C., and the solid phase is dried at a temperature of 48.5˜70° C., and finally micron-sized crystalline magnesium sulfate hollow tubes are obtained.

公开(公告)号：US20240077457A1

公开(公告)日：2024-03-07

申请号：US18115356

申请日：2023-02-28

申请人： SHANXI UNIVERSITY

发明人： Kuanshou ZHANG ,  Zheng Song ,  Yuanji Li ,  Jinxia Feng

IPC分类号： G01N29/24 ,  G01J3/453 ,  G01N29/30

CPC分类号： G01N29/2418 ,  G01J3/4535 ,  G01N29/30 ,  A61B5/0095

摘要： The present disclosure belongs to the field of photoacoustic signal detection, and specifically relates to a quantum-enhanced all-optical photoacoustic signal detection device and method. The problem of low sensitivity of photoacoustic signals based on interference measurement is solved, and high-sensitivity detection of photoacoustic signals generated by living organisms including human bodies can be achieved. A degenerate optical parametric oscillator based on a first-type phase matching crystals is used for preparing a vacuum squeezed state light field, a coherent control technology is used for locking the squeezed angle to obtain the quadrature phase vacuum squeezed state, the prepared quadrature phase vacuum squeezed state light field is injected into the vacuum channel of a Michelson interferometer, and a balanced homodyne detection mode is used for achieving detection of the quantum-enhanced photoacoustic signals.

公开(公告)号：US11815763B1

公开(公告)日：2023-11-14

申请号：US18121644

申请日：2023-03-15

申请人： SHANXI UNIVERSITY

发明人： Zhaomin Tong

IPC分类号： G02F1/1335 ,  G02F1/1343 ,  G02F1/1337 ,  G02F1/13357

CPC分类号： G02F1/133607 ,  G02F1/13439 ,  G02F1/133605 ,  G02F1/133723

摘要： A liquid crystal coherent transparent display screen and a liquid crystal-laser transparent display system are provided. The liquid crystal coherent transparent display screen includes a first substrate, a second substrate, a first electrode layer, a first partial reflector, a first alignment layer, a second electrode layer, a second partial reflector, a second alignment layer, and a liquid crystal layer. The first partial reflector and the second partial reflector form an optical resonant microcavity, to replace the polarizer, the analyzer and the optical filters in conventional technology, thereby improving the light transmittance of liquid crystal transparent display.

公开(公告)号：US11578966B2

公开(公告)日：2023-02-14

申请号：US17465428

申请日：2021-09-02

申请人： Shanxi University

发明人： Jizhou Wu ,  Jie Ma ,  Suya Song ,  Liantuan Xiao ,  Suotang Jia

IPC分类号： G01B11/06

摘要： The present disclosure relates to a test paper counting technology, in particular to a portable test paper counting device and method based on a single photon detector. A portable test paper counting device based on a single photon detector is provided, which includes a box-shaped housing, two guide rail pairs, two hanger rods, a laser, a reflecting mirror, a single photon detector, a power supply, and a PC computer. A rectangular operating hole penetrating from left to right is formed in a lower edge of a right side wall of the box-shaped housing. A right part of a bottom wall of the box-shaped housing is provided with an assembly hole penetrating from up to down. A left side wall of the box-shaped housing is provided with a threading hole penetrating from left to right. Sliders of the two guide rail pairs both face downwards.

公开(公告)号：US20210364559A1

公开(公告)日：2021-11-25

申请号：US17128206

申请日：2020-12-21

申请人： SHANXI UNIVERSITY

发明人： Jianyong HU ,  Ruiyun Chen ,  Chengbing Qin ,  Guofeng Zhang ,  Jie MA ,  Liantuan XIAO ,  Suotang JIA

IPC分类号： G01R23/02 ,  G01R23/16

摘要： A frequency measurement method and a system thereof are provided. The method includes: generating to-be-detected emergent light under an action of the electro-optical crystal when a light source irradiates an electro-optical crystal disposed in the microwave electric field; detecting, by a single-photon detector, the to-be-detected emergent light to obtain a detection result of the single-photon detector; and determining a frequency of the microwave signal based on the detection result of the single-photon detector and a Fourier transform algorithm.

公开(公告)号：US20200232906A1

公开(公告)日：2020-07-23

申请号：US16080711

申请日：2018-03-05

申请人： SHANXI UNIVERSITY

发明人： Lei DONG ,  Hongpeng WU ,  Frank K. TITTEL ,  Liantuan XIAO ,  Suotang JIA

IPC分类号： G01N21/17

摘要： The disclosure relates to a quartz-enhanced photoacoustic spectroscopy gas detection apparatus and method based on beat effect. Provided is a quartz-enhanced photoacoustic spectroscopy gas detection apparatus based on beat effect, comprising a photoacoustic signal detection module, a gas chamber, a light source module and a data acquisition module. In the present invention, by detecting the beat signal generated by mixing the piezoelectric signal output from the quartz tuning fork with the demodulation signal of the lock-in amplifier, the electrical parameters of the quartz crystal oscillator and the concentration of the gas to be measured can be obtained accurately in a time period on the order of milliseconds.

公开(公告)号：US10326250B2

公开(公告)日：2019-06-18

申请号：US16015868

申请日：2018-06-22

申请人： Shanxi University

发明人： Huadong Lu ,  Pixian Jin ,  Jing Su ,  Kunchi Peng

IPC分类号： H01S3/105 ,  H01S3/109 ,  H01S3/107 ,  H01S3/083 ,  H01S3/16

摘要： A method for expanding a tuning range of an all-solid-state continuous-wave single-frequency laser is provided. The method includes inserting a nonlinear frequency-doubling crystal into a laser resonant cavity, and converting a part of intra-cavity fundamental-frequency light to frequency-doubled light by the nonlinear frequency-doubling crystal, outputting the generated frequency-doubled light and the fundamental-frequency light together from the laser resonant cavity, and separating the two via a spectroscope. The method also includes splitting a part of the fundamental-frequency light reflected by the spectroscope through an optical beam-splitter, and outputting the remaining part of the fundamental-frequency light as a main laser. A cavity length of the laser resonant cavity is changed by adjusting a voltage loaded on a piezoelectric ceramic of the all-solid-state continuous-wave single-frequency laser, thereby achieving continuous frequency-tuning of the all-solid-state continuous-wave single-frequency laser.