公开(公告)号：US20210299658A1

公开(公告)日：2021-09-30

申请号：US17336222

申请日：2021-06-01

Applicant: Chongqing Institute of East China Normal University ,  SHANGHAI LANGYAN OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  East China Normal University

Inventor： Heping ZENG ,  Chuan YANG ,  Mengyun HU ,  Shuai YUAN

IPC: B01L3/00 ,  B23K26/06 ,  B81C1/00 ,  B23K26/03 ,  G06F30/3308

Abstract: A device and a method for direct printing of a microfluidic chip based on a large-format array femtosecond laser. The large-format array femtosecond laser with multi-parameter adjustable laser beam state is used to achieve large-format laser interference. The interference state, interference combination and exposure mode of the large-format array femtosecond laser are regulated, and multiple exposures are superimposed to output the desired pattern for the microfluidic chip, enabling the direct printing processing of the microfluidic chip.

公开(公告)号：US20210283722A1

公开(公告)日：2021-09-16

申请号：US17329251

申请日：2021-05-25

Applicant: Chongqing Institute of East China Normal University ,  SHANGHAI LANGYAN OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  East China Normal University

Inventor： Heping ZENG ,  Chuan YANG ,  Mengyun HU ,  Shuai YUAN

IPC: B23K26/55 ,  B23K26/067 ,  B23K26/70 ,  B23K26/361 ,  B01L3/00

Abstract: A method for processing a micro-channel of a micro-fluidic chip using multi-focus ultrafast laser, in which an array-type multi-focus femtosecond laser is used to perform fractional ablation on the micro-fluidic chip, and then pulse laser is used to perform secondary ablation on the micro-fluidic chip. Ultrasonic-assisted hydrofluoric acid etching is performed on the micro-fluidic chip after ablation to obtain a true three-dimensional micro-channel on the micro-fluidic chip. A device for processing a micro-channel of a micro-fluidic chip using multi-focus ultrafast laser is also provided.

公开(公告)号：US20210175678A1

公开(公告)日：2021-06-10

申请号：US17113041

申请日：2020-12-05

Applicant: Chongqing Institute of East China Normal University ,  ROI Optoelectronics Technology CO, LTD. ,  East China Normal University

Inventor： Heping ZENG ,  Xiuqi WU ,  Shuang LI ,  Xuling SHEN

IPC: H01S3/00 ,  H01S3/13

Abstract: Provided are a time and frequency control method and system for optical comb. The method includes: controlling an optical comb measuring system to start and to generate an optical comb; obtaining monitoring data, wherein the monitoring data comprises a working temperature, a mode-locked frequency and a light pump power, wherein the mode-locked frequency comprises a repetition frequency and a carrier envelope phase locked at the end of starting the optical comb measuring system; determining whether an offset of the mode-locked frequency exceeds a self-feedback adjustment range of a hardware adjustment circuit; and in response to any of the repetition frequency and the carrier envelope phase exceeds the self-feedback adjustment range, adjusting the working temperature and the light pump power until the mode-locked frequency returns back into the self-feedback adjustment range.

公开(公告)号：US20210108963A1

公开(公告)日：2021-04-15

申请号：US17013749

申请日：2020-09-07

Applicant: Chongqing Institute of East China Normal University ,  East China Normal University ,  University of Shanghai for Science and Technology

Inventor： Heping ZENG ,  Kangwen YANG ,  Xu CHEN ,  Yue SHEN ,  Shikai ZHENG

IPC: G01J3/44 ,  G01J3/28 ,  G01N21/65

Abstract: The disclosure provides a super-resolution fast-scanning coherent Raman scattering imaging method. The method: using pump light and Stokes light; combining the pump light and the Stokes light to obtain combined light; expanding/collimating the combined light; the combined light after the expanding/collimating entering a galvanometer, passing through a group of a scanning lens/a tube lens and being focused on a back focal plane of a microobjective and incidenting into a biological sample, such that the biological sample is excited to emit anti-Stokes light; collecting the excited anti-Stokes light by a detector. This method is characterized by deflecting, at different angles, a single light spot focused on the microobjective through a diffractive optics group including DOE and a dispersive element, into a plurality of 1xN light spots to incident into the biological sample, such that the anti-Stokes light excited from smaller molecules and being condensed and filtered, is collected by the detector.

公开(公告)号：US20210074585A1

公开(公告)日：2021-03-11

申请号：US16926842

申请日：2020-07-13

Applicant: Chongqing Institute of East China Normal University ,  East China Normal University ,  University of Shanghai for Science and Technology

Inventor： Heping ZENG ,  Shuai YUAN ,  Yingsheng DU ,  Hui XU ,  Yuan NIE ,  Yong WANG ,  Jin WANG ,  Jue YU ,  Yanying MA

IPC: H01L21/78 ,  H01L21/268 ,  B23K26/064 ,  B23K26/08 ,  B23K26/06 ,  B23K26/073 ,  B23K26/0622 ,  B23K26/402 ,  B23K26/53

Abstract: The present disclosure provides a stealth dicing method and apparatus. With the method, the focusing element focuses the laser beam on the surface of material to be diced, and the dynamic-equilibrium plasma channel is formed in the material to be diced by means of self-focusing and defocusing effect of plasma generated by ionizing the material to be diced. The modified layer may be formed in the material to be diced throughout the plasma channel, so as to realize stealth dicing.

公开(公告)号：US20210032165A1

公开(公告)日：2021-02-04

申请号：US16899159

申请日：2020-06-11

Applicant: Chongqing Institute of East China Normal University ,  East China Normal University

Inventor： Heping ZENG ,  Yanwei HUANG ,  Jiayang HE

IPC: C04B35/46 ,  C04B35/78

Abstract: Disclosed is a method for preparing a carbon-reinforced metal-ceramic composite material, including: mixing raw materials of carbon, copper, zinc, titanium, copper oxide, calcium oxide and titanium dioxide, ball-milling the raw materials with a medium of ethanol to obtain a mixture, drying and milling the mixture to obtain a powder, sintering the powder with a laser having an irradiation power ranging from 100 to 600 W and an irradiation period of 3 min to 10 min to obtain a product, and rapidly cooling the product to allow a temperature of the product to be decreased to the room temperature within 5 min to obtain the carbon-reinforced metal-ceramic composite material.

公开(公告)号：US20240183023A1

公开(公告)日：2024-06-06

申请号：US18516189

申请日：2023-11-21

Applicant: Chongqing Huapu Information Technology Co.,Ltd. ,  Chongqing Huapu Intelligent Equipment Co., Ltd. ,  Chongqing Huapu Quantum Technology Co.,Ltd. ,  Chongqing Huapu Scientific Instrument Co.,Ltd. ,  Yunnan Huapu quantum Material Co., Ltd ,  ROI Optoelectronics Technology CO, LTD. ,  GuangDong ROI Optoelectronics Technology Co., Ltd. ,  Chongqing Institute of East China Normal University ,  East China Normal University

Inventor： Heping ZENG ,  Mengyun HU ,  Yu QIAO

IPC: C23C14/28 ,  C03C17/22 ,  C23C14/06

CPC classification number: C23C14/28 ,  C03C17/22 ,  C23C14/0635 ,  C23C14/0652 ,  C03C2217/281 ,  C03C2217/282 ,  C03C2218/151

Abstract: The present disclosure provides a method of an ultrafast-pulsed laser deposition and a device thereof, wherein a single emitted femtosecond pulse is split, and the split pulses are synchronized in the time domain, and then coupled with each other to form a plasma grating or lattice to excite the target material once; then multiple pulsed lasers are sequentially coupled multiple times with the plasma gratings or lattices to excite the target material multiple times, and the excited target material is deposited and reacted on the substrate to form a thin film.

公开(公告)号：US20230296911A1

公开(公告)日：2023-09-21

申请号：US18182745

申请日：2023-03-13

Applicant: Chongqing Institute of East China Normal University ,  ROI Optoelectronics Technology CO, LTD. ,  Yunnan Huapu quantum Material Co., Ltd ,  GuangDong ROI Optoelectronics Technology Co., Ltd. ,  East China Normal University ,  Chongqing Huapu Intelligent Equipment Co., Ltd. ,  Chongqing Huapu Quantum Technology Co., Ltd.

Inventor： Heping ZENG ,  Zhengru GUO ,  Tingting LIU

IPC: G02B27/28 ,  H01S3/10 ,  G02F1/39

CPC classification number: G02B27/288 ,  H01S3/10061 ,  G02F1/397

Abstract: Provided are a nonlinear polarization filtering method, device, and apparatus. The device comprises a pump source, a coupler, a birefringent medium, and several polarizers; wherein the pump source is applied to output a pump laser, so as to make a photo-induced birefringence effect occur at the birefringent medium; the polarizer is applied to polarize a signal light according to a preset polarizing angle; and the coupler is applied to couple the pump laser and the signal light into the birefringent medium, wherein an angle except 0° exists between the birefringent medium and the preset polarizing angle of the polarizer.

公开(公告)号：US11760638B2

公开(公告)日：2023-09-19

申请号：US17702386

申请日：2022-03-23

Applicant: Yunnan Huapu quantum Material Co., Ltd ,  ROI Optoelectronics Technology CO, LTD. ,  Chongqing Institute of East China Normal University ,  East China Normal University

Inventor： Heping Zeng ,  Chuan Yang ,  Mengyun Hu

IPC: C01B32/184 ,  B01J19/12

CPC classification number: C01B32/184 ,  B01J19/121 ,  B01J19/126

Abstract: Provided is a method for preparing a graphene material from an industrial hemp material by laser induction, which uses a skin, a stem and/or a root of industrial hemp as a carbon precursor-containing material and reduce the carbon precursor-containing material into graphene by laser induction, so as to prepare graphene, graphene quantum dots, a graphene mesoporous material and a graphene composite material.

公开(公告)号：US20230099476A1

公开(公告)日：2023-03-30

申请号：US17936070

申请日：2022-09-28

Applicant: Chongqing Institute of East China Normal University ,  East China Normal University ,  Yunnan Huapu Quantum Material Co., Ltd ,  ROI Optoelectronics Technology CO, LTD. ,  Chongqing Huapu New Energy Co.,Ltd. ,  Chongqing Huapu Information Technology Co.,Ltd. ,  Nanjing ROI Optoelectronics Technology Co.,Ltd.

Inventor： Heping ZENG ,  Yinqi WANG ,  Kun HUANG ,  Mengyun HU

IPC: H04N5/33 ,  H04N5/225

Abstract: A mid-infrared upconversion imaging method and a mid-infrared upconversion imaging device are provided, which are used for imaging detection in a mid-infrared wavelength band, and related to a technical field of infrared imaging. The method includes directing pump laser and mid-infrared light into a chirped crystal component located in an optical cavity to obtain visible light; and imaging an object with the visible light.