公开(公告)号：US12090576B2

公开(公告)日：2024-09-17

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 ,  B01L3/00 ,  B23K26/067 ,  B23K26/361 ,  B23K26/70

CPC classification number: B23K26/55 ,  B01L3/502707 ,  B23K26/067 ,  B23K26/361 ,  B23K26/702

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：US20240175118A1

公开(公告)日：2024-05-30

申请号：US18516292

申请日：2023-11-21

Applicant: Chongqing Huapu Information Technology Co.,Ltd. ,  Chongqing Huapu Quantum Technology Co.,Ltd. ,  Chongqing Huapu New Energy Co.,Ltd. ,  Chongqing Menghe Biotechnology 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 ,  C23C14/54

CPC classification number: C23C14/28 ,  C23C14/542

Abstract: A pulsed laser deposition method is provided. The method includes emitting a plurality of groups of femtosecond pulses, focusing the plurality of groups of femtosecond pulses into a plurality of groups of femtosecond filaments by lenses, and cross-coupling the plurality of groups of femtosecond filaments to form n beams of plasma gratings; exciting a target material by using a first plasma grating; and adjusting angles of the lenses and time delay between a plurality of beams of femtosecond pulses; coupling and splicing a second plasma grating with the first plasma grating along a grating pattern of the first plasma grating, until a nth plasma grating is coupled and spliced with a (n−1)th plasma grating along a grating pattern of the (n−1)th plasma grating to form a plasma grating channel; and exciting the target material by using the plasma grating channel to complete deposition on a substrate.

公开(公告)号：US20240026524A1

公开(公告)日：2024-01-25

申请号：US18353684

申请日：2023-07-17

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

Inventor： Heping ZENG ,  Mengyun HU ,  Yu QIAO

IPC: C23C14/28 ,  C23C14/06 ,  C23C14/02 ,  C23C14/54 ,  C03C17/42

CPC classification number: C23C14/28 ,  C23C14/0605 ,  C23C14/021 ,  C23C14/0652 ,  C23C14/542 ,  C03C17/42 ,  C03C2217/732 ,  C03C2217/76 ,  C03C2218/151 ,  C03C2218/31

Abstract: A processing method and apparatus for ultrafast laser deposition of a multilayer film including a diamond-like carbon film, an anti-reflection film and an anti-fingerprint film includes: generating primary plasma by first excitement on a target material with a femtosecond or picosecond pulsed laser beam as a pre-pulse; and generating secondary plasma by second excitement on the target material under plasma grating, formed by allowing two femtosecond pulsed laser beams to intersect at a small include angle for interaction in the primary plasma, for deposition to coat a film.

公开(公告)号：US20230291169A1

公开(公告)日：2023-09-14

申请号：US18181683

申请日：2023-03-10

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: H01S3/13 ,  H01S3/1112 ,  H01S3/00 ,  H01S3/137 ,  H01S3/16

CPC classification number: H01S3/1305 ,  H01S3/0078 ,  H01S3/1112 ,  H01S3/137 ,  H01S3/1643

Abstract: A frequency stabilizing system for high precision single-cavity multi-frequency comb includes a single-cavity multi-comb pulse oscillator, a frequency detection system, and a frequency feedback control system. The single-cavity multi-comb pulse oscillator is configured to output mode-locked pulse trains with a certain repetition rate difference at two or more central wavelengths. The frequency detection system is configured to detect the frequency signal, and output the corresponding electrical signal. The frequency feedback control system is configured to process the electrical signal from the frequency detection system, and transmit it to the frequency response component in the single-cavity multi-comb pulse oscillator to control a strain of the frequency response component, so as to realize feedback control on the frequency (repetition rate, repetition rate difference, and carrier envelope offset frequency) of the mode-locked pulse trains.

公开(公告)号：US20230125338A1

公开(公告)日：2023-04-27

申请号：US18046185

申请日：2022-10-13

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

Inventor： Heping ZENG ,  Mengyun HU

IPC: B01J21/06 ,  B01J21/18 ,  B01J29/06 ,  B01J21/16 ,  B01J35/00 ,  B01J35/10 ,  B01J37/04 ,  B01J37/03 ,  B01J37/02 ,  B01J37/00 ,  B01J37/06 ,  B01J37/08

Abstract: A method for preparing a core-shell structure photocatalytic material includes: obtaining a titanyl sulfate solution by mixing and reacting sulfuric acid and metatitanic acid; obtaining a mixed solution by adding a porous material having a hydrophilic surface into the titanyl sulfate solution; adding an alkali into the mixed solution to obtain a precipitation product by reacting the alkali with the titanyl sulfate coated on the surface of the porous material; and filtering, washing, drying and calcining the precipitation product to obtaining a core-shell structure photocatalytic material with the porous material as a core and a mesoporous quantum titanium oxide as a shell.

公开(公告)号：US20230094973A1

公开(公告)日：2023-03-30

申请号：US17936477

申请日：2022-09-29

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

Inventor： Heping ZENG ,  Mengyun HU

IPC: G01N21/71 ,  G01N21/64 ,  G01N21/01

Abstract: A detection method based on laser-induced breakdown spectroscopy enhanced by a two-dimensional plasma grating includes: generating a femtosecond laser pulse by a femtosecond laser, and splitting the femtosecond laser pulse into three sub-pulses by a beam splitting unit; focusing the three sub-pulses separately by a focusing unit to allow focused sub-pulses to be overlapped at an intersection in space, wherein before reaching the intersection, the three sub-pulses form two planes; synchronizing the three sub-pulses in a time domain by adjusting optical paths of the three sub-pulses in such a way that they have the same optical length and the three sub-pulses arrive at the intersection in space simultaneously and form the two-dimensional plasma grating; and exciting a sample on a stage based on the two-dimensional plasma grating to generate a plasma cluster, and acquiring a spectrum of the sample.

公开(公告)号：US20220306474A1

公开(公告)日：2022-09-29

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 ,  B01J21/18

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：US20220158409A1

公开(公告)日：2022-05-19

申请号：US17528315

申请日：2021-11-17

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

Inventor： Heping ZENG ,  Xiao WANG ,  Shuang LI ,  Mengyun HU

IPC: H01S3/13 ,  H01S3/0941

Abstract: A driving and stabilization system for a pump laser, and a pump laser system. The driving and stabilization system includes a constant current stabilization device, a constant temperature stabilization device, a power detection device, an environment detection device, and a control device. The constant current stabilization device includes a voltage comparison circuit, a constant current driving circuit, and a switch protection circuit. The constant temperature stabilization device includes an internal constant temperature stabilization circuit and an external constant temperature stabilization circuit.

公开(公告)号：US20220155233A1

公开(公告)日：2022-05-19

申请号：US17528271

申请日：2021-11-17

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

Inventor： Heping ZENG ,  Tianjian LV ,  Ming YAN

IPC: G01N21/65

Abstract: A Raman spectrometric imaging method, including: placing a sample on a two-dimensional translation stage; emitting a first light beam by a first optical comb light source; dividing the first light beam into a pump light beam and a depletion light beam to illuminate the sample; guiding the pump light beam to illuminate a region of the sample to excite molecules of the sample in the region; guiding the depletion light beam to the region of the sample to make excited molecules at a periphery of the region to return into a vibrational ground state; emitting a second light beam as a probe light beam by a second optical comb light source to the remaining excited molecules to generate a CARS signal; recording the CARS signal for imaging; moving the two-dimensional translation stage to scan other regions of the sample to form an image of the sample.

公开(公告)号：US11286207B2

公开(公告)日：2022-03-29

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.