公开(公告)号：US20230103114A1

公开(公告)日：2023-03-30

申请号：US17936204

申请日：2022-09-28

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 ,  Chuan YANG

IPC: C01B32/194

Abstract: A process for preparing a graphene quantum material includes: providing a carbon-containing precursor; decomposing the carbon-containing precursor with ultra-fast laser to obtain the graphene quantum material; optionally reducing graphene oxide into graphene with laser; and optionally subjecting the graphene quantum material to microwave heating.

公开(公告)号：US20230093899A1

公开(公告)日：2023-03-30

申请号：US17936923

申请日：2022-09-30

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 Scientific Instrument Co.,Ltd. ,  Chongqing Huapu Intelligent Equipment Co., Ltd. ,  GuangDong ROI Optoelectronics Technology Co., Ltd.

Inventor： Heping ZENG ,  Mengyun HU

IPC: G01N21/71 ,  G01J3/18 ,  G02B27/10

Abstract: A multipulse-induced spectroscopy method based on a femtosecond plasma grating includes: pre-exciting a sample on a stage by providing a femtosecond pulse to form the femtosecond plasma grating; providing a post-pulse on the sample at an angle to excite the sample to generate a plasma, wherein the post-pulse comprises one or more femtosecond pulses, there is a time interval between the femtosecond pulse and the post-pulse, and the time interval is less than a lifetime of the femtosecond plasma grating; and receiving and analyzing a fluorescence emitted from the plasma to determine element information of the sample.