DEVICE BASED ON ENSEMBLE NITROGEN-VACANCY CENTERS

    公开(公告)号:US20240219485A1

    公开(公告)日:2024-07-04

    申请号:US18557859

    申请日:2022-03-28

    CPC classification number: G01R33/032

    Abstract: Provided is a device based on ensemble nitrogen-vacancy centers, including: a right-angle prism; a dichroic parabolic condensing lens, a bottom opening oblique plane of the dichroic parabolic condensing lens is fixed on an oblique plane of the right-angle prism, and the dichroic parabolic condensing lens is configured to polarize the ensemble nitrogen-vacancy centers by an incident laser and collect a fluorescence signal at the ensemble nitrogen-vacancy center; a diamond, the diamond is a layered diamond, including a first face and a second face opposite to the first face, the first face is fixed at a top of a paraboloid of the dichroic parabolic condensing lens, and the second face includes the ensemble nitrogen-vacancy centers; a Lenz lens attached to the second face and configured to converge microwave magnetic field; a microwave coil located above the Lenz lens and configured to apply microwave magnetic field to the ensemble nitrogen-vacancy centers.

    FIXED POINT DEFECT DOPING METHOD FOR MICRO-NANOSTRUCTURE, AND NV CENTER SENSOR

    公开(公告)号:US20240093345A1

    公开(公告)日:2024-03-21

    申请号:US18250396

    申请日:2020-11-30

    CPC classification number: C23C14/042 C23C14/48 G01D5/268

    Abstract: The present disclosure provides a fixed-position defect doping method for a micro-nanostructure based on a self-alignment process, including: S1, sequentially forming a sacrificial layer and a photoresist layer on a surface of a crystal substrate; S2, performing a lithography on the photoresist layer to form a mask hole according to a micro-nano pattern; S3, performing an isotropic etching on the sacrificial layer through the mask hole, and amplifying the micro-nano pattern to the sacrificial layer; S4, performing an ion implantation doping on an exposed crystal surface below the mask hole; S5, removing the photoresist layer, and depositing a mask material; S6, removing the sacrificial layer, and transferring a micro-nano amplified pattern in the sacrificial layer to a mask material pattern; and S7, etching an exposed crystal surface, and removing the mask material on the surface and forming a specific defect by annealing.

    Quantum communication method, apparatus, and system

    公开(公告)号:US11476950B2

    公开(公告)日:2022-10-18

    申请号:US17390473

    申请日:2021-07-30

    Abstract: A quantum communication method, an apparatus, and a system are provided. The method includes: modulating a first symbol to an ith direction vector of a first electric wave based on a preset mapping relationship, to obtain a second electric wave; and transmitting the second electric wave, where the first electric wave supports M direction vectors, the ith direction vector of the first electric wave is one of the M direction vectors of the first electric wave, the first symbol is a symbol corresponding to first data, the ith direction vector of the first electric wave corresponds to an ith distribution result, the ith distribution result is obtained by converting the second electric wave into an energy quantum. The first symbol may be modulated to a direction vector of the first electric wave, and this application is compatible with the conventional technology.

    SURFACE-NANOCRYSTALLIZED CELLULOSE-CONTAINING BIOMASS MATERIAL, PREPARATION METHOD AND USE THEREOF

    公开(公告)号:US20220144972A1

    公开(公告)日:2022-05-12

    申请号:US17436008

    申请日:2019-12-13

    Abstract: The present disclosure provides a surface-nanocrystallized cellulose-containing biomass material, a preparation method and use thereof. The cellulose-containing biomass material is one or more derived from biomass materials containing cellulose components from natural plants or animals. Nanoscale celluloses are present on a surface of the surface-nanocrystallized cellulose-containing biomass material, and a portion of hydroxyl groups in the cellulose structure has been converted to carboxyl groups, such that the surface-nanocrystallized cellulose-containing biomass material has high specific surface area, high surface activity, and high crystallinity. Thus, the present application provides an excellent raw material for the further processing of biomass materials.

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