Patents by Inventor Dahuai ZHENG

Dahuai ZHENG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bismuth and magnesium co-doped lithium niobate crystal, preparation method thereof and application thereof
    Patent number: 10036102
    Abstract: A bismuth and magnesium co-doped lithium niobate crystal includes Li2CO3, Nb2O5, Bi2O3 and MgO, wherein the molar ratio of [Li] and [Nb] is 0.90-1.00, the molar percentage of Bi2O3 in the mixture is 0.25-0.80%, and the molar percentage of MgO in the mixture is 3.0-7.0%. The bismuth and magnesium co-doped lithium niobate crystal has enhanced photorefraction, improved photorefractive sensitivity, shortened holographic grating saturation writing time, and the photorefractive diffraction efficiency can reach up to 17%. The response time is only 170 ms, when the holographic storage experiment is carried out using 488 nm continuous laser. Therefore, this crystal can be used in the field of holographic imaging.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: July 31, 2018
    Assignees: NANKAI UNIVERSITY, TAISHAN SPORTS INDUSTRY GROUP CO., LTD.
    Inventors: Yongfa Kong, Dahuai Zheng, Shiguo Liu, Jingjun Xu, Peiming Xu, Zhiyong Bian, Shaolin Chen, Ling Zhang, Hongde Liu
  • BISMUTH AND MAGNESIUM CO-DOPED LITHIUM NIOBATE CRYSTAL, PREPARATION METHOD THEREOF AND APPLICATION THEREOF
    Publication number: 20170253994
    Abstract: A bismuth and magnesium co-doped lithium niobate crystal includes Li2CO3, Nb2O5, Bi2O3 and MgO, wherein the molar ratio of [Li] and [Nb] is 0.90-1.00, the molar percentage of Bi2O3 in the mixture is 0.25-0.80%, and the molar percentage of MgO in the mixture is 3.0-7.0%. The bismuth and magnesium co-doped lithium niobate crystal has enhanced photorefraction, improved photorefractive sensitivity, shortened holographic grating saturation writing time, and the photorefractive diffraction efficiency can reach up to 17%. The response time is only 170 ms, when the holographic storage experiment is carried out using 488 nm continuous laser. Therefore, this crystal can be used in the field of holographic imaging.
    Type: Application
    Filed: December 7, 2016
    Publication date: September 7, 2017
    Inventors: Yongfa KONG, Dahuai ZHENG, Shiguo LIU, Jingjun XU, Peiming XU, Zhiyong BIAN, Shaolin CHEN, Ling ZHANG, Hongde LIU