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Acta Optica Sinica, Volume. 42, Issue 10, 1014001(2022)

Measurement of Co 2+∶MgAl2O4 Absorption Cross-Sections by Determining Dipole Orientation

Yu Wang1, Weichong Wu1, Zhanda Zhu1,2,3,4, Yongling Hui1,2,3,4, Hong Lei1,2,3,4、**, and Qiang Li1,2,3,4、*
Author Affiliations
  • 1Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
  • 2Beijing Engineering Research Center of Laser Applied Technology, Beijing 100124, China
  • 3Beijing Colleges and Universities Engineering Research Center of Advanced Laser Manufacturing, Beijing 100124, China
  • 4Key Laboratory of Trans-Scale Laser Manufacturing Technology, Ministry of Education, Beijing 100124, China
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    Crystal structures of Co2+∶MgAl2O4 cell. (a) 8 Co2+-ions with site symmetry of C3 and S4 (spheres in tetrahedrons); (b) projection of Co2+-ions satisfying C3 symmetry and S4 symmetry in [100] and [111] directions, respectively

    Fig. 1. Crystal structures of Co2+∶MgAl2O4 cell. (a) 8 Co2+-ions with site symmetry of C3 and S4 (spheres in tetrahedrons); (b) projection of Co2+-ions satisfying C3 symmetry and S4 symmetry in [100] and [111] directions, respectively

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    Schematic of transition of Co2+ dipole along the C3 axis parallel to [111], [11-1-], [1-11-], and [1-1-1] directions

    Fig. 2. Schematic of transition of Co2+ dipole along the C3 axis parallel to [111], [11-1-], [1-11-], and [1-1-1] directions

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    Experimental setup for measuring transmittance

    Fig. 3. Experimental setup for measuring transmittance

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    Relationship between transmittance and incident energy fluence of Co2+∶MgAl2O4 crystals cut along [100] direction

    Fig. 4. Relationship between transmittance and incident energy fluence of Co2+∶MgAl2O4 crystals cut along [100] direction

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    Yu Wang, Weichong Wu, Zhanda Zhu, Yongling Hui, Hong Lei, Qiang Li. Measurement of Co 2+∶MgAl2O4 Absorption Cross-Sections by Determining Dipole Orientation[J]. Acta Optica Sinica, 2022, 42(10): 1014001

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Oct. 18, 2021

    Accepted: Dec. 6, 2021

    Published Online: May. 10, 2022

    The Author Email: Lei Hong (eihong@bjut.edu.cn), Li Qiang (ncltlq@bjut.edu.cn)

    DOI:10.3788/AOS202242.1014001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology