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Acta Optica Sinica, Volume. 40, Issue 12, 1223001(2020)

Study of Optical Properties of High-Q GaN Disk-Shaped Microresonant Cavity

Geng He1,2,3, Yu Xu4、*, Bing Cao1,2,3、**, Qinhua Wang1,2,3, and Ke Xu4
Author Affiliations
  • 1School of Optoelectronic Science and Engineering, Soochow University, Suzhou, Jiangsu 215006, China
  • 2Jiangsu Key Laboratory of Advanced Optical Manufacturing Technologies, Soochow University, Suzhou, Jiangsu 215006, China
  • 3Key Laboratory of Modern Optical Technologies, Ministry of Education, Soochow University, Suzhou, Jiangsu 215006, China
  • 4Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
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    Figures&Tables (6)
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    Figures & Tables(6)
    Structural diagram of microdisk laser structure

    Fig. 1. Structural diagram of microdisk laser structure

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    SEM image of GaN microdisk. (a) Top surface; (b) side surface

    Fig. 2. SEM image of GaN microdisk. (a) Top surface; (b) side surface

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    Defect level of GaN microdisk. (a) CL image; (b) PL spectrum

    Fig. 3. Defect level of GaN microdisk. (a) CL image; (b) PL spectrum

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    PL spectra. (a) Receiving direction parallel to C axis; (b) receiving direction vertical to C axis

    Fig. 4. PL spectra. (a) Receiving direction parallel to C axis; (b) receiving direction vertical to C axis

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    Dependent-power PL spectra of GaN microdisk laser and light microscope image shown in inset

    Fig. 5. Dependent-power PL spectra of GaN microdisk laser and light microscope image shown in inset

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    Simulation results of 2D-COMSOL light field

    Fig. 6. Simulation results of 2D-COMSOL light field

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    Geng He, Yu Xu, Bing Cao, Qinhua Wang, Ke Xu. Study of Optical Properties of High-Q GaN Disk-Shaped Microresonant Cavity[J]. Acta Optica Sinica, 2020, 40(12): 1223001

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    Paper Information

    Category: Optical Devices

    Received: Feb. 21, 2020

    Accepted: Mar. 23, 2020

    Published Online: Jun. 3, 2020

    The Author Email: Xu Yu (yxu2007@sinano.ac.cn), Cao Bing (bingcao@suda.edu.cn)

    DOI:10.3788/AOS202040.1223001

    Topics

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