• Acta Optica Sinica
  • Vol. 41, Issue 3, 0313001 (2021)
Binbin Sheng1、2、3、4, Ling Wang1、2、*, Jintong Xu1、2, and Xiangyang Li1、2、3、4
Author Affiliations
  • 1State Key Laboratory of Transducer Technology, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
  • 2Key Laboratory of Infrared Imaging Materials and Detectors, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
  • 3School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China
  • 4University of Chinese Academy of Sciences, Beijing 100049, China
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    DOI: 10.3788/AOS202141.0313001 Cite this Article Set citation alerts
    Binbin Sheng, Ling Wang, Jintong Xu, Xiangyang Li. Extraction of Material Parameters by Transmission Spectra of AlGaN Film[J]. Acta Optica Sinica, 2021, 41(3): 0313001 Copy Citation Text show less
    Structure plot of the samples and light propagation plot. (a) Structure plot; (b) light propagation plot
    Fig. 1. Structure plot of the samples and light propagation plot. (a) Structure plot; (b) light propagation plot
    Measured transmission spectra of the samples
    Fig. 2. Measured transmission spectra of the samples
    Fitted transmission spectra. (a) Sample 1; (b) sample 2
    Fig. 3. Fitted transmission spectra. (a) Sample 1; (b) sample 2
    AFM images and horizontal section height profiles. (a)(b) Sample 1; (c)(d) sample 2
    Fig. 4. AFM images and horizontal section height profiles. (a)(b) Sample 1; (c)(d) sample 2
    Fitted absorption coefficient from the films transfer matrix of samples 1 and 2
    Fig. 5. Fitted absorption coefficient from the films transfer matrix of samples 1 and 2
    Fitted refractive index from transmission spectra of samples 1 and 2
    Fig. 6. Fitted refractive index from transmission spectra of samples 1 and 2
    ParameterSample 1Sample 2
    α1 /cm-18901630000
    α2 /cm-1156550
    E0 /eV4.544.85
    E1 /eV2.632.00
    EpitaxialAl0.65Ga0.35NlayerEurbach /eV0.0850.029
    A2.052.05
    B /nm245232
    C /nm150188
    d1 /nm10372861
    BufferlayerA'1.92.0
    d2/nm18.2626
    σ /nm15.85.44
    Table 1. Fitted parameters of transmission spectra
    Binbin Sheng, Ling Wang, Jintong Xu, Xiangyang Li. Extraction of Material Parameters by Transmission Spectra of AlGaN Film[J]. Acta Optica Sinica, 2021, 41(3): 0313001
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