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    Journals >Chinese Journal of Quantum Electronics >Volume 41 >Issue 6 >Page 970 > Article
    • Chinese Journal of Quantum Electronics
    • Vol. 41, Issue 6, 970 (2024)
    Spontaneous radiation properties of graphene⁃based core⁃shell structure
    SHI Shenxi1,*, WANG Zuohong1, SUN Mengran1, and ZHENG Gaige1,2
    Author Affiliations
  • 1School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology,Nanjing 210044, China
  • 2Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology,Nanjing University of Information Science & Technology, Nanjing 210044, China
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    DOI: 10.3969/j.issn.1007-5461.2024.06.013 Cite this Article
    Shenxi SHI, Zuohong WANG, Mengran SUN, Gaige ZHENG. Spontaneous radiation properties of graphene⁃based core⁃shell structure[J]. Chinese Journal of Quantum Electronics, 2024, 41(6): 970 Copy Citation Text show less
    Multilayer core-shell structure model for studying spontaneous radiation
    Fig. 1. Multilayer core-shell structure model for studying spontaneous radiation
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    Real part (a) and Imaginary part (b) of dielectric function of graphene
    Fig. 2. Real part (a) and Imaginary part (b) of dielectric function of graphene
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    When the radius of the core-shell structure of Au@SiO2@Graphene is {r1,r2,r3} = {30,40,50} nm: the normalized radiative and non-radiative decay rate versus rd when λ = 600 nm (a); the normalized radiative and nonradiative decay rate versus λ when rd = 70 nm (b)
    Fig. 3. When the radius of the core-shell structure of Au@SiO2@Graphene is {r1,r2,r3} = {30,40,50} nm: the normalized radiative and non-radiative decay rate versus rd when λ = 600 nm (a); the normalized radiative and nonradiative decay rate versus λ when rd = 70 nm (b)
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    Normalized radiative and non-radiative decay rate versus rd for Au@SiO2@Graphene models with different radius. (a) {r1,r2,r3} = {10,40,50} nm; (b) {r1,r2,r3} = {20,40,50} nm; (c) {r1,r2,r3} = {30,40,50} nm; (d) Purcell factor comparison of the structure with {r1,r2,r3} = {10,40,50} nm and {r1,r2,r3} = {20,50,60} nm
    Fig. 4. Normalized radiative and non-radiative decay rate versus rd for Au@SiO2@Graphene models with different radius. (a) {r1,r2,r3} = {10,40,50} nm; (b) {r1,r2,r3} = {20,40,50} nm; (c) {r1,r2,r3} = {30,40,50} nm; (d) Purcell factor comparison of the structure with {r1,r2,r3} = {10,40,50} nm and {r1,r2,r3} = {20,50,60} nm
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    (a) Normalized radiation and non-radiation decay rate versus wavelength for Au@SiO2@Graphene model with {r1,r2,r3} = {10,40,50} nm when rd=60 nm; (b) Normalized radiation and non-radiation decay rate versus rd for Au@SiO2@Graphene model with {r1,r2,r3} = {10,40,50} nm when wavelength is 633 nm
    Fig. 5. (a) Normalized radiation and non-radiation decay rate versus wavelength for Au@SiO2@Graphene model with {r1,r2,r3} = {10,40,50} nm when rd=60 nm; (b) Normalized radiation and non-radiation decay rate versus rd for Au@SiO2@Graphene model with {r1,r2,r3} = {10,40,50} nm when wavelength is 633 nm
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    Normalized radiative and non-radiative decay rate versus wavelengthfor Au@SiO2@Graphene models with different radium. (a) {r1,r2,r3} = {20,40,50} nm; (b) {r1,r2,r3} = {30,40,50} nm
    Fig. 6. Normalized radiative and non-radiative decay rate versus wavelengthfor Au@SiO2@Graphene models with different radium. (a) {r1,r2,r3} = {20,40,50} nm; (b) {r1,r2,r3} = {30,40,50} nm
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    Electric field distribution map of Au@SiO2@Graphene model at wavelength of 633 nm. (a) {r1,r2,r3} = {10,40,50} nm;(b) {r1,r2,r3} = {20,40,50} nm; (c) {r1,r2,r3} = {30,40,50} nm; (d) {r1,r2,r3} = {20,50,60} nm
    Fig. 7. Electric field distribution map of Au@SiO2@Graphene model at wavelength of 633 nm. (a) {r1,r2,r3} = {10,40,50} nm;(b) {r1,r2,r3} = {20,40,50} nm; (c) {r1,r2,r3} = {30,40,50} nm; (d) {r1,r2,r3} = {20,50,60} nm
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    Real ϵr and imaginary ϵi part of dielectric function of GO
    Fig. 8. Real ϵr and imaginary ϵi part of dielectric function of GO
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    Normalized radiation and non-radiation decay rate versus rd at wavelength of 633 nm for Au@SiO2@GO model with {r1,r2,r3} = {10,40,50} nm
    Fig. 9. Normalized radiation and non-radiation decay rate versus rd at wavelength of 633 nm for Au@SiO2@GO model with {r1,r2,r3} = {10,40,50} nm
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    Scattering pattern of two models with {r1,r2,r3} = {10,40,50} nm at wavelength of 633 nm.(a) Au@SiO2@Graphene; (b) Au@SiO2@GO
    Fig. 10. Scattering pattern of two models with {r1,r2,r3} = {10,40,50} nm at wavelength of 633 nm.(a) Au@SiO2@Graphene; (b) Au@SiO2@GO
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    Shenxi SHI, Zuohong WANG, Mengran SUN, Gaige ZHENG. Spontaneous radiation properties of graphene⁃based core⁃shell structure[J]. Chinese Journal of Quantum Electronics, 2024, 41(6): 970
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