Kaijian Huang, Shixiong Li, Zhongchen Bai, Zhengping Zhang, Shuijie Qin. Surface Plasmons Based on Nonlocal and Size-Dependent Effects of Metallic Nanoparticles[J]. Laser & Optoelectronics Progress, 2019, 56(20): 202414
- Laser & Optoelectronics Progress
- Vol. 56, Issue 20, 202414 (2019)
Fig. 1. Absolute value of real part of nonlocal dielectric function for Ag as a function of frequency ω and wavenumber k
Fig. 2. Schematic of simulation model
Fig. 3. EELS spectra of Ag spherical nanoparticles with different radii R obtained from different dielectric models. (a) Results of electron beam penetrating center of nanospheres as indicated in Fig. 2; (b) results of electron beam passing near surface of Ag nanospheres when d=2 nm
Fig. 4. EELS spectra of Ag spherical nanoparticles obtained from different dielectric models when electron beam is outside Ag nanospheres and d=2 nm. (a) R=1 nm; (b) R=18 nm
Fig. 5. (a) Maximum plasmonic resonance peak wavelengths and (b) corresponding extinction coefficients of extinction cross-sections calculated by different dielectric models for Ag spherical nanoparticles with different radii
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