吉首大学学报（自然科学版）2025，Vol.46Issue(4)：52-60,9.DOI:10.13438/j.cnki.jdzk.2025.04.008
量子效应对双同心钠纳米球壳吸收光谱的影响
Quantum Effects on the Absorption Spectrum of Double Concentric Na Nanoshells
摘要
Abstract
To investigate the quantum effects on the absorption spectra of double concentric sodium nanoshells and compare them with the local response approximation model(LRAM)and hard-wall hy-drodynamic model(HDM),the quantum hydrodynamic model(QHDM)was employed based on coupled-mode theory to analyze the coupling characteristics of resonance modes on the inner and outer surfaces of a single shell,as well as the surface plasmon resonance properties of double concentric sodium nanoshells.The results indicate that,for a single-shell structure,LRAM predicts that as the inner cavity radius increases,the low-energy mode redshifts while the high-energy mode blueshifts;when the shell thickness increases,the low-energy mode blueshifts while the high-energy mode redshifts.In the case of the double concentric sodium nanosphere shell structure,when the spacing between shells is large,the two high-energy modes predicted by the HDM model exhibit a significant blueshift compared to LRAM predictions,whereas the same modes predicted by the QHDM model show a substantial redshift.Fur-thermore,when the outer shell thickness is large,the two low-energy modes predicted by both HDM and QHDM exhibit a slight blueshift relative to LRAM predictions,while the two high-energy modes predicted by HDM show a significant blueshift and those predicted by QHDM demonstrate a significant redshift.关键词
表面等离激元/吸收光谱/量子流体动力学模型/双同心钠纳米球壳Key words
surface plasmonic/absorption spectrum/quantum hydrodynamic model/double concentric Na nanoshells分类
数理科学引用本文复制引用
张明富,单馨雨,黄勇刚..量子效应对双同心钠纳米球壳吸收光谱的影响[J].吉首大学学报（自然科学版）,2025,46(4):52-60,9.基金项目
国家自然科学基金资助项目(12464049) （12464049）
湖南省教育厅科学研究项目(24C0254,22A0373,22A0377) （24C0254,22A0373,22A0377）
吉首大学科研项目(JD23005) （JD23005）
吉首大学学位与研究生教学改革研究项目(JG2022B01) （JG2022B01）
