摘要: we develop a precise modelling where nonlocal electro-opto-thermal interactions are comprehensively included for the analysis of nonlinear Raman enhancement and plasmonic heating. An interaction enhancement factor G(IEF) is introduced to quantify the coupling between the electromagnetic field and the temperature field which is rarely considered in the estimation of Raman enhancement. For the case of isolated single nanosphere, G(IEF) can be up to ten, indicating a thermal origin which well explains the observed temperature rise, shortened blinking period, and the nonlinearly enhanced Raman cross-section. For the case of nanodimer, the suppression of plasmon heating was analyzed, demonstrating the great capability to mitigate biomolecular degradation and blinking. 其他題名: Opt Express 出版者: United States 出版日期: 2013-10-21 出處: Optics express, 2013-10, Vol.21 (21), p.25026 資源來源: Optica 識別號: ISSN: 1094-4087 識別號: EISSN: 1094-4087 識別號: DOI: 10.1364/OE.21.025026 識別號: PMID: 24150345