飞秒
拉曼光谱
等离子体子
表面增强拉曼光谱
材料科学
激发波长
激发
超短脉冲
光谱学
波长
拉曼散射
纳米技术
光电子学
激光器
光学
物理
量子力学
作者
Bogdan Negru,Michael O. McAnally,Hannah E. Mayhew,Tyler W. Ueltschi,Lingxuan Peng,Emily A. Sprague-Klein,George C. Schatz,Richard P. Van Duyne
标识
DOI:10.1021/acs.jpcc.7b09664
摘要
Surface-enhanced femtosecond stimulated Raman spectroscopy (SE-FSRS) is a technique that has the potential to study the ultrafast dynamics of surface adsorbates with simultaneously high temporal and spectral resolutions. One of the greatest impediments to the further development of SE-FSRS is the lack of high-quality plasmonic substrates that permit excitation and prove wavelength agility as well as flexible selection of the adsorbate molecule. Herein, we present a simple aggregation/stabilization procedure for the formation of gold nanosphere oligomers with tunable plasmonic properties and flexible choice of adsorbate that are ideal for SE-FSRS and other coherent Raman spectroscopies.
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