期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷 183, 期 3, 页码 322-328出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2006.06.031
关键词
SERRS; Rayleigh scattering; plasmon resonance; Ag nanoaggregate; dark-field microspectroscopy; single nanoparticle spectroscopy
The current work demonstrates development of a dark-field microspectroscopic system by combining Rayleigh scattering spectroscopy and surface-enhanced resonance Raman scattering (SERRS) spectroscopy on an optical microscope. The microspectroscopic system was helpful for identifying plasmon resonance Rayleigh scattering from isolated Ag nanoaggregates and simultaneous measurements of SERRS signals from the nanoaggregates. Furthermore, the use of a microspectroscopic system for correlated measurements of plasmon resonance Rayleigh scattering and SERRS signals enabled us to establish relationships between SERRS, excitation polarization, excitation energy, and plasmon resonance energy. The relationships between SERRS, excitation polarization, excitation energy, and plasmon resonance energy allowed us not only to identify optimum excitation condition for maximum SERRS but also clarification of a mechanism underlying SERRS. Details of microspectroscopic system, measurement of plasmon resonance Rayleigh scattering and SERRS, and a mechanism of SERRS are discussed. (c) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据