Visual observations of SERRS from single silver-coated silica microparticles within optical tweezers

被引:17
作者
McNay, G
Docherty, FT
Graham, D
Smith, WE
Jordan, P
Padgett, M
Leach, J
Sinclair, G
Monaghan, PB
Cooper, JM
机构
[1] Univ Strathclyde, Dept Pure & Appl Chem, Glasgow G1 1XL, Lanark, Scotland
[2] Univ Glasgow, Dept Phys, Glasgow, Lanark, Scotland
[3] Univ Glasgow, Dept Elect Engn, Glasgow, Lanark, Scotland
关键词
azo compounds; microparticles; optical tweezers; Raman spectroscopy; silver;
D O I
10.1002/anie.200352999
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Surface-enhanced resonance Raman scattering (SERRS) is considerably more efficient than Raman spectroscopy, thereby enabling the detection of single molecules. Strong and short-lived SERRS emissions (< 100 ms) from single, partially silver-coated, dye-adsorbed microparticles have been detected within optical tweezers (see picture). Full spectra, recorded from single particles, clearly show that the emission is due to SERRS.
引用
收藏
页码:2512 / 2514
页数:3
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