Tip-enhanced optical spectroscopy

被引：95

作者：

Hartschuh, A ^{[1
]}

Beversluis, MR ^{[1
]}

Bouhelier, A ^{[1
]}

Novotny, L ^{[1
]}

机构：

[1] Univ Rochester, Inst Opt, Rochester, NY 14627 USA

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2004年 / 362卷 / 1817期

关键词：

near-field optics; Raman spectroscopy; fluorescence imaging; second-harmonic generation;

D O I：

10.1098/rsta.2003.1348

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Spectroscopic methods with high spatial resolution are essential for understanding the physical and chemical properties of nanoscale materials including biological proteins, quantum structures and nanocomposite materials. In this paper, we describe microscopic techniques which rely on the enhanced electric field near a sharp, laser-irradiated metal tip. This confined light-source can be used for the excitation of various optical interactions such as two-photon excited fluorescence or Raman scattering. We study the properties of the enhanced fields and demonstrate fluorescence and Raman imaging with sub-20 nm resolution.

引用

页码：807 / 819

页数：13

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