ATR-SNOM-Raman spectroscopy

被引：22

作者：

Futamata, M

Bruckbauer, A

机构：

[1] Natl Inst Adv Ind Sci & Technol, Nanoarchitecton Res Ctr, Joint Res Ctr Atom Technol, AIST 4, Tsukuba, Ibaraki 3058562, Japan

[2] JRCAT, Angstrom Technol Partnership, Tsukuba, Ibaraki 3050046, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 341卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(01)00545-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, (1) an ATR-SNOM-Raman equipment was built to obtain topography and SNOM images simultaneously, (2) Raman spectra from copper phthalocyanine (CuPc) were obtained with 600 s without using the resonance effect, (3) the optimum conditions to excite the LSP (Localized Surface Plasmon) on the Ag island films were found, (4) the Raman signal from CuPc (1.5 nm) was enhanced by a factor of ca. 300 using the Ag island film (5 nm), which gives 36 counts/s for ca. 7000 molecules assuming a sampled volume of phi 50 nm x 1.5 nm thickness, and enables us to obtain the Raman spectra in 2 s. At last, (5) SNOM-Raman signal arises from the surface < ca. 2 nm similar to a localized SPP field. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：425 / 430

页数：6

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