Optical near-field Raman imaging with subdiffraction resolution

被引：23

作者：

Gucciardi, PG

Trusso, S

Vasi, C

Patané, S

Allegrini, M

机构：

[1] CNR, Ist Proc Chimicofis, Sez Messina, I-98123 Messina, Italy

[2] Univ Messina, Dipartimento Fis Mat & Tecnol Fis Avanzate, Ist Nazl Fis Mat, I-98166 Messina, Italy

[3] Univ Pisa, Dipartimento Fis, Ist Nazl Fis Mat, I-56127 Pisa, Italy

来源：

APPLIED OPTICS | 2003年 / 42卷 / 15期

关键词：

D O I：

10.1364/AO.42.002724

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report optical near-field Raman imaging with subdiffraction resolution (similar to120 nm) without field enhancement effects. Chemical discrimination on tetracyanoquinodimethane organic thin films showing localized salt complexes is accomplished by detailed Raman maps. Acquisition times that are much shorter than previously reported are due to the high Raman efficiency of the materials and to a careful collection and detection of the optical signals in our near-field Raman spectrometer. (C) 2003 Optical Society of America.

引用

页码：2724 / 2729

页数：6

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