Experimental Verification of the Spectral Shift between Near- and Far-Field Peak Intensities of Plasmonic Infrared Nanoantennas

被引：153

作者：

Alonso-Gonzalez, P. ^{[1
]}

Albella, P. ^{[1
,2
,3
]}

Neubrech, F. ^{[4
]}

Huck, C. ^{[4
]}

Chen, J. ^{[1
,2
,3
]}

Golmar, F. ^{[1
,5
]}

Casanova, F. ^{[1
,6
]}

Hueso, L. E. ^{[1
,6
]}

Pucci, A. ^{[4
]}

Aizpurua, J. ^{[2
,3
]}

Hillenbrand, R. ^{[1
,6
]}

机构：

[1] CIC NanoGUNE, Donostia San Sebastian 20018, Spain

[2] Ctr Fis Mat CSIC UPV EHU, Donostia San Sebastian 20018, Spain

[3] DIPC, Donostia San Sebastian 20018, Spain

[4] Heidelberg Univ, Kirchhoff Inst Phys, D-69120 Heidelberg, Germany

[5] INTI CONICET, San Martin, Bs As, Argentina

[6] Basque Fdn Sci, IKERBASQUE, Bilbao 48011, Spain

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 20期

关键词：

NEAR-FIELD; SURFACE; SCATTERING; MODES; RESONANCES; MOLECULES; NANOPARTICLES; INTERFERENCE; SPECTROSCOPY; SPACE;

D O I：

10.1103/PhysRevLett.110.203902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Theory predicts a distinct spectral shift between the near- and far-field optical response of plasmonic antennas. Here we combine near- field optical microscopy and far-field spectroscopy of individual infrared-resonant nanoantennas to verify experimentally this spectral shift. Numerical calculations corroborate our experimental results. We furthermore discuss the implications of this effect in surface-enhanced infrared spectroscopy.

引用

页数：6

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