Plasmonic phenomena in indium tin oxide and ITO-Au hybrid films

被引：102

作者：

Franzen, Stefan ^{[1
]}

Rhodes, Crissy ^{[1
]}

Cerruti, Marta ^{[1
]}

Gerber, Ralph W. ^{[1
]}

Losego, Mark ^{[2
]}

Maria, Jon-Paul ^{[2
]}

Aspnes, D. E. ^{[3
]}

机构：

[1] N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA

[2] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA

[3] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA

来源：

OPTICS LETTERS | 2009年 / 34卷 / 18期

关键词：

OPTICAL-PROPERTIES; RESONANCE; GOLD; SILVER; NANOPARTICLES; TRANSPARENT; POLARITONS; FREQUENCY;

D O I：

10.1364/OL.34.002867

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The observation of surface-plasmon resonances in indium tin oxide (ITO) thin films is complemented with the effects of hybrid ITO/Au conducting layers where charge densities can be tuned. Where carrier densities are similar (ITO and nanoparticle Au), the plasmonic behavior is that of a monolithic ITO thin film. Where the carrier density of one layer is much greater than that of the other (ITO and Au metal), boundary conditions lead to cancelation of the surface plasmon. In the latter case a capacitivelike plasmon resonance is observed for sufficiently thin films. (C) 2009 Optical Society of America

引用

页码：2867 / 2869

页数：3

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