Active Control of the Strong Coupling Regime between Porphyrin Excitons and Surface Plasmon Polaritons

被引：68

作者：

Berrier, Audrey ^{[1
]}

Cools, Ruud ^{[1
]}

Arnold, Christophe ^{[1
]}

Offermans, Peter ^{[3
]}

Crego-Calama, Mercedes ^{[3
]}

Brongersma, Sywert H. ^{[3
]}

Rivas, Jaime Gomez ^{[1
,2
]}

机构：

[1] Philips Res Labs, FOM Inst AMOLF, Ctr Nanophoton, NL-5656 AE Eindhoven, Netherlands

[2] Eindhoven Univ Technol, COBRA Res Inst, NL-5600 MB Eindhoven, Netherlands

[3] Holst Ctr Imec Nl, NL-5656 AE Eindhoven, Netherlands

来源：

ACS NANO | 2011年 / 5卷 / 08期

关键词：

normal mode coupling; polariton splitting; porphyrin dye; surface plasmon polariton; strong coupling; active control; SEMICONDUCTOR MICROCAVITIES; NITROGEN-DIOXIDE; CAVITY; PHOTON; RESONANCE; MOLECULE; ATOMS; FILMS;

D O I：

10.1021/nn201077r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We experimentally demonstrate the active control of the coupling strength between porphyrin dyes and surface plasmon polaritons supported by a thin gold layer. This control is externally exerted by a gas flow and is reversible. The hybridized exciton-polariton branches resulting from the exciton-plasmon coupling display a splitting proportional to the coupling strength of the light-matter interaction. The coupled system changes from the weak (no splitting) to the strong coupling regime (splitting of 130 meV) by controlling the effective oscillator strength in the dye layer, via exposure to nitrogen dioxide. The modification of the coupling strength of the system allows tailoring of the dispersion of the hybridized modes as well as of their group velocity.

引用

页码：6226 / 6232

页数：7

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