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金纳米星和 J-聚集体杂化系统中的强等离子激元-激子耦合。

Strong plasmon-exciton coupling in a hybrid system of gold nanostars and J-aggregates.

机构信息

Centro de Física de Materiales (MPC, CSIC-UPV/EHU), Donostia International Physics Center (DIPC), Po Manuel de Lardizabal 5, Donostia-San Sebastian 20018, Spain.

出版信息

Nanoscale Res Lett. 2013 Mar 22;8(1):134. doi: 10.1186/1556-276X-8-134.

DOI:10.1186/1556-276X-8-134
PMID:23522305
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3610247/
Abstract

Hybrid materials formed by plasmonic nanostructures and J-aggregates provide a unique combination of highly localized and enhanced electromagnetic field in metal constituent with large oscillator strength and extremely narrow exciton band of the organic component. The coherent coupling of localized plasmons of the multispiked gold nanoparticles (nanostars) and excitons of JC1 dye J-aggregates results in a Rabi splitting reaching 260 meV. Importantly, broad absorption features of nanostars extending over a visible and near-infrared spectral range allowed us to demonstrate double Rabi splitting resulting from the simultaneous coherent coupling between plasmons of the nanostars and excitons of J-aggregates of two different cyanine dyes.

摘要

由等离子体纳米结构和 J-聚集体形成的混合材料提供了高度局域化和增强的电磁场与有机成分的大振子强度和极窄激子带的独特组合。多刺金纳米粒子（纳米星）的局域等离子体与 JC1 染料 J-聚集体的激子的相干耦合导致 Rabi 分裂达到 260 meV。重要的是，纳米星的宽吸收特征延伸到可见和近红外光谱范围，使我们能够证明双 Rabi 分裂，这是由于纳米星的等离子体与两种不同的菁染料 J-聚集体的激子之间的同时相干耦合。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/70cf4192521d/1556-276X-8-134-6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/deb5a31ead3e/1556-276X-8-134-1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/137452db3c17/1556-276X-8-134-2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/f90f0f793bcf/1556-276X-8-134-3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/110a663eaefe/1556-276X-8-134-4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/99d78c82f18d/1556-276X-8-134-5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/70cf4192521d/1556-276X-8-134-6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/deb5a31ead3e/1556-276X-8-134-1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/137452db3c17/1556-276X-8-134-2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/f90f0f793bcf/1556-276X-8-134-3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/110a663eaefe/1556-276X-8-134-4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/99d78c82f18d/1556-276X-8-134-5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/671e/3610247/70cf4192521d/1556-276X-8-134-6.jpg

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