Non-Radiative Energy Transfer Mediated by Hybrid Light-Matter States

详细信息    查看全文

• 作者：Dr. Xiaolan Zhong ; Thibault Chervy ; Dr. Shaojun Wang ; Dr. Jino George ; Dr. Anoop Thomas ; Dr. James A. Hutchison ; Dr. Eloise Devaux ; Dr. Cyriaque Genet and Prof. Thomas W. Ebbesen
• 刊名：Angewandte Chemie International Edition
• 出版年：2016
• 出版时间：May 17, 2016
• 年：2016
• 卷：55
• 期：21
• 页码：6202-6206
• 全文大小：2277K
• ISSN：1521-3773

文摘

We present direct evidence of enhanced non-radiative energy transfer between two J-aggregated cyanine dyes strongly coupled to the vacuum field of a cavity. Excitation spectroscopy and femtosecond pump–probe measurements show that the energy transfer is highly efficient when both the donor and acceptor form light-matter hybrid states with the vacuum field. The rate of energy transfer is increased by a factor of seven under those conditions as compared to the normal situation outside the cavity, with a corresponding effect on the energy transfer efficiency. The delocalized hybrid states connect the donor and acceptor molecules and clearly play the role of a bridge to enhance the rate of energy transfer. This finding has fundamental implications for coherent energy transport and light-energy harvesting.