Generation of Anti-Stokes Fluorescence in a Strongly Coupled Organic Semiconductor Microcavity

被引：25

作者：

Georgiou, Kyriacos ^{[1
]}

Jayaprakash, Rahul ^{[1
]}

Askitopoulos, Alexis ^{[2
,3
]}

Coles, David M. ^{[1
]}

Lagoudakis, Pavlos G. ^{[2
,3
]}

Lidzey, David G. ^{[1
]}

机构：

[1] Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England

[2] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

[3] Skolkovo Inst Sci & Technol, Moscow 143026, Russia

来源：

ACS PHOTONICS | 2018年 / 5卷 / 11期

基金：

英国工程与自然科学研究理事会;

关键词：

exciton-polaritons; anti-Stokes fluorescence; organic semiconductor; microcavities; ENERGY-TRANSFER; POLARITONS; EMISSION; EXCITONS; BODIPY; STATES; PHASE; DYES;

D O I：

10.1021/acsphotonics.8b00552

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We explore the generation of anti-Stokes fluorescence from strongly coupled organic dye microcavities following resonant ground-state excitation. We observe polariton emission along the lower polariton branch, with our results indicating that this process involves a return to the exciton reservoir and the absorption of thermal energy from molecules in a vibrationally excited ground-state. We speculate that the generation of a population of "hot" polaritons is enhanced by the fact that the cavity suppresses the emission of Stokes-shifted fluorescence, as it is energetically located below the cutoff frequency of the cavity.

引用

收藏

页码：4343 / 4351

页数：17

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