An ultrafast spectroscopy study of stimulated emission in poly (9,9-dioctylfluorene) films and microcavities

被引：37

作者：

Virgili, T

Lidzey, DG

Bradley, DDC

Cerullo, G

Stagira, S

De Silvestri, S

机构：

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

[2] Univ Sheffield, Ctr Mol Mat, Sheffield S3 7RH, S Yorkshire, England

[3] Politecn Milan, INFM, Dipartimento Fis, I-20133 Milan, Italy

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 19期

关键词：

D O I：

10.1063/1.124008

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report measurements of stimulated emission in poly(9,9-dioctylfluorene). We find a gain coefficient of 1.2X10(4) cm(-1) for 100 nm-thick films at an excitation energy density of 9.9 mJ/cm(2). Using ultrafast pump-probe measurements, we have studied the effect of cavity optical confinement. A strong shift of the cavity resonance due to nonlinear refraction is observed. (C) 1999 American Institute of Physics. [S0003-6951(99)03219-2].

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页码：2767 / 2769

页数：3

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