Amplified spontaneous emission in the near infrared from a dye-doped polymer thin film

被引：25

作者：

Thompson, J ^{[1
]}

Anni, A ^{[1
]}

Lattante, S ^{[1
]}

Pisignano, D ^{[1
]}

Blyth, RIR ^{[1
]}

Gigli, R ^{[1
]}

Cingolani, R ^{[1
]}

机构：

[1] Univ Lecce, Natl Nanotechnol Lab, INFM, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy

来源：

SYNTHETIC METALS | 2004年 / 143卷 / 03期

关键词：

optical gain; organic thin film; infrared luminescence;

D O I：

10.1016/j.synthmet.2003.12.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Although optical gain and lasing has been observed in the solid state for numerous organic molecules emitting at visible wavelengths, this is not the case in the infrared. Here, we show line-narrowing due to amplified spontaneous emission in the near infrared (960 nm) from a solid state organic thin film, made by spin-coating, a blend of the laser dye IR-140 and the polymer poly(methylmethacrylate). Line-narrowing becomes evident for excitation densities above 4.8 mJ cm(-2), and is tunable between 920 and 970 nm, with a maximum gain value of 6.6 cm. Preliminary results using other near infrared-emitting dyes suggest that this may be a general approach. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：305 / 307

页数：3

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