A polythiophene microcavity laser

被引：111

作者：

Granlund, T ^{[1
]}

Theander, M

Berggren, M

Andersson, M

Ruzeckas, A

Sundstrom, V

Bjork, G

Granstrom, M

Inganas, O

机构：

[1] Linkoping Univ, Dept Phys, IFM, S-58183 Linkoping, Sweden

[2] Chalmers Univ Technol, Dept Polymer Technol, S-41296 Gothenburg, Sweden

[3] Univ Lund, Ctr Chem, S-22100 Lund, Sweden

[4] KTH, Lab Photon & Microwave Engn, S-16440 Kista, Sweden

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 288卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(98)00320-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report photopumped lasing in a microcavity device with a polythiophene layer as the emitter. These microcavity devices are built by joining two polymer coated dielectric mirrors at elevated temperature. When photopumping the film, a lasing threshold is observed at 120 nJ/cm(2). Comparative studies with fast pump-probe spectroscopy of thin polythiophene films and the same polymer in photopumped lasing studies, indicate that the gain coefficient is 80 +/- 20 cm(-1), and that the exciton concentration is 2 X 10(17) cm(-3) at the lasing transition, well below the exciton-exciton recombination level. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：879 / 884

页数：6

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