Whispering-gallery-mode microring laser using a conjugated polymer
作者:
Y. Kawabe,
Ch. Spiegelberg,
A. Schu¨lzgen,
M. F. Nabor,
B. Kippelen,
E. A. Mash,
P. M. Allemand,
M. Kuwata-Gonokami,
K. Takeda,
N. Peyghambarian,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 72,
issue 2
页码: 141-143
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.120668
出版商: AIP
数据来源: AIP
摘要:
We observed laser emission in whispering gallery modes using a microring composed of a semiconducting polymer poly[2,5-bis-(2′-ethylhexyloxy)-p-phenylenevinylene coated on an etched fiber under transient and quasisteady-state pumping conditions. The threshold for laser oscillation was 1mJ/cm2(0.1MW/cm2)and 30&mgr;J/cm2(300MW/cm2)for nanosecond and femtosecond excitation, respectively. The laser output showed superlinear dependence on the excitation energy above the threshold. The demonstration of lasing under quasisteady-state pumping shows the possibility to develop electrically pumped polymer lasers. ©1998 American Institute of Physics.
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