Open AccessStimulated emission properties of an organic salt-doped polymer film in microcavity
Author(s) -
Xu Deng
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.2781
Subject(s) - materials science , lasing threshold , distributed bragg reflector , optoelectronics , gain switching , doping , laser , active laser medium , amplified spontaneous emission , optics , wavelength , dye laser , nanosecond , stimulated emission , laser power scaling , physics
An organic vertical cavity surface emitting laser has been fabricated, using a Forster energy transfer system of organic pyridium salt dye ASPI and Alq3 doped in PMMA film as the gain medium, which was sandwiched between a high-reflectance distributed Bragg reflector and a silver reflector. The stimulated emission properties were investigated by nanosecond-pulsed laser pumping. The lasing phenomenon was observed with a full width at half maximum of 243 nm at the lasing wavelength of 600 nm, and the threshold energy for lasing was estimated to be about 8?J per pulse.