Amplified spontaneous emission and optical gain spectra from stilbenoid and phenylene vinylene derivative model compounds
Citation:
Kretsch, KP, Belton, C, Lipson, S, Blau, WJ, Henari, FZ, Rost, H, Pfeiffer, S, Teuschel, A, Tillmann, H, Horhold, HH, Amplified spontaneous emission and optical gain spectra from stilbenoid and phenylene vinylene derivative model compounds, Journal of Applied Physics, 86, 11, 1999, 6155-6160Download Item:
Abstract:
We report single-pass optical gain measurement in polystyrene!
waveguides doped with stilbenoid
and phenylene vinylene derivative model compounds under picosecond excitation. Using a
wavelength dependent model of amplified spontaneous emission, we produce optical gain spectra
for these materials. Net optical gains of
g
5
15? 20 cm
2
1
are deduced. The spectra also exhibit
features consistent with excited state absorption and fluorescence depletion via stimulated emission.
A figure of merit describing the potential of a material for use as a laser medium is presented and
comparisons with other recent publications are made. This comparison indicates that organic
materials can compete with inorganic semiconductors for optically pumped applications.
Author's Homepage:
http://people.tcd.ie/wblauDescription:
PUBLISHED
Author: BLAU, WERNER
Type of material:
Journal ArticleCollections
Series/Report no:
Journal of Applied Physics;86;
11;
Availability:
Full text availableMetadata
Show full item recordLicences: