In:
Advanced Materials, Wiley, Vol. 9, No. 7 ( 1997-01), p. 547-551
Abstract:
Lasing in conjugated polymer thin films? Not so , according to the results presented here. As previously reported, for films of a variety of conjugated polymers on glass substrates the emission spectrum narrows with increasing optical‐pump intensity when pulsed excitation is used. A detailed study is described here of this spectral narrowing phenomenon using films of poly( p ‐phenylenevinylene) (PPV). Evidence is presented that weakens the case for lasing being the mechanism involved and supports and supports amplification of spontaneous emission by waveguiding.
Type of Medium:
Online Resource
ISSN:
0935-9648
,
1521-4095
DOI:
10.1002/adma.19970090705
Language:
English
Publisher:
Wiley
Publication Date:
1997
detail.hit.zdb_id:
1474949-X
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