Giant optical gain in conjugated polymers studied by femtosecond spectroscopy

Ch Spiegelberg, A. Schulzgen, M. M. Morrell, P. M. Allemand, B. Kippelen, N. Peyghambarian

Research output: Contribution to journalConference articlepeer-review


Advancement in the development of electroluminescent devices utilizes conjugated polymers as lasing materials. A polymer with stimulated emission and large optical gain was investigated. The photoluminescence was measured using a streak camera after passing through a monochromator. Pump-probe experiments with femtosecond pulses was conducted to study the dynamics of the absorption changes and the optical gain. The spectral shape of the time-integrated photoluminescence as a function of excitation intensity is presented. Doubling the excitation intensity results in an increase of the integrated emission by more than two orders of magnitude.

Original languageEnglish (US)
Pages (from-to)459-460
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
StatePublished - 1997
EventProceedings of the 1997 Conference on Lasers and Electro-Optics, CLEO - Baltimore, MD, USA
Duration: May 18 1997May 23 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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