Nonlinear interactions of excitons in conducting polymers: Femtosecond transient absorption and holography studies

D. W. McBranch, B. Kraabel, Victor I Klimov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The nonlinear optical properties of luminescent conducting polymers from the poly(para-phenylene vinylene) (PPV) are investigated using femtosecond transient absorption (fs TA) and holography to address: the primary photoexcitations and their interacting behavior at high excitation densities; and the signatures of biexcitons and their ability to be harnessed for ultrafast holographic signal processing. The solutions and films of the PPV oligomer MEH-DSB, and several soluble PPV derivatives, are measured. The fs TA spectra of MEH-DBA show a positive band due to stimulated emission around 2.4 eV and a photoinduced absorption (PA) extending from 1.3-2.0 eV.

Original languageEnglish
Title of host publicationIEEE Nonlinear Optics: Materials, Fundamentals and Applications - Conference Proceedings
PublisherIEEE
Pages51-53
Number of pages3
Publication statusPublished - 1998
EventProceedings of the 1998 IEEE Nonlinear Optics Topical Meeting - Princeville, HI, USA
Duration: Aug 10 1998Aug 14 1998

Other

OtherProceedings of the 1998 IEEE Nonlinear Optics Topical Meeting
CityPrinceville, HI, USA
Period8/10/988/14/98

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    McBranch, D. W., Kraabel, B., & Klimov, V. I. (1998). Nonlinear interactions of excitons in conducting polymers: Femtosecond transient absorption and holography studies. In IEEE Nonlinear Optics: Materials, Fundamentals and Applications - Conference Proceedings (pp. 51-53). IEEE.