Third-order nonlinear optical response in polymer thin films incorporating porphyrin derivatives

R. A. Norwood, J. R. Sounik

Research output: Contribution to journalArticle

79 Scopus citations

Abstract

The third-order nonlinear optical properties of several porphyrin derivatives incorporated in thin films of polymethylmethacrylate have been measured by degenerate four-wave mixing at 598 nm with 1 ps pulses. Both the magnitude and dynamics of the nonlinear response are measured, with each system exhibiting both a subpicosecond response and a more slowly decaying response (10 ps-1 ns) owing to excited-state population. A copolymer of silicon phthalocyanine and methyl methacrylate exhibits a fast recovery time (15 ps) and no observable long-time (∼ns) component of its nonlinear response, as well as an absorption band twice as narrow as that of guest/host samples of the same material.

Original languageEnglish (US)
Pages (from-to)295-297
Number of pages3
JournalApplied Physics Letters
Volume60
Issue number3
DOIs
StatePublished - Dec 1 1992
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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