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

Robert A Norwood, J. R. Sounik

Research output: Contribution to journalArticle

79 Citations (Scopus)

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 - 1992
Externally publishedYes

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porphyrins
polymers
thin films
four-wave mixing
copolymers
recovery
absorption spectra
optical properties
silicon
pulses
excitation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Third-order nonlinear optical response in polymer thin films incorporating porphyrin derivatives. / Norwood, Robert A; Sounik, J. R.

In: Applied Physics Letters, Vol. 60, No. 3, 1992, p. 295-297.

Research output: Contribution to journalArticle

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