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Third harmonic generation in perylene derivatives

  • S. Schrader
  • K. H. Koch
  • A. Mathy
  • C. Bubeck
  • K. Müllen
  • G. Wegner
Conference paper
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 85)

Abstract

The nonlinear optical properties of a series of tetratert.-butyl-perylene derivatives of different molecular sizes were investigated by means of third harmonic generation. — The nonlinear susceptibilities χ (3)(−3ω,ω,ω,ω) of the smaller molecules (biperylenyle, terrylene, quaterrylene) as measured by excitation with a Nd;YaG-laser (wavelength=1064 nm) are in the range of 10−12 esu and are one order of magnitude lower than that of the pentarylene. Its χ (3)-value reaches a magnitude greater than 5×10−11 esu which is comparable to the χ (3) of linear conjugated polymers. The nonlinear susceptibility of the investigated perylene derivatives increases with the interrelated quantities of the reciprocal of the S 0S 1-excitation energy, the wavelength of the absorption maximum, and the length of the molecule. Resonance enhancement of the nonlinear susceptibility is observed for the biperylenyle due to a mutual two-photon resonance and for the pentarylene due to both one-photon and three-photon resonance.

Key words

Third harmonic generation nonlinear optical properties perylene derivatives 

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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1991

Authors and Affiliations

  • S. Schrader
    • 1
    • 1
  • K. H. Koch
    • 1
  • A. Mathy
    • 1
  • C. Bubeck
    • 1
  • K. Müllen
    • 1
  • G. Wegner
    • 2
  1. 1.Max-Planck-Institut für PolymerforschungMainzFRG
  2. 2.Zentralinstitut für Organische ChemieBereich Makromolekulare VerbindungenBerlinFRG

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