Third-order susceptibilities of asymmetric pentaazadentate porphyrin-like metal complexes

Academic Article

Abstract

  • The third-order nonlinear optical properties of a series of asymmetric pentaazadentate porphyrin-like metal complexes ([(R-APPC)M]Cl ) with different conjugated R groups and metal centers have been investigated by degenerate four wave mixing experiments using 40 ps laser pulses at 532 nm. The molecular second-order hyperpolarizabilities (γ) for these complexes range from 1.1X10 to 1.2X10 esu and depend strongly on both the nature of the metal and the R group. The y values of the [(R-APPC)Cd]Cl complexes are 2-7 times larger than those of PbPc(CP) and SiNc, two of the most promising nonlinear optical materials for optical limiting applications. Measurements of the individual components of the χ tensor indicate that the nonlinearity is predominantly electronic in origin when 40 ps laser pulses are used. © 1999 American Institute of Physics. n 4 -31 -30 (3)
  • Published In

    Digital Object Identifier (doi)

    Author List

  • Sun W; Byeon CC; Lawson CM; Gray GM; Wang D
  • Start Page

  • 3254
  • End Page

  • 3256
  • Volume

  • 74
  • Issue

  • 22