Giant nonlinear optical response of interacting one-dimensional Frenkel excitons in molecular aggregates

Authors
Markov, RV Plekhanov, AI Shelkovnikov, VV Knoester, J
Citation
Rv. Markov et al., Giant nonlinear optical response of interacting one-dimensional Frenkel excitons in molecular aggregates, PHYS ST S-B, 221(1), 2000, pp. 529-533
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI B-BASIC RESEARCH
ISSN journal
03701972 → ACNP
Volume
221
Issue
1
Year of publication
2000
Pages
529 - 533
Database
ISI
SICI code
0370-1972(200009)221:1<529:GNOROI>2.0.ZU;2-M
Abstract
Experimental results for the nonlinear optical properties of thin films of molecular J-aggregates of substituted pseudoisocyanine (PIC) are reported. These molecular aggregates were found to possess a giant third-order optica l nonlinearity (\chi((3))\ approximate to 10(-5) esu). Thin films of J-aggr egates of PIC iodide with several different N-alkyl substituents were obtai ned to study the effect of disorder on the nonlinear optical properties. Th e spectral features of the nonlinear optical susceptibility are analyzed wi thin a model that includes exciton-exciton interactions.