In:
Journal of Nonlinear Optical Physics & Materials, World Scientific Pub Co Pte Ltd, Vol. 12, No. 02 ( 2003-06), p. 235-246
Kurzfassung:
Time-resolved DFWM experiments were performed with 150 fs pulses at 800 nm in chloroform solutions of π-conjugated molecules: p-bis(o-methylstyryl)-benzene (Bis-MSB) and a newly synthesized derivative of distyrylbenzene: an oligomer of p-phenylenevinylene substituted in the para position with electron donating alkyleneoxy group bearing the methacrylic group and an electron accepting 2-ethylhexylsulfonyl group (MTPV-SOHE monomer). The asymmetric substitution causes a red shift (24 nm) of the absorption maximum and enhancement of third-order optical susceptibility. The second hyperpolarizability derived from a quadratic dependence of the phase matched DFWM signal on concentration of MTPV-SOHE was about 6 times bigger than that in Bis-MSB.
Materialart:
Online-Ressource
ISSN:
0218-8635
,
1793-6624
DOI:
10.1142/S0218863503001365
Sprache:
Englisch
Verlag:
World Scientific Pub Co Pte Ltd
Publikationsdatum:
2003
