
TY  - JOUR
A1  - Williams, GRJ 
T1  - Nonlinear Susceptabilities of Conjugated Organic Systems: Fused-ring Oligomers
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1991
VL  - 44
IS  - 3
SP  - 299
EP  - 304
KW  - 
UR  - https://doi.org/10.1071/PH910299 
N2  - The finite-field modified neglect of diatomic overlap (MNDO) molecular orbital technique has been used to calculate the second hyperpolarisability (the molel:ular counterpart to the macroscopic nonlinear susceptability tensor X3) for selected fused-ring oligomers. The fusedring segments are the active electro-optic units in ladder polymers and rigid-rod/flexible-chain copolymers that are under current investigation as polymeric materials with applications in ultrafast optoelectronic devices. 
ER  -

