K.N. Tu
Materials Science and Engineering: A
The third-order nonlinear optical (NLO) susceptibility χ(3)(-3ω;ω,ω,ω) have been measured on spin-coated films of three kinds of polysilanes (PS's) with various backbone conformations, in a wide range of fundamental wavelength, by means of third-harmonic generation (THG) measurement. The experimental results show that their quasi-one-dimensional (Q1D) exciton level structures and their optical nonlinearity systematically change, with their backbone conformation changes. As compared with the theoretical calculation by 1D exciton model, the experimental feature indicates that the on-site electron correlation takes important roles in Q1D exciton states of PS's. © 1995.
K.N. Tu
Materials Science and Engineering: A
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
Imran Nasim, Melanie Weber
SCML 2024
A.B. McLean, R.H. Williams
Journal of Physics C: Solid State Physics