TY - JOUR
AU - Junji Watanabe, Junji Watanabe
AB - The first-order hyperpolarizabilities βs were  determined by hyper-Rayleigh scattering in two homologous  series of two-dimensional bent molecules with alkyl and alkoxy end chains.  It was found that the β values of alkyl and alkoxy compounds are  nearly the same and increase slightly with increasing chain length  from ca. 10 ×10-30  esu to ca. 40 ×10-30  esu.  Using the β value determined in the present study  and the dihedral angle of the bent molecule,  the tensor elements of β were also determined.  The second-order nonlinear susceptibilities d33 and d31  were estimated and compared with an experimental result obtained by a  bulk second-harmonic  generation (SHG) measurement by Macdonald et al.  [Phys. Rev. Lett. 81 (1998) 4408]. This comparison  leads to a conclusion that the high SHG activity in bent molecular  liquid crystal systems is attributed to highly ordered molecules  possessing high hyperpolarizability  in smectic layers.  
TI - Evaluation of the First-Order Hyperpolarizability Tensor of Bent Molecules   by Means of Hyper-Rayleigh Scattering Method
JF - Japanese Journal of Applied Physics
DO - 10.1143/JJAP.38.3526
DA - 1999-06-01
UR - https://www.deepdyve.com/lp/iop-publishing/evaluation-of-the-first-order-hyperpolarizability-tensor-of-bent-0Cbb8M0sMy
SP - 3526
VL - 38
IS - 6R
DP - DeepDyve
ER -