Efficient second harmonic generation from thin films of V-shaped benzo[b]thiophene based molecules

Abstract: We have designed an original approach for efficient Second
Harmonic Generation of tailored V-shape benzo[b]thiophene molecular
systems enabling versatile and flexible one-step, dry and technologically
friendly thin film processing. The designed moieties show ?
(2)
values at least
as high as the reference LiNbO 3 single crystal, without poling processing
and matching the constrains of integrated optical configuration for nonlinear
optical devices. This may open the way to a new class of organic materials
exploitable for photonic applications.