Third-Order Nonlinear Optical Behavior of Novel Polythiophene Derivatives Functionalized with Disperse Red 19 Chromophore

Figure 6

THG Maker-Fringe pattern from thin films (433 nm) of copolymers P1 and P2 deposited in a 1 mm thick glass substrate. As reference, the figure includes the THG signal from a subtrate without a film deposited on it.