Anthracene derivatives as broadband nonlinear optical materials: nonlinear absorption and excited-state dynamics analysis

Long-lived platinum(II) diimine complexes with broadband excited-state absorption: efficient nonlinear absorbing materials.

Platinum(II) diimine complexes with naphthalimide substituted fluorenylacetylide ligands are synthesized and characterized. The complexes exhibit long-lived (3)ILCT or (3)ILCT/(3)MLCT/(3)LLCT excited states (τ = ~20-30 μs) and broadband triplet transient absorption in the visible-NIR region. Nonlinear transmission experiments at 532 nm demonstrate that these complexes are efficient nonlinear ab...

Push-Pull Porphyrins as Nonlinear Optical Materials

Due to their potential applications for optical communications, data storage, and electrooptical signal processing, molecules with nonlinear optical (NLO) properties have been extensively investigated.’ As part of our interest in porphyrins and metalloporphyrins as photoresponsive2 and field-responsive material^,^ we have synthesized a series of “push-pull” porphyrins containing both donor and ...

Nonlinear optical materials.

The current state of materials development in nonlinear optics is summarized, and the promise of these materials is critically evaluated. Properties and important materials constants of current commercial materials and of new, promising, inorganic and organic molecular and polymeric materials with potential in second- and third-order nonlinear optical applications are presented.

Nonlinear optical propagation in a tandem structure comprising nonlinear absorption and scattering materials

Nonlinear optical absorption and dynamics in quantum wells

We present measurements of differential transmission and four-wave mixing in GaAs quantum well structures at 1.8 K near the inhomogeneously broadened lowest heavy-hole (hhl) exciton resonance using narrow band cw excitation. The data show an increase in absorption and an excitation lifetime of order l-10 ps outside the spectral hole produced by the pump. The long lifetime and the experimentally...