A new class of third-order nonlinear optical materials: laser pulse-duration dependant saturable absorption and nonlinear refraction in platinum(II) diimine-dithiolate complexes.

Anna PintusCristian PilloniGabriele PippiaEnrico PoddaMaria Carla Aragoni Vito LippolisPanagiotis AloukosDionysios PotamianosNikolaos ChazapisStelios CourisGeorge C AnyfantisAlexandra M Z Slawin J Derek Woollins Massimiliano Arca

Published in: Dalton transactions (Cambridge, England : 2003) (2023)

The third-order nonlinear optical (NLO) properties of a series of platinum diimine-dithiolate complexes [Pt(N^N)(S^S)] were investigated by means of Z -scan measurements, revealing second hyperpolarizability values up to 10 -29 esu, saturable absorption properties, and nonlinear refractive behaviour, which were rationalized also by means of DFT calculations.

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