Enhanced optical limiting in polystyrene–ZnO nanotop composite films
作者： P. C. Haripadmam , Honey John , Reji Philip , Pramod Gopinath
DOI: 10.1364/OL.39.000474
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摘要: In this work we investigate the optical limiting property of polystyrene–zinc-oxide (ZnO) nanotop composite films, using an open aperture Z-scan technique. The nanocomposites are prepared for different loading concentrations ZnO and fabricated spin dip coating techniques. On exposing films to a pulsed nanosecond laser at 532 nm, nonlinear absorption (NLA) coefficient is found be greater spin-coated compared dip-coated films. measured NLA enhanced with increase in concentration monomer both spin-
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