Optical characterization of ZnO nanoplates embedded in polymeric matrices for optical limiting applications

We report on the optical characterization, including linear and non linear, of ZnO nanoplates embedded in PVA. Nonlinear optical characterization of these films was studied by the Z-scan technique using an Nd:YAG laser (532nm, 7ns, 10Hz).The studies show that the material is highly nonlinear, have d...

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Bibliographic Details
Published in:Optics and laser technology 2013-11, Vol.52, p.37-42
Main Authors: Thankappan, Aparna, S., Divya, Thomas, Sheenu, Nampoori, V.P.N.
Format: Article
Language:English
Subjects:
Constraining
Lasers
Nanostructure
Nonlinearity
Optical properties
Pumps
Reverse saturable absorption
SEM
Semiconductors
Zinc oxide
ZnO
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Summary:We report on the optical characterization, including linear and non linear, of ZnO nanoplates embedded in PVA. Nonlinear optical characterization of these films was studied by the Z-scan technique using an Nd:YAG laser (532nm, 7ns, 10Hz).The studies show that the material is highly nonlinear, have desirable lower optical liming threshold of 46.86MW/cm2 at pump power of 436MW/cm2 and with negative refractive index. Therefore, these films with immobilized semiconductor nanoplates appear to be attractive candidates for optical limiting applications. •We prepared ZnO nanoplates.•Characterizations were done, including SEM and XRD.•Linear and non linear optical characterization studies were also performed.•Appreciable optical limiting threshold of 46.86MW/cm2 for high pump power of 436MW/cm2.
ISSN:0030-3992
1879-2545
DOI:10.1016/j.optlastec.2013.03.016