Title:	Optical Limiting Properties of the Natural Dye Extract from Alternanthera brasiliana Leaves
Authors:	Haripadamam, P.C. Beryl, C. Philip, Reji
Issue Date:	16-Apr-2022
Publisher:	Springer
Citation:	Journal of Electronic Materials, 2022, p1-8
Abstract:	Optoelectronics is a research area with swift advancements, and it is accelerating with the development of a diverse range of materials. In this regard, the present article intends to investigate the extraction, film fabrication and third-order nonlinear optical studies of a natural dye extracted from Alternanthera brasiliana (A. brasiliana) leaves. The dye prepared by solvent extraction shows good linear absorption and an intense emission at 673 nm. The open-aperture Z-scan technique, employing 532-nm and 5-nm laser pulses, is used to investigate the nonlinear optical property of the dye in solution as well as in film form. Both the dye solution and dye-doped PVA films exhibit a reverse saturable absorption behavior, which leads to efficient optical limiting. This nonlinear absorption is attributed to strong excited state absorption occurring in the dye at the excitation wavelength. These low-cost, flexible and eco-friendly films are promising candidates for the fabrication of efficient optical devices for photonic applications.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/7928
ISSN:	0361-5235
Alternative Location:	https://doi.org/10.1007/s11664-022-09523-9
Copyright:	2022 Springer
Appears in Collections:	Research Papers (SCM)

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