Ultrafast and short-pulse excitation of nonlinear optical absorption in Graphene oxide and reduced Graphene oxide

Sreekanth, P; Philip, Reji

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8489

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DC Field	Value	Language
dc.contributor.author	Sreekanth, P	-
dc.contributor.author	Philip, Reji	-
dc.date.accessioned	2025-08-28T04:34:14Z	-
dc.date.available	2025-08-28T04:34:14Z	-
dc.date.issued	2014-12	-
dc.identifier.citation	National Laser Symposium, NLS-23, S.V.University, Tirupati. 3-6 December, 2014	en_US
dc.identifier.isbn	9788190332156	-
dc.identifier.uri	http://hdl.handle.net/2289/8489	-
dc.description	Open Access.	en_US
dc.description.abstract	We investigate the effect of excitation laser pulsewidth (50 ns, 300 ps and 100 fs pulses) on the nonlinear absorption properties of graphene oxide (GO) and reduced graphene oxide (rGO) in the linear absorption band edge, using the excitation wavelength of 800 nm. GO is synthesized by the modified Hummers method, and rGO is obtained by hydrothermal reduction. Reverse Saturable Absorption (RSA) prevails for all excitation pulsewidths in GO, whereas in rGO RSA is prominent in the ns and fs regimes while Saturable Absorption (SA) dominates the ps regime. Due to its increased crystallinity and extended π conjugation, rGO exhibits excellent optical limiting for ns and fs excitations in comparison to GO.	en_US
dc.language.iso	en	en_US
dc.publisher	National Laser Symposium	en_US
dc.relation.uri	http://arxiv.org/abs/	en_US
dc.relation.uri	http://dx.doi.org/	en_US
dc.rights	2014, NLS-23	en_US
dc.title	Ultrafast and short-pulse excitation of nonlinear optical absorption in Graphene oxide and reduced Graphene oxide	en_US
dc.type	Article	en_US
Appears in Collections:	Research Papers (LAMP)

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