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Measuring the nonlinear refractive index of graphene using the optical Kerr effect method
Authors
,
,
+11 more
C Ciret
B Dlubak
D Dolfi
E Dremetsika
P Emplit
SP Gorza
S Hofmann
P Kockaert
MB Martin
S Massar
P Seneor
Publication date
15 June 2016
Publisher
Optics Letters
Doi
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on
arXiv
Abstract
© 2016 Optical Society of America.By means of the ultrafast optical Kerr effect method coupled to optical heterodyne detection (OHD-OKE), we characterize the third-order nonlinear response of graphene and compare it to experimental values obtained by the Z-scan method on the same samples. From these measurements, we estimate a negative nonlinear refractive index for monolayer graphene, n2 = -1.1 × 10-13 m2/W. This is in contradiction to previously reported values, which leads us to compare our experimental measurements obtained by the OHD-OKE and the Z-scan method with theoretical and experimental values found in the literature and to discuss the discrepancies, taking into account parameters such as doping
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Last time updated on 05/06/2019