CUED Publications database

Measuring the nonlinear refractive index of graphene using the optical Kerr effect method

Dremetsika, E and Dlubak, B and Gorza, SP and Ciret, C and Martin, MB and Hofmann, S and Seneor, P and Dolfi, D and Massar, S and Emplit, P and Kockaert, P (2016) Measuring the nonlinear refractive index of graphene using the optical Kerr effect method. Optics Letters, 41. pp. 3281-3284.

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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.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:29
Last Modified: 16 Nov 2017 02:16
DOI: