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Graphene analogue BCN: Femtosecond nonlinear optical susceptibility and hot carrier dynamics

Kumar, Sunil and Kamaraju, N and Vasu, KS and Nag, Angshuman and Sood, AK and Rao, CNR (2010) Graphene analogue BCN: Femtosecond nonlinear optical susceptibility and hot carrier dynamics. In: Chemical Physics Letters, 499 (1-3). pp. 152-157.

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Official URL: http://dx.doi.org/10.1016/j.cplett.2010.09.030

Abstract

Third-order nonlinear absorption and refraction coefficients of a few-layer boron carbon nitride (BCN) and reduced graphene oxide (RGO) suspensions have been measured at 3.2 eV in the femtosecond regime. Optical limiting behavior is exhibited by BCN as compared to saturable absorption in RGO. Nondegenerate time-resolved differential transmissions from BCN and RGO show different relaxation times. These differences in the optical nonlinearity and carrier dynamics are discussed in the light of semiconducting electronic band structure of BCN vis-a-vis the Dirac linear band structure of graphene. (C) 2010 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Others
Division of Physical & Mathematical Sciences > Physics
Date Deposited: 27 Oct 2010 06:04
Last Modified: 27 Oct 2010 06:04
URI: http://eprints.iisc.ernet.in/id/eprint/33444

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