Author/Authors :
Kumar، نويسنده , , Sunil and Kamaraju، نويسنده , , N. and Vasu، نويسنده , , K.S. and Nag، نويسنده , , Angshuman and Sood، نويسنده , , A.K. Prasada Rao، نويسنده , , C.N.R.، نويسنده ,
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-à-vis the Dirac linear band structure of graphene.
