期刊论文

Ding, Chunling

英文

EUROPEAN PHYSICAL JOURNAL D

1434-6060

2015

69

11

263-null

10.1140/epjd/e2015-60233-2

National Natural Science Foundation (NNSF) of ChinaNational Natural Science Foundation of China (NSFC) [11447107, 11404250, 11574104, 11505131, U1504111]; National Basic Research Program of ChinaNational Basic Research Program of China [2012CB922103]; Doctoral Foundation of the Ministry of Education of ChinaMinistry of Education, China [20134103120005]

本校为其他机构

The formation of infrared solitons in graphene under Raman excitation is investigated using density-matrix approach. We find that the unique band structure and selection rules for the optical transitions near the Dirac point can result in extremely strong optical nonlinearity. Theoretical investigations with the aid of slowly varying envelope approximation and perturbation theory clearly indicate the existence of bright and dark solitons in Landau-quantized graphene. Actually, the formation of spatial soliton in such a material is the consequence of the balance between nonlinear effects and th...