268 citations · 806 across the 14 of their papers we have counts for
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Ultrafast photothermoelectric effect in Dirac semimetallic Cd3As2 revealed by terahertz emission
Wei Lu, Zipu Fan, Yunkun Yang +11
The thermoelectric effects of topological semimetals have attracted tremendous research interest because many topological semimetals are excellent thermoelectric materials and ther…
Third order optical nonlinearity of three dimensional massless Dirac fermions
J. L. Cheng, J. E. Sipe, S. W. Wu
We present analytic expressions for the electronic contributions to the linear conductivity and the third order optical conductivity o…
Intraband divergences in third order optical response of 2D systems
J. L. Cheng, J. E. Sipe, S. W. Wu +1
The existence of large nonlinear optical coefficients is one of the preconditions for using nonlinear optical materials in nonlinear optical devices. For a crystal, such large coef…
Second order optical nonlinearity of graphene due to electric quadrupole and magnetic dipole effects
J. L. Cheng, N. Vermeulen, J. E. Sipe
We present a practical scheme to separate the contributions of the electric quadrupole-like and the magnetic dipole-like effects to the forbidden second order optical nonlinear res…
Numerical study of the optical nonlinearity of doped and gapped graphene: From weak to strong field excitation
J. L. Cheng, N. Vermeulen, J. E. Sipe
Numerically solving the semiconductor Bloch equations within a phenomenological relaxation time approximation, we extract both the linear and nonlinear optical conductivities of do…
Spin relaxation in -type GaAs quantum wells from a full microscopic approach
J. Zhou, J. L. Cheng, M. W. Wu
We perform a full microscopic investigation on the spin relaxation in -type (001) GaAs quantum wells with AlGaAs barrier due to the D'yakonov-perel' mechanism fr…