Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Kelardeh, Hamed Koochaki"'
Publikováno v:
Phys. Rev. Res. 4, L022014 (2022)
We identify and describe how intense short light pulses couple to massless Dirac fermions in two-dimensional systems. The ensuing excitation dynamics exhibits unusual scaling with the wavelength of the light due the linear dispersion of the band stru
Externí odkaz:
http://arxiv.org/abs/2109.04249
Autor:
Kelardeh, Hamed Koochaki
The emerging possibilities to steer and control electronic motion on subcycle time scales with strong electric fields enable studying the nonperturbative optical response and Bloch bands' topological properties, originated from Berry's trilogy: conne
Externí odkaz:
http://arxiv.org/abs/2101.03635
We investigate a valleytronic device based on graphene with charge separation at different sublattices and correspondingly at nonequivalent valleys. We characterize the maximality condition of valley polarization and investigate the parameters and co
Externí odkaz:
http://arxiv.org/abs/2012.14025
In this report, a novel methodology based on the static coherent states approach is introduced with the capability of calculating various strong-field laser-induced nonlinearities in full dimensional single-electron molecular systems; an emphasis is
Externí odkaz:
http://arxiv.org/abs/1910.03885
In this paper the generation of K{\alpha} X-ray produced by interaction of ultrashort laser pulses with metal targets has been studied numerically. Several targets were assumed to be irradiated by high intensity ultra-short laser pulses for the calcu
Externí odkaz:
http://arxiv.org/abs/1508.00592
We theoretically show that buckled two-dimensional graphene-like materials (silicene and germanene) subjected to a femtosecond strong optical pulse can be controlled by the optical field component normal to their plane. In such strong fields, these m
Externí odkaz:
http://arxiv.org/abs/1504.08300
We find theoretically energy spectrum of a graphene monolayer in a strong constant electric field using a tight-binding model. Within a single band, we find quantized equidistant energy levels (Wannier-Stark ladder), separated by the Bloch frequency.
Externí odkaz:
http://arxiv.org/abs/1405.1141
We study the interaction of graphene with ultrashort few femtosecond long optical pulse. For such a short pulse, the electron dynamics is coherent and is described within the tight-binding model of graphene. The interaction of optical pulse with grap
Externí odkaz:
http://arxiv.org/abs/1401.5786
Autor:
Kelardeh, Hamed Koochaki
Graphene interacting with a few-femtosecond intense optical pulse exhibits unique and rich electronic properties dramatically different from electron dynamics in insulators and metals. Here, we propose an attosecond strong optical field interferometr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b60fc765b5d5db945b9758b537403be4