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Photon-assisted charge transport through a double barrier laser structure, separated by a region assisted by a magnetic field, is studied. Employing Floquet theory and matrix formalism, the transmission probabilities for the central band…

Mesoscale and Nanoscale Physics · Physics 2024-10-18 Rachid El Aitouni , Miloud Mekkaoui , Abdelhadi Bahaoui , Ahmed Jellal

We study how electrons move across a graphene sheet when it encounters two magnetic barriers with a region in between that is continuously driven by laser light. Rather than acting as a static obstacle, this illuminated middle section…

Mesoscale and Nanoscale Physics · Physics 2025-12-04 Rachid El Aitouni , Miloud Mekkaoui , Pablo Díaz , David Laroze , Ahmed Jellal

We study how fermions in molybdenum disulfide MoS$_2$ interact with a laser field and a static potential barrier, focusing on the transmission probability. Our aim is to understand and control photon-assisted quantum transport in this…

Mesoscale and Nanoscale Physics · Physics 2026-01-09 Rachid El Aitouni , Aotmane En Naciri , Clarence Cortes , David Laroze , Ahmed Jellal

The anisotropy in resonant tunneling transport through an electrostatic barrier in mono layer black phosphorus either in presence or in absence of an oscillating potential is studied. Non-perturbative Floquet theory is applied to solve the…

Mesoscale and Nanoscale Physics · Physics 2020-12-09 R. Biswas , C. Sinha

Electron transport in graphene under a laser-modulated barrier is studied in the presence of an energy gap, a scalar potential, and a uniaxial zigzag strain. The transfer-matrix approach is used with the boundary conditions to derive the…

Mesoscale and Nanoscale Physics · Physics 2026-04-22 Hasna Chnafa , Clarence Cortes , David Laroze , Ahmed Jellal

We study the tunneling effect of Dirac fermions in a monolayer WSe$_2$ subjected to a static electrostatic barrier and irradiated by a linearly polarized laser field. Within the Floquet formalism, the time-periodic driving is incorporated…

Mesoscale and Nanoscale Physics · Physics 2026-05-13 Rachid El Aitouni , Mohammed El Azar , Clarence Cortes , Pablo Díaz , David Laroze , Ahmed Jellal

We investigate theoretically the transmission of electrons through a pair of {\delta}- function magnetic barriers in graphene in presence of external monochromatic, linearly polarised and CW laser field. The transmission coefficients are…

Mesoscale and Nanoscale Physics · Physics 2016-07-20 R. Biswas , C. Sinha

We study the tunneling behavior of Dirac fermions in graphene subjected to a double barrier potential profile created by spatially overlapping laser fields. By modulating the graphene sheet with an oscillating structure formed from two…

Mesoscale and Nanoscale Physics · Physics 2024-05-28 Rachid El Aitouni , Miloud Mekkaoui , Ahmed Jellal

We study the transport properties of Dirac fermions through gapped graphene through a magnetic barrier irradiated by a laser field oscillating in time. We use Floquet theory and the solution of Weber's differential equation to determine the…

Mesoscale and Nanoscale Physics · Physics 2023-12-27 Rachid El Aitouni , Miloud Mekkaoui , Ahmed Jellal , Michael Schreiber

Characterizing and controlling matter driven far from equilibrium represents a major challenge for science and technology. Here we develop a theory for the optical absorption of electronic materials driven far from equilibrium by resonant…

Mesoscale and Nanoscale Physics · Physics 2018-12-19 Bing Gu , Ignacio Franco

The kinetic transport of electrons through graphene magnetic barriers is studied theoretically in presence of an external time harmonic scalar potential. The transmission coefficients are calculated in the framework of the non-perturbative…

Mesoscale and Nanoscale Physics · Physics 2017-04-26 R. Biswas , S. Maiti , C. Sinha

We study the influence of laser radiation on the electron transport through a molecular wire weakly coupled to two leads. In the absence of a generalized parity symmetry, the molecule rectifies the laser induced current, resulting in…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Jörg Lehmann , Sigmund Kohler , Peter Hänggi , Abraham Nitzan

Graphene irradiated by a circularly polarized laser has been predicted to be a Floquet topological insulator showing a laser-induced quantum Hall effect. A circularly polarized laser also drives the system out of equilibrium resulting in…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Hossein Dehghani , Takashi Oka , Aditi Mitra

Photon-assisted charge transport through a double barrier structure under a time periodic field in graphene is studied. Within the framework of the Floquet formalism and using the transfer matrix method, the transmission probabilities for…

Mesoscale and Nanoscale Physics · Physics 2015-03-12 H. P. Ojeda-Collado , C. Rodríguez-Castellanos

We consider a monoenergetic beam of moving charged particles interacting with two separated oscillating electric fields. Time-periodic linear potential is assumed to model the light-particle interaction using a nonrelativistic, quantum…

Quantum Physics · Physics 2018-07-02 Lóránt Zs. Szabó , Mihály G. Benedict , Péter Földi

We experimentally demonstrate optical control of filamentation that occurs during propagation of intense, ultrashort laser pulses through crystals like barium fluoride and sapphire. Control is exercised by rotating the plane of polarization…

Plasma Physics · Physics 2007-05-23 A. K. Dharmadhikari , K. Alti , J. A. Dharmadhikari , D. Mathur

We study the effect of the energy gap on the transmission of fermions in graphene exposed to linearly polarized light as a laser barrier. We determine the energy spectrum, apply boundary conditions at interfaces, and use the transfer matrix…

Mesoscale and Nanoscale Physics · Physics 2023-12-27 Hasna Chnafa , Miloud Mekkaoui , Ahmed Jellal , Abdelhadi Bahaoui

Laser induced line narrowing effect, discovered more than thirty years ago, can also be applied to recent studies in high resolution spectroscopy based on electromagnetically induced transparency. In this paper we first present a general…

Atomic Physics · Physics 2009-11-07 Hwang Lee , Yuri Rostovtsev , Chris J. Bednar , Ali Javan

This study explores the impact of a strong perpendicular laser field on the electronic structure and optical conductivity of bilayer graphene. Employing the Floquet-Bloch theorem and a four-band Hamiltonian model, we calculate the optical…

Mesoscale and Nanoscale Physics · Physics 2024-03-27 S. Sajad Dabiri , Hosein Cheraghchi , Fatemeh Adinehvand , Reza Asgari

We explore the Floquet band-structure and electronic transport in laser-illuminated bilayer graphene. By using a bias voltage perpendicular to the graphene bilayer we show how to get one-way charge and valley transport among two unbiased…

Mesoscale and Nanoscale Physics · Physics 2017-12-13 Virginia Dal Lago , Eric Suárez Morell , Luis E. F. Foa Torres
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