Controlling Electron Dynamics with Carrier-Envelope Phases of a Laser Pulse

2019 ◽  
Vol 123 (22) ◽  
pp. 4702-4707 ◽  
Author(s):  
Diptesh Dey ◽  
Dhiman Ray ◽  
Ashwani K. Tiwari
Keyword(s):  
Laser Pulse ◽  
Electron Dynamics

Adjustments of dielectrics craters and their surfaces by ultrafast laser pulse train based on localized electron dynamics control

2013 ◽  
Vol 52 (17) ◽  
pp. 4035 ◽  
Author(s):  
Yanping Yuan ◽  
Lan Jiang ◽  
Xin Li ◽  
Cong Wang ◽  
Lei Yuan ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Pulse Train ◽  
Ultrafast Laser ◽  
Electron Dynamics ◽  
Ultrafast Laser Pulse

scholarly journals Simulation of the relativistic electron dynamics and acceleration in a linearly-chirped laser pulse

2014 ◽  
Vol 32 (4) ◽  
pp. 671-680 ◽  
Author(s):  
Najeh M. Jisrawi ◽  
Benjamin J. Galow ◽  
Yousef I. Salamin
Keyword(s):  
Laser Pulse ◽  
Plane Wave ◽  
Relativistic Electron ◽  
Numerical Solutions ◽  
Equations Of Motion ◽  
Electron Dynamics ◽  
Chirped Pulse ◽  
Theoretical Investigations ◽  
Laser Acceleration ◽  
Chirped Laser Pulse

AbstractTheoretical investigations are presented, and their results are discussed, of the laser acceleration of a single electron by a chirped pulse. Fields of the pulse are modeled by simple plane-wave oscillations and a cos2 envelope. The dynamics emerge from analytic and numerical solutions to the relativistic Lorentz-Newton equations of motion of the electron in the fields of the pulse. All simulations have been carried out by independent Mathematica and Python codes, with identical results. Configurations of acceleration from a position of rest as well as from injection, axially and sideways, at initial relativistic speeds are studied.

scholarly journals Photo-Induced Coupled Nuclear and Electron Dynamics in the Nucleobase Uracil

2021 ◽  
Vol 9 ◽  
Author(s):  
Lena Bäuml ◽  
Thomas Schnappinger ◽  
Matthias F. Kling ◽  
Regina de Vivie-Riedle
Keyword(s):  
Laser Pulse ◽  
Degrees Of Freedom ◽  
Relaxation Mechanism ◽  
Electron Dynamics ◽  
Nuclear Dynamics ◽  
Molecular Systems ◽  
Ultrafast Relaxation ◽  
Long Time ◽  
Fast Electronic ◽  
Ultrashort Laser

Photo-initiated processes in molecules often involve complex situations where the induced dynamics is characterized by the interplay of nuclear and electronic degrees of freedom. The interaction of the molecule with an ultrashort laser pulse or the coupling at a conical intersection (CoIn) induces coherent electron dynamics which is subsequently modified by the nuclear motion. The nuclear dynamics typically leads to a fast electronic decoherence but also, depending on the system, enables the reappearance of the coherent electron dynamics. We study this situation for the photo-induced nuclear and electron dynamics in the nucleobase uracil. The simulations are performed with our ansatz for the coupled description of the nuclear and electron dynamics in molecular systems (NEMol). After photo-excitation uracil exhibits an ultrafast relaxation mechanism mediated by CoIn's. Both processes, the excitation by a laser pulse and the non-adiabatic relaxation, are explicitly simulated and the coherent electron dynamics is monitored using our quantum mechanical NEMol approach. The electronic coherence induced by the CoIn is observable for a long time scale due to the delocalized nature of the nuclear wavepacket.

scholarly journals Laser-driven electron dynamics for circular dichroism in mass spectrometry: from one-photon excitations to multiphoton ionization

2015 ◽  
Vol 17 (29) ◽  
pp. 19643-19655 ◽  
Author(s):  
Dominik Kröner
Keyword(s):  
Mass Spectrometry ◽  
Circular Dichroism ◽  
Laser Pulse ◽  
First Principles ◽  
Multiphoton Ionization ◽  
First Principles Calculations ◽  
Electron Dynamics ◽  
Resonant Laser ◽  
Circular Dichroïsm ◽  
Photon Excitations

Many electron dynamics based on first-principles calculations reveal origin of the distinction of enantiomers by non-resonant laser pulse ionization.

Ultrafast electron dynamics on the silicon surface excited by an intense femtosecond laser pulse

JETP Letters ◽  
2012 ◽  
Vol 96 (6) ◽  
pp. 375-379 ◽  
Author(s):  
A. A. Ionin ◽  
S. I. Kudryashov ◽  
S. V. Makarov ◽  
P. N. Saltuganov ◽  
L. V. Seleznev ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Silicon Surface ◽  
Electron Dynamics ◽  
Ultrafast Electron Dynamics

EFFECT OF ELECTRON CORRELATION ON THE TWO-PARTICLE DYNAMICS OF A HELIUM ATOM IN A STRONG LASER PULSE

2002 ◽  
Vol 16 (03) ◽  
pp. 415-452 ◽  
Author(s):  
NILS ERIK DAHLEN
Keyword(s):  
Laser Pulse ◽  
Helium Atom ◽  
Electron Correlation ◽  
Density Functional ◽  
Femtosecond Laser Pulses ◽  
Time Dependent ◽  
Electron Dynamics ◽  
Dimensional Model ◽  
One Dimensional ◽  
Hartree Fock

This review discusses the complicated two-electron dynamics of a helium atom in an intense, short laser pulse. A helium gas in femtosecond laser pulses at long wave lengths (λ~700 nm) and high intensities (I~1015 W /cm2) produces surprisingly high numbers of He2+ ions. These laser fields cause large and fast electron oscillations, which makes a solution of the time-dependent Schrödinger equation numerically demanding. The system can be studied using a one-dimensional model atom, which has many of the same properties as the He atom. Using the one-dimensional model, the importance of including electron correlation in a simplified description of the two-electron dynamics is demonstrated. It is shown that electron correlation becomes much less important if the laser field has a short wave length, in which case the electron oscillations are smaller and slower. The problem of including electron correlation in the calculations is discussed in terms of approaches such as time-dependent Hartree–Fock, time-dependent density functional theory and time-dependent extended Hartree–Fock. Some of the commonly used semi-classical models for describing the double-ionization process are presented.

Electron dynamics and prompt ablation of aluminum surface excited by intense femtosecond laser pulse

2014 ◽  
Vol 117 (4) ◽  
pp. 1757-1763 ◽  
Author(s):  
A. A. Ionin ◽  
S. I. Kudryashov ◽  
S. V. Makarov ◽  
L. V. Seleznev ◽  
D. V. Sinitsyn
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Aluminum Surface ◽  
Electron Dynamics
Sign in / Sign up

Export Citation Format

Share Document