Time-dependent propagation of high energy laser beams through the atmosphere

The ionization and the dissociation of the diatomic molecular ion H 2 + have been investigated within a scheme where a noise field is added to an intense infrared laser field. The results show that both the ionization and the dissociation probabilities are enhanced with the introduction of the additional noise (the Gaussian white noise or the color noise) field. Further, by tuning the noise intensity and the delay time between the laser and the noise, a stochastic resonancelike curve is observed for the ionization or the dissociation dynamics, showing the existence of an optimal noise intensity and delay time for the given laser field.

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“…etc. The time-dependent wave function ϕðz; R; tÞcan be advanced using the standard second-order split-operator method [36,37].…”

Section: Theoretical Methodsmentioning

confidence: 99%

Intensity enhancement in the molecular ionization and dissociation dynamics in the presence of noise

Feng

Chu

2012

J Mol Model

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“…While everything presented here can be found in the original works developing the method [3,4,5,6], we think it useful to review all the elements necessary to understand the inner workings of the program.…”

Section: Split-operator Methodsmentioning

confidence: 99%

“…A list of valid flags is given in Tab. 3. These values will be printed out in the file designated by the results file key, for the initial wave function and every nprint iteration of the time step ∆t.…”

Section: Parameter Filementioning

confidence: 99%

“…The program is based on the split-operator method [3,4,5,6], which has successfully been used to solve the time-dependent Schrödinger equation in many different settings, from the calculation of vibrational bound states (see, e.g., [5]) and the simulation of high-power laser-matter interactions (see, e.g., [7]), to the laser control of chemical reactions (see, e.g., [8]). The method can also be applied to Schrödinger-like equations, such as the Gross-Pitaevskii [9] and Dirac [10] equations.…”

Section: Introductionmentioning

confidence: 99%

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Program for quantum wave-packet dynamics with time-dependent potentials

Dion

Hashemloo

Rahali

2014

Computer Physics Communications

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We present a program to simulate the dynamics of a wave packet interacting with a time-dependent potential. The time-dependent Schrödinger equation is solved on a one-, two-, or three-dimensional spatial grid using the split operator method. The program can be compiled for execution either on a single processor or on a distributed-memory parallel computer. Keywords Nature of problem:Solves the time-dependent Schrödinger equation for a single particle interacting with a time-dependent potential. Solution method:The wave function is described by its value on a spatial grid and the evolution operator is approximated using the split-operator method [4, 5], with the kinetic energy operator calculated using a Fast Fourier Transform. Restrictions:Unusual features: Simulation can be in one, two, or three dimensions. Serial and parallel versions are compiled from the same source files. Additional comments:Running time: Strongly dependent on problem size. References

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“…As shown in Ref. [11], the optical path length perturbation is derived as with Φ n ( x , y ) = Φ n ( x , y , 0). The complex random function a( x , y ) must have the property a( x , y ) = a * (− x , − y ) because Γ(x, y) is a real quantity.…”

Section: Theoretical Basis Of Laser Beam Propagation In Turbulent Atmmentioning

confidence: 99%

Propagation of low-quality laser beams in turbulent air: new fast simulation methods and experimental results

et al. 2017

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Time-dependent propagation of high energy laser beams through the atmosphere

Cited by 1,220 publications

References 9 publications

Intensity enhancement in the molecular ionization and dissociation dynamics in the presence of noise

Intensity enhancement in the molecular ionization and dissociation dynamics in the presence of noise

Program for quantum wave-packet dynamics with time-dependent potentials

Propagation of low-quality laser beams in turbulent air: new fast simulation methods and experimental results

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