Laser-assisted vibrational excitations during ion-molecule collisions

Mohan, Man; Prasad, Vinod

doi:10.1088/0953-4075/24/3/008

Cited by 11 publications

(8 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The above equations can be solved numerically for the time-dependent coefficients i for a particular set of initial condition, using the standard diagonalization technique used by [25][26][27][28], the coupled Equation 18, can be solved at …”

Section: Methodsmentioning

confidence: 99%

l-Mixing Collision in Presence of Microwave Field

Arya¹,

Dahiya²,

Prasad³

2012

JMP

View full text Add to dashboard Cite

We have studied excitation of multilevel Na-Rydberg atom due to collision with proton in the presence of variable laser field. The interaction of laser field and Na-Rydberg atom is explored using non perturbative Floquet technique. The transition probability is calculated at different laser frequencies (GHz), projectile velocities and impact-parameter. We have also calculated total cross-section for near resonant energy transfer collision of proton with Na-Rydberg atom at different frequencies

show abstract

Section: Methodsmentioning

confidence: 99%

l-Mixing Collision in Presence of Microwave Field

Arya¹,

Dahiya²,

Prasad³

2012

JMP

View full text Add to dashboard Cite

show abstract

“…where the first term on the right hand side represents the unperturbed Hamiltonian of the molecule and the second term is the interaction potential between the ion and the molecule and is given by [4]:…”

Section: Theoretical Approachmentioning

confidence: 99%

“…(14) using fourth-order Runge-Kutta method [30][31][32] with the initial condition taken as molecule being in the ground rotational J = M = 0 state at t = 0 state. This method is quite suitable in obtaining rotational probabilities as their is no dressing by the continuous laser field (which require alternate methods like quasi-energy technique as used by other groups [2][3][4]). In fact, we have applied a laser pulse of short duration.…”

Section: Theoretical Approachmentioning

confidence: 99%

See 1 more Smart Citation

Rotational Excitation of Diatomic Molecule: Time Dependent Study

2018

View full text Add to dashboard Cite

Recent experimental evidences have prompted us to study the dynamics of laser-assisted rotational excitation of a diatomic molecule due to an ion impact. The collision time between the ion and the molecule is very small (few atomic units) and the laser pulses considered are of picosecond range. We study the evolution of the rotational probabilities by varying the various laser parameters (pulse shape, field strength, pulse width, frequency) and collision parameters (impact parameter b, collisional velocity v). It is found that the probabilities of the rotational states depend strongly on the laser pulse parameters and the collision parameters. The study is more emphasised by studying J 2 (a parameter defining the extent of the rotational excitation) and Jz for the system under concern. For higher value of b, the maximum value obtained by J 2 increases and vice versa. Also, the molecule enters the transient mode for large b and v.

show abstract

“…The eigenenergies, eigenfunctions and dipole matrix elements of the system are also calculated. The interaction of static field modified confined-harmonic oscillator system with the laser field is taken into account by non-perturbative quasi-energy technique [37][38][39][40]. The sequence of the paper is as follows.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of Particle in Confined-Harmonic Potential in External Static Electric Field and Strong Laser Field

Lumb¹,

Prasad²

2013

JMP

View full text Add to dashboard Cite

Dynamics of a particle in confined-harmonic potential, subjected to external static electric and time-dependent laser fields is studied. The energy levels and wave functions of unperturbed harmonic oscillator are evaluated using B-polynomial Galerkin method. Matrix formulation is used throughout the procedure. This procedure is very simple and efficient in comparison with other methods. Modifications of wave functions and energy levels due to static electric field are also calculated. Finally, absorption spectra of such a driven oscillator are studied and explained.

show abstract

Laser-assisted vibrational excitations during ion-molecule collisions

Cited by 11 publications

References 19 publications

l-Mixing Collision in Presence of Microwave Field

l-Mixing Collision in Presence of Microwave Field

Rotational Excitation of Diatomic Molecule: Time Dependent Study

Dynamics of Particle in Confined-Harmonic Potential in External Static Electric Field and Strong Laser Field

Contact Info

Product

Resources

About