Quantum control of a molecular system in an intense field via the selective population of dressed states

Yao, Hongbin; Zheng, Yujun

doi:10.1039/c1cp20149b

Cited by 31 publications

(44 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following the works by Nicole [12] and Yao [35] which had studied using SPO method, the same four state model is used in our simulation. The schematic diagram is shown in Fig 1. The strong laser pulse applied to the K 2 molecule results in transition from ground neutral state 1 Σ + g to the ionic state 2 Σ + g by a three-photon process.…”

Section: Adiabatic Model: Laser Induced Autler-townes (At) Splitting mentioning

confidence: 99%

Short-time Chebyshev wave packet method for molecular photoionization

Sun

Zheng

2016

Chemical Physics Letters

Self Cite

View full text Add to dashboard Cite

In this letter we present the extended usage of short-time Chebyshev wave packet method in the laser induced molecular photoionizaton dynamics. In our extension, the polynomial expansion of the exponential in the time evolution operator, the Hamiltonian operator can act on the wave packet directly which neatly avoids the matrix diagonalization. This propagation scheme is of obvious advantages when the dynamical system has large Hamiltonian matrix. Computational simulations are performed for the calculation of photoelectronic distributions from intense short pulse ionization of K 2 and NaI which represent the Born-Oppenheimer (BO) model and Non-BO one, respectively.

show abstract

Section: Adiabatic Model: Laser Induced Autler-townes (At) Splitting mentioning

confidence: 99%

Short-time Chebyshev wave packet method for molecular photoionization

Sun

Zheng

2016

Chemical Physics Letters

Self Cite

View full text Add to dashboard Cite

show abstract

“…Laser parameters, such as laser intensity [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], laser wavelength [4][5][6][7][8][12][13][14][15][16]18], pulse width [1][2][3][7][8][9][10]18,19], pulse envelope [4,5], and delay time [10][11][12][13][14][15][16][17] can be used for controlling the excitation, ionization and dissociation processes of molecules, and have been studied in multi-level molecular systems.…”

Section: Introductionmentioning

confidence: 99%

Effect of laser pulse width on wave packet motion in femotosecond pump-probe pulses

Guo

Feng

2016

Optik

View full text Add to dashboard Cite

The dependence of the wave packet process of three-level ladder K 2 molecules on pulse width was investigated via time-dependent wave packet method, and was firstly quantified. There is no Autler-Townes splitting in the photoelectron spectrum with weaker pump intensity or shorter pulse width. The oscillation period of wave packet increases and the oscillation amplitude decreases with increasing pulse width. The pulse width affects Rabi oscillation, which results in the periodical change of the populations of the electronic state. Quantifying its effect on the population of the excited state shows that the change frequency varies with increasing pump intensity.The results illustrates that the needed population in electronic state of interested can be obtained by controlling pulse width, which provide some important basis for light manipulation of molecular processes experimentally.

show abstract

“…Autler-Townes (AT) splitting occurs due to nonlinear interactions between light and matter driven by one or more strong variable radiation fields [1]. AT splitting is found to be sensitive to laser intensity [2−18], laser wavelength [2−6, 10, 14−17], pulse width [11], pulse envelope [13,17,18], and time delay [7][8][9]14]. It has been studied theoretically and experimentally in multi-level atomic/molecular system of various configurations.…”

Section: Introductionmentioning

confidence: 99%

Influence of Femtosecond Laser Parameters on Autler-Townes Splitting of Three-Level Ladder Molecules

Li¹,

Lu²,

Guo³

et al. 2015

Chinese Journal of Chemical Physics

View full text Add to dashboard Cite

We theoretically investigate the Autler-Townes (AT) splitting in the photoelectron spectra of three-level ladder K 2 molecule driven by a pump-probe pulse via employing the timedependent wave packet approach. The dependence of AT splitting on two laser intensities and wavelengths are studied in detail. We firstly quantify these effects on peak shift and AT separation. The photoelectron spectra show double splitting with symmetric profiles, but with asymmetric profiles when the wavelength is changed. The magnitude of AT splitting increases with the pump laser intensity, but does not vary with probe intensity. The shifts of the absorption peaks and the splitting between AT doublet are predicted by using an analytical fitting function when the intensity/wavelength of one of the two fields is changed. These novel results are of importance for the molecular spectroscopy and may further stimulate the first principles theoretical studies analytically.

show abstract

Quantum control of a molecular system in an intense field via the selective population of dressed states

Cited by 31 publications

References 56 publications

Short-time Chebyshev wave packet method for molecular photoionization

Short-time Chebyshev wave packet method for molecular photoionization

Effect of laser pulse width on wave packet motion in femotosecond pump-probe pulses

Influence of Femtosecond Laser Parameters on Autler-Townes Splitting of Three-Level Ladder Molecules

Contact Info

Product

Resources

About