Active control of the molecular rotational wave packet using two laser pulses

Li, Yuexun; Liu, Peng; Zhao, Shitong; Zhang, Zhinan; Li, Ruxin; Xu, Zhizhan

doi:10.1016/j.cplett.2009.05.024

Cited by 17 publications

(11 citation statements)

References 28 publications

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“…Based on our theory, the 'rule of slope' about the alignment modulations concerning all time delays [28] (as shown in Figure 3) is thoroughly explained. Because a variety of previous findings on the two pulse molecular alignment, including the enhancement or suppression of molecular alignment at specific time delays [11][12][13][20][21][22][23][24][25][26][27] and selective control of molecular rotation [18,19,34], can be retrieved from the 'rule of slope', our theory provides a general explanation valid to all these phenomena.…”

Section: Numerical Calculation and Discussionmentioning

confidence: 99%

“…By introducing the second laser pulse at the time delay of a full revival after the first pulse, the alignment of linear molecules is enhanced [22][23][24], while at the half revival, the alignment is suppressed [11][12][13]27]. The recently proposed 'rule of slope' indicates that the enhancement or suppression of molecular alignment is not only achieved when the second pulse is applied around the full or half revival, but also at any other time delays when the slope of alignment curve due to the first pulse is at the maxima or minima [28].…”

Section: Introductionmentioning

confidence: 97%

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Active control scheme and mechanism in the two-pulse molecular alignment

Zhao

Liu

et al. 2011

Chemical Physics Letters

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Section: Numerical Calculation and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Active control scheme and mechanism in the two-pulse molecular alignment

Zhao

Liu

et al. 2011

Chemical Physics Letters

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“…In two pulse alignment strategy ,the alignment created by first aligning pulse can be suppressed or enhanced by second laser pulse [222][223][224][225][226]. The degree of suppression or enhancement depends on laser pulse shape and also on the delay time at which it is applied after the second pulse.…”

Section: Pulse Trainmentioning

confidence: 99%

Orientation and Alignment Dynamics of Polar Molecule Driven by Shaped Laser Pulses

Nautiyal,

Devi,

Tyagi

et al. 2020

Preprint

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We review on the theoretical status of intense laser orientation and alignment-a field at the interface between intense laser physics and chemical dynamics with the potential applications ranging from high harmonic generation, nano-scale processing and control of chemical reactions. The evolution of the rotational wave packet and its dynamics leading to orientation and alignment is the topic of the present discussion. The major part of the article basically presents an overview on recent theoretical progress in controlling the orientation and alignment dynamics of a molecule by means of shaped laser pulses. The various theoretical approaches that lead to orientation and alignment ranging from static electrostatic field in combination with laser field(s), combination of orienting and aligning field, combination of aligning fields, combination of orienting fields, application of train of pulses etc. are discussed. It is focussed that the train of pulses proves to be quite efficient in increasing the orientation or alignment of a molecule without causing the molecule to ionize. The orientation and alignment both can occur in adiabatic and non-adiabatic conditions with the rotational

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“…Recently, field-free molecular alignment has attracted considerable attention for its applications in molecular frame photoelectron angular distribution, 5,6 high-order harmonic generation, 7,8 molecular orbital imaging 9 and intense laser pulse propagation. [10][11][12] The dynamics of field-free molecular alignment can be controlled by applying two or multiple timedelayed laser pulses, [13][14][15][16][17][18][19][20][21] which can be significantly enhanced or completely suppressed by precisely manipulating their intensity ratios and time delays.…”

Section: Introductionmentioning

confidence: 99%

Manipulation of molecular rotational dynamics with multiple laser pulses

Zhang

Jia

et al. 2012

Phys. Chem. Chem. Phys.

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In this paper, a theoretical model is proposed to investigate the molecular rotational state populations pumped by multiple laser pulses through an impulsive Raman process based on second-order perturbation theory and an analytical solution for the dependence of the rotational state populations on the time delays and the relative amplitudes of the multiple laser pulses has been achieved. The results indicate that the molecular rotational state populations can be controlled by precisely manipulating the time delays and the relative amplitudes, which can be significantly enhanced or completely suppressed, and so the molecular rotational wave packet and field-free molecular alignment can be efficiently manipulated.

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Active control of the molecular rotational wave packet using two laser pulses

Cited by 17 publications

References 28 publications

Active control scheme and mechanism in the two-pulse molecular alignment

Active control scheme and mechanism in the two-pulse molecular alignment

Orientation and Alignment Dynamics of Polar Molecule Driven by Shaped Laser Pulses

Manipulation of molecular rotational dynamics with multiple laser pulses

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