Rovibrational population transfer controlled by two overlapping pulses

Niu, Ying-Yu; Wang, Rong; Jun-Ling, Xiu

doi:10.7498/aps.61.093302

Cited by 4 publications

(1 citation statement)

References 32 publications

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“…Cheng et al [14] found that the selective excitation of excited states can be achieved by phase modulation. Niu et al [15] proposed that the rovibrational population transfer can be controlled by a two-overlapping-pulse scheme. Xie et al [16] found that the population exchange can occur due to the driving action of an external field.…”

Section: Introductionmentioning

confidence: 99%

Delay time dependence of wave packet motion and population transfer of four-level K₂molecule in pump–pump–probe pulses

Chang¹,

Liu²,

Guo³

et al. 2018

Chinese Phys. B

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The effect of delay time on photoelectron spectra and state populations of a four-level ladder K 2 molecule is investigated by a pump1-pump2-probe pulse via the time-dependent wave packet approach. The periodical motion of the wave packet leads to the periodical change of the photoelectron spectra. The Autler-Townes triple splitting appears at zero delay time, double splitting appears at nonzero delay time between pump1 and pump2 pulses, and no splitting appears at nonzero delay time between pump2 and probe pulses. The periodical change of the state populations with the delay time may be due to the coupling effect between the two pulses. It is found that the selectivity of the state populations may be attained by regulating the delay time. The results can provide an important basis for realizing the optical control of molecules experimentally.

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Section: Introductionmentioning

confidence: 99%

Delay time dependence of wave packet motion and population transfer of four-level K₂molecule in pump–pump–probe pulses

Chang¹,

Liu²,

Guo³

et al. 2018

Chinese Phys. B

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Population transfer of HF molecules in the ground electronic state through multiphoton transition

Wang¹,

Jun-Ling²,

Niu³

2013

Acta Phys. Sin.

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The multiphoton transition is investigated theoretically by using wave packet method for the ground electronic state of HF molecule. A laser field composed of two overlapping infrared pulses is used in our model, and the ratio of their frequencies is 1:2. States |4,0> and |4,2> are chosen as target states. Calculated results show that the population can be transferred to different target states as the corresponding resonant frequency is chosen. The probability of the population transfer can be controlled by the initial phase difference of the two pulses. When the initial phase difference is of an odd number of π/2, the probability of population transfer reaches the maximal value. When the initial phase difference is of an even number of π/2, the probability of population transfer reaches the minimum value. In comparison with the state |4,2>, the initial phase difference has a stronger in fluence on the population of the state |4,0>.

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Theoretical study of the influence of femtosecond pump-probe pluse on the photoionization of NaLi molecule

Zhang¹,

Tian-Tian²,

Zhang³

2014

Acta Phys. Sin.

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In this work, using three-state model and time-dependent wave packet method, the wave packet dynamic process and time-resolved photoelectron spectrum of NaLi molecule in femtosecond pump-probe intense laser field are investigated and the relation between the parameter of the femtosecond laser and time-resolved photoelectron spectrum is obtained. It is found that the vibrational periods of wave packet are different for different laser wavelengths and the photoelectron spectra are different for different pump-probe delay times. The height and position of the peak of the photoelectron spectrum change with pump-probe delay time. When 1=352 nm and t=400 fs, the corresponding signal in the outer well (0.5 eV) is obviously smaller than that in the inner well (1.35 eV). The result reveals that the time-resolved photoelectron spectrum reflects the information about the wave packet dynamic of the excited state 41+ The results may be useful for realizing the optical control of molecule and the process of quantum manipulation of molecule experimentally, and provide some important basis for further theoretical research in this respect.

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Rovibrational population transfer controlled by two overlapping pulses

Cited by 4 publications

References 32 publications

Delay time dependence of wave packet motion and population transfer of four-level K₂molecule in pump–pump–probe pulses

Delay time dependence of wave packet motion and population transfer of four-level K₂molecule in pump–pump–probe pulses

Population transfer of HF molecules in the ground electronic state through multiphoton transition

Theoretical study of the influence of femtosecond pump-probe pluse on the photoionization of NaLi molecule

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Rovibrational population transfer controlled by two overlapping pulses

Cited by 4 publications

References 32 publications

Delay time dependence of wave packet motion and population transfer of four-level K2molecule in pump–pump–probe pulses

Delay time dependence of wave packet motion and population transfer of four-level K2molecule in pump–pump–probe pulses

Population transfer of HF molecules in the ground electronic state through multiphoton transition

Theoretical study of the influence of femtosecond pump-probe pluse on the photoionization of NaLi molecule

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Delay time dependence of wave packet motion and population transfer of four-level K₂molecule in pump–pump–probe pulses

Delay time dependence of wave packet motion and population transfer of four-level K₂molecule in pump–pump–probe pulses