Closed-orbit theory for photodetachment in a time-dependent electric field

Yang, Biwei; Robicheaux, F.

doi:10.1103/physreva.93.053413

Cited by 20 publications

(46 citation statements)

References 42 publications

(112 reference statements)

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“…If the outgoing and returning directions for the electron orbit are the same, g v = −1; otherwise g v = 1. [26] By combining Eq. ( 16) and Eq.…”

Section: Derivation Of the Time-dependent Photodetachment Cross Sectionmentioning

confidence: 99%

“…They studied the photodetachment of H − and F − ion in a time-dependent electric field. [25,26] On this basis,we have studied the photodetachment of H − ion in a time-dependent gradient electric field and oscillating electric field. [27,28] However, it is unknown what will happen for the photodetachment of H − ion in an electric field varying with both space and time.…”

Section: Introductionmentioning

confidence: 99%

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Photodetachment dynamics of H ⁻ ion in a harmonic potential plus a time-dependent oscillating electric field

Wang

Wang²

2017

Chinese Phys. B

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The photodetachment dynamics of H − ion in a harmonic potential plus an oscillating electric field is studied using the time-dependent closed orbit theory. An analytical formula for calculating the photodetachment cross section of this system is put forward. It is found that the photodetachment cross section of this system is nearly unaffected for the weak oscillating electric field strength, but oscillates complicatedly when the oscillating electric field strength turns strong. In addition, the frequency of the harmonic potential and the oscillating electric field (the frequency of the harmonic potential and the frequency of the oscillating electric field are the same in the paper, unless otherwise stated.) can also affect the photodetachment dynamics of this system. With the increase of the frequency in the harmonic potential and the oscillating electric field, the number of the closed orbits for the detached electrons increased, which makes the oscillatory structure in the photodetachment cross section much more complex. Our study presents an intuitive understanding of the photodetachment dynamics driven by a harmonic potential plus an oscillating electric field from a space and time dependent viewpoint. This study is very useful in guiding the future experimental research for the photodetachment dynamics in the electric field both changing with space and time.

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“…If the outgoing and returning directions for the electron orbit are the same, g v = −1; otherwise g v = 1. [26] By combining Eq. ( 16) and Eq.…”

Section: Derivation Of the Time-dependent Photodetachment Cross Sectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photodetachment dynamics of H ⁻ ion in a harmonic potential plus a time-dependent oscillating electric field

Wang

Wang²

2017

Chinese Phys. B

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“…[23] Recently, Yang and Robicheaux et al extended this semiclasical method to the time-dependent electric field and studied the phtodetachment dynamics of negative ions in the time-dependent electric field. [24][25][26][27][28][29][30] Inspired by these previous works, in this paper, we extend the semiclassical open-orbit theory to the time-dependent electric field and study the interference effect in the photodetachment of H − ion in an oscillating electric field. It is found that this system is quite different from the case in a static electric field.…”

Section: Introductionmentioning

confidence: 96%

Temporal interference driven by an oscillating electric field in photodetachment of H ⁻ ion

Wang¹,

Li²,

Song³

et al. 2018

Chinese Phys. B

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The real time domain interferometry for the photodetachment dynamics driven by the oscillating electric field has been studied for the first time. Both the geometry of the detached electron trajectories and the electron probability density are shown to be different from those in the photodetachment dynamics in a static electric field. The influence of the oscillating electric field on the detached electron leads to a surprisingly intricate shape of the electron waves, and multiple interfering trajectories generate complex interference patterns in the electron probability density. Using the semiclassical open-orbit theory, we calculate the interference patterns in the time-dependent electron probability density for different electric field strengths, different frequencies and phases in the oscillating electric field. This method is universal, and can be extended to study the photoionization dynamics of the atoms in the time-dependent electric field. Our study can guide the future experimental researches in the photodetachment or photoionization microscopy of negative ions and atoms in the oscillating electric field.

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“…The study of photoionization of Rydberg atoms in an oscillating radio frequency field has been performed experimentally [26] and the well-established time-independent closed-orbit theory has been extended to time-dependent systems [27]. Recently, Yang and Robicheaux [28] have theoretically investigated the photodetachment dynamics of negative ions in the presence of a single-cycle THz pulsed electric field in detail. The theoretical formulations they made are applicable to any type of time-dependent field.…”

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confidence: 99%

On the detection of closed orbits in time-dependent systems by using double-pulse lasers

Khan¹,

Du²

2020

Commun. Theor. Phys.

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In the photodetachment of atoms or negative ions by a double-pulse laser, the first pulse of the double-pulse laser generates waves and the delayed second pulse may detect them. The phenomenon of the excitation and detection of waves by a double-pulse laser can be used to identify the closed orbits in the system. We demonstrate this phenomenon with a negative hydrogen ion (H−) by analyzing the total population excited by a double-pulse laser in a time-dependent field for different physical parameters. By analyzing the total excited population using a double-pulse laser, we can uncover all the closed orbits existing in the system. We demonstrate that this can be realized by scanning the first pulse position and the time delay between the two pulses.

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Closed-orbit theory for photodetachment in a time-dependent electric field

Cited by 20 publications

References 42 publications

Photodetachment dynamics of H ⁻ ion in a harmonic potential plus a time-dependent oscillating electric field

Photodetachment dynamics of H ⁻ ion in a harmonic potential plus a time-dependent oscillating electric field

Temporal interference driven by an oscillating electric field in photodetachment of H ⁻ ion

On the detection of closed orbits in time-dependent systems by using double-pulse lasers

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Closed-orbit theory for photodetachment in a time-dependent electric field

Cited by 20 publications

References 42 publications

Photodetachment dynamics of H − ion in a harmonic potential plus a time-dependent oscillating electric field

Photodetachment dynamics of H − ion in a harmonic potential plus a time-dependent oscillating electric field

Temporal interference driven by an oscillating electric field in photodetachment of H − ion

On the detection of closed orbits in time-dependent systems by using double-pulse lasers

Contact Info

Product

Resources

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Photodetachment dynamics of H ⁻ ion in a harmonic potential plus a time-dependent oscillating electric field

Photodetachment dynamics of H ⁻ ion in a harmonic potential plus a time-dependent oscillating electric field

Temporal interference driven by an oscillating electric field in photodetachment of H ⁻ ion