Photodetachment of a homo-nuclear diatomic molecular negative ion with arbitrary molecular axis orientation

Wang, Dehua; Tang, Tian-tian; Wang, Shanshan

doi:10.1080/00268971003698072

Cited by 3 publications

(5 citation statements)

References 15 publications

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“…Young's double-slit experiment explains in a simple manner the interference effects in the electrons. The similar interference phenomena are also observed in photo-detachment of negative molecular ion systems [1][2][3][4][5][6][7].…”

Section: Introductionsupporting

confidence: 59%

“…Afaq and Du have developed a two-center model for the photo-detachment of H − 2 in free space [2,3]. Wang used this model to study the polarization dependent effect on H − 2 photo-detachment [6]. Afaq et al [5] have extended this idea to present a three-center model in order to explain collinearly organized triatomic anions such as BeCl − 2 , HCN − , CS − 2 , and CO − 2 for z-polarized laser light.…”

Section: Introductionmentioning

confidence: 99%

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Photo-Detachment of a Noncollinear Triatomic Anion

Afaq

Farooq

2014

Braz J Phys

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Section: Introductionsupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Photo-Detachment of a Noncollinear Triatomic Anion

Afaq

Farooq

2014

Braz J Phys

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“…Equation (43) leads to the symmetry relation, A (1) 1 (p) = −A (2) 1 (−p), for the partial amplitudes A (j ) 1 (p). As a result, it gives also the following symmetry relation for the detachment amplitude (42a) for equivalent centers (c (±) 1 = ±c (±) 2 ):…”

Section: |mentioning

confidence: 99%

“…In addition to the general development of the QQES theory for the ZRP molecular model, applicable for the description of any strong-field process involving the molecular model, our goal in this paper is to analyze the weak-field limit of the general problem, thereby obtaining results for the dynamic polarizability and the differential photodetachment cross section of the molecular ion. As far as we are aware, photodetachment for this simple molecular ion system has been analyzed previously only within the plane-wave approximation [39][40][41][42][43], which we do not employ in our analysis. Obtaining analytic expressions for the photodetachment cross section of this simple molecular ion model is the first step towards the goal of determining whether the strong-field HHG rates for this model system factorize into laser-dependent and field-free (photorecombination) factors.…”

Section: Introductionmentioning

confidence: 99%

Zero-range-potential model for strong-field molecular processes: Dynamic polarizability and photodetachment cross section

et al. 2013

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We develop a general theoretical framework for the analytical description of the interaction of a model diatomic molecular system with an intense, arbitrarily polarized monochromatic laser field. The model molecule comprises an electron in the field of two zero-range potentials separated by the internuclear distance. This model has an exact analytical solution within the theoretical framework of the quasistationary quasienergy (Floquet) approach. In addition to the development of this general framework, we also present a detailed analysis of the weak-field limit, within which we obtain both the frequency-dependent polarizability and the angle-resolved photodetachment cross section for the model system. These fundamental properties are analyzed for both homonuclear and heteronuclear molecular systems in a linearly polarized laser field, for both ground and excited electronic states, and for arbitrary orientation of the molecular axis relative to the polarization vector of the laser field. The analytical expressions for the polarizability and angle-resolved photoelectron spectra exhibit characteristic double-slit interference patterns, allowing one to study their dependence on the parameters of the problem beyond the level of the Born approximation.

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“…[1,12] are not complete, because each one is assumed for a laser beam polarized in a specific direction. An advanced study is needed to explain photodetachment for all possible directions of the laser beam just like for H − 2 [2,14] and H − 3 . [15] Therefore, in this Letter, we try to derive a relation for such a general case of laser polarization which can provide a clear picture of the problem and also explain the previously reported models.…”

mentioning

confidence: 99%

Photodetachment of a Homo-Nuclear Linear Tetra-Atomic Negative Molecular Ion

Rahman

Ahmad

Afaq

et al. 2012

Chinese Phys. Lett.

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The photodetachment of a homo-nuclear linear tetra-atomic negative molecular ion is studied theoretically for an arbitrary laser polarization. An expression for the total cross section is obtained by using an extended version of the two center model, where each center acts as a source of coherent photodetached-electron waves. Strong oscillations on observation plane, placed at a large distance from the ion, are observed. The amplitude of these oscillations is maximum when the laser polarization is parallel to the molecular axis. Furthermore, the amplitude decreases as the angle between the laser polarization and molecular axis increases and consequently vanishes when they are perpendicular to each other. It is also found that if the distance between the adjacent centers is very small or very large, then the amplitude of oscillations is negligibly small.

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Photodetachment of a homo-nuclear diatomic molecular negative ion with arbitrary molecular axis orientation

Cited by 3 publications

References 15 publications

Photo-Detachment of a Noncollinear Triatomic Anion

Photo-Detachment of a Noncollinear Triatomic Anion

Zero-range-potential model for strong-field molecular processes: Dynamic polarizability and photodetachment cross section

Photodetachment of a Homo-Nuclear Linear Tetra-Atomic Negative Molecular Ion

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