Interferences in Photodetached Electron Spectra from a Linear Tetra-Atomic Negative Ion
A. Rahman1, Iftikhar Ahmad1*, A. Afaq2, M. Haneef1
1Department of Physics, Hazara University, Mansehra, Pakistan 2Centre of Excellence in Solid State Physics, University of the Punjab, Quid-e-Azam Campus, Lahore-54590, Pakistan
Interferences in Photodetached Electron Spectra from a Linear Tetra-Atomic Negative Ion
A. Rahman1, Iftikhar Ahmad1*, A. Afaq2, M. Haneef1
1Department of Physics, Hazara University, Mansehra, Pakistan 2Centre of Excellence in Solid State Physics, University of the Punjab, Quid-e-Azam Campus, Lahore-54590, Pakistan
摘要Photo-detached electron spectra from a hypothetical linear tetra-atomic negative ion is obtained. A plane polarized laser parallel to the axis of the molecular ion is used to knock off the loosely bound electron. The spectrum of the detached-electron flux shows strong interference peaks, while the number of peaks increases with the increase in the photon energy. Strong oscillations are also observed in the total photodetachment cross section spectrum. The frequency of the oscillations increases with the increase in the distance between the successive atoms d in the linear chain. These quantum interference effects vanish for very large d or very high photon energy.
Abstract：Photo-detached electron spectra from a hypothetical linear tetra-atomic negative ion is obtained. A plane polarized laser parallel to the axis of the molecular ion is used to knock off the loosely bound electron. The spectrum of the detached-electron flux shows strong interference peaks, while the number of peaks increases with the increase in the photon energy. Strong oscillations are also observed in the total photodetachment cross section spectrum. The frequency of the oscillations increases with the increase in the distance between the successive atoms d in the linear chain. These quantum interference effects vanish for very large d or very high photon energy.
A. Rahman;Iftikhar Ahmad*;A. Afaq;M. Haneef
. Interferences in Photodetached Electron Spectra from a Linear Tetra-Atomic Negative Ion[J]. 中国物理快报, 2011, 28(6): 63301-063301.
A. Rahman, Iftikhar Ahmad*, A. Afaq, M. Haneef
. Interferences in Photodetached Electron Spectra from a Linear Tetra-Atomic Negative Ion. Chin. Phys. Lett., 2011, 28(6): 63301-063301.
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