| ATOMIC AND MOLECULAR PHYSICS |
|
|
|
|
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
|
|
| Cite this article: |
|
A. Rahman, Iftikhar Ahmad, A. Afaq et al 2011 Chin. Phys. Lett. 28 063301 |
|
|
|
|
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.
|
| Keywords:
33.80.-b
|
|
|
Received: 11 April 2011
Published: 29 May 2011
|
|
| PACS: |
33.80.-b
|
(Photon interactions with molecules)
|
|
|
|
|
|
[1] Wang D H et al 2009 Chin. Phys. Lett. 26 093201
[2] Yang G C, Liu Y and Chi X X 2005 Chin. Phys. Lett. 22 2233
[3] Afaq A and Ahmad I 2011 Int. J. Quantum Chem. 111 (accepted)
[4] Du M L 2004 Phys. Rev. A 70 055402
[5] Du M L 2006 Eur. Phys. J. D 38 533
[6] Du M L and Delos J B 1987 Phys. Rev. Lett. 58 1731
[7] Du M L and Delos J B 1988 Phys. Rev. A 38 5609s
[8] Wang D H 2007 Chin. Phys. Lett. 24 400
[9] Afaq A and Du M L 2008 Commun. Theor. Phys. 46 119
[10] Yang B C and Du M L 2010 Commun. Theor. Phys. 53 545
[11] Afaq A, Ahmad I et al 2009 Appl. Phys. Lett. 94 041125
[12] Sheehan S M, Parsons B F et al 2008 J. Chem. Phys. 128 034301
[13] Jutier L 2010 J. Chem. Phys. 133 034107
[14] Jutier L et al 2009 J. Chem. Phys. 130 134302
[15] Kozin I N et al 2005 J. Chem. Phys. 122 064309
[16] Chen G and Balasubramaniana K 2007 Chem. Phys. Lett. 438 162
[17] Kozin I N, Law M M, Hutson J M and Tennyson J 2003 J. Chem. Phys. 118 4896
[18] He S and Clouthier D J 2005 J. Chem. Phys. 123 014317
[19] Peric M 2006 Chem. Phys. 330 73
[20] Blondel C, Delsart C and Dulieu F 1996 Phys. Rev. Lett. 77 3755
[21] Blondel C, Chaibi W et al 2005 Eur. Phys. J. D 33 335
[22] Du M L 1989 Phys. Rev. A 40 4983
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
