Attosecond time delay in the photoionization of endohedral atoms A@C60: A probe of confinement resonances

P. C. Deshmukh; A. Mandal; S. Saha; A. S. Kheifets; V. K. Dolmatov; S. T. Manson

doi:10.1103/PhysRevA.89.053424

Attosecond time delay in the photoionization of endohedral atoms A@C60: A probe of confinement resonances

P. C. Deshmukh^*, A. Mandal, S. Saha, A. S. Kheifets, V. K. Dolmatov, S. T. Manson

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

50 Citations (Scopus)

Abstract

The effects of confinement resonances on photoelectron group delay (Wigner time delay) following ionization of an atom encapsulated inside a C60 cage have been studied theoretically using both relativistic and nonrelativistic random phase approximations. The results indicate clearly the resonant character of the confinement oscillations in time delay of the 4d shell of Xe@C60 and present a most direct manifestation of Wigner time delay. These oscillations were missed in a previous theoretical investigation of Ar@C60 [Phys. Rev. Lett. 111, 203003 (2013)PRLTAO0031-900710.1103/PhysRevLett.111.203003].

Original language	English
Article number	053424
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	89
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.89.053424
Publication status	Published - 29 May 2014

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title = "Attosecond time delay in the photoionization of endohedral atoms A@C60: A probe of confinement resonances",

abstract = "The effects of confinement resonances on photoelectron group delay (Wigner time delay) following ionization of an atom encapsulated inside a C60 cage have been studied theoretically using both relativistic and nonrelativistic random phase approximations. The results indicate clearly the resonant character of the confinement oscillations in time delay of the 4d shell of Xe@C60 and present a most direct manifestation of Wigner time delay. These oscillations were missed in a previous theoretical investigation of Ar@C60 [Phys. Rev. Lett. 111, 203003 (2013)PRLTAO0031-900710.1103/PhysRevLett.111.203003].",

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T1 - Attosecond time delay in the photoionization of endohedral atoms A@C60

T2 - A probe of confinement resonances

AU - Deshmukh, P. C.

AU - Mandal, A.

AU - Saha, S.

AU - Kheifets, A. S.

AU - Dolmatov, V. K.

AU - Manson, S. T.

PY - 2014/5/29

Y1 - 2014/5/29

N2 - The effects of confinement resonances on photoelectron group delay (Wigner time delay) following ionization of an atom encapsulated inside a C60 cage have been studied theoretically using both relativistic and nonrelativistic random phase approximations. The results indicate clearly the resonant character of the confinement oscillations in time delay of the 4d shell of Xe@C60 and present a most direct manifestation of Wigner time delay. These oscillations were missed in a previous theoretical investigation of Ar@C60 [Phys. Rev. Lett. 111, 203003 (2013)PRLTAO0031-900710.1103/PhysRevLett.111.203003].

AB - The effects of confinement resonances on photoelectron group delay (Wigner time delay) following ionization of an atom encapsulated inside a C60 cage have been studied theoretically using both relativistic and nonrelativistic random phase approximations. The results indicate clearly the resonant character of the confinement oscillations in time delay of the 4d shell of Xe@C60 and present a most direct manifestation of Wigner time delay. These oscillations were missed in a previous theoretical investigation of Ar@C60 [Phys. Rev. Lett. 111, 203003 (2013)PRLTAO0031-900710.1103/PhysRevLett.111.203003].

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DO - 10.1103/PhysRevA.89.053424

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JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 5

M1 - 053424

ER -

Attosecond time delay in the photoionization of endohedral atoms A@C60: A probe of confinement resonances

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