Photoionization of Xe and Xe@ C60 from the 4d shell in RABBITT fields

Alexander W. Bray; Faiza Naseem; Anatoli S. Kheifets

doi:10.1103/PhysRevA.98.043427

Photoionization of Xe and Xe@ C60 from the 4d shell in RABBITT fields

Alexander W. Bray, Faiza Naseem, Anatoli S. Kheifets

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

13 Citations (Scopus)

Abstract

We consider photoemission from the 4d shell of the free Xe and encapsulated Xe@C60 atoms by ionizing XUV and probing IR fields typical for a RABBITT (reconstruction of attosecond beating by interference of two-photon transitions) measurement. Our theoretical model is based on the numerical solution of the time-dependent Schrödinger equation in the single-active-electron approximation. The fullerene C60 cage is represented by a finite-width well potential. We test our model against an analogous set of nonrelativistic [Phys. Rev. A 89, 053424 (2014)PLRAAN1050-294710.1103/PhysRevA.89.053424] and relativistic [Phys. Rev. A 96, 053407 (2017)2469-992610.1103/PhysRevA.96.053407] calculations for the 4d shell of Xe and Xe@C60 driven by a continuous XUV field. Based on this verification, we make predictions for the total ionization probability, angular anisotropy β parameter, and the angular-dependent atomic time delay τa from the threshold to several hundred eV of excess energy.

Original language	English
Article number	043427
Journal	Physical Review A
Volume	98
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.98.043427
Publication status	Published - 18 Oct 2018

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title = "Photoionization of Xe and Xe@ C60 from the 4d shell in RABBITT fields",

abstract = "We consider photoemission from the 4d shell of the free Xe and encapsulated Xe@C60 atoms by ionizing XUV and probing IR fields typical for a RABBITT (reconstruction of attosecond beating by interference of two-photon transitions) measurement. Our theoretical model is based on the numerical solution of the time-dependent Schr{\"o}dinger equation in the single-active-electron approximation. The fullerene C60 cage is represented by a finite-width well potential. We test our model against an analogous set of nonrelativistic [Phys. Rev. A 89, 053424 (2014)PLRAAN1050-294710.1103/PhysRevA.89.053424] and relativistic [Phys. Rev. A 96, 053407 (2017)2469-992610.1103/PhysRevA.96.053407] calculations for the 4d shell of Xe and Xe@C60 driven by a continuous XUV field. Based on this verification, we make predictions for the total ionization probability, angular anisotropy β parameter, and the angular-dependent atomic time delay τa from the threshold to several hundred eV of excess energy.",

author = "Bray, {Alexander W.} and Faiza Naseem and Kheifets, {Anatoli S.}",

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AU - Bray, Alexander W.

AU - Naseem, Faiza

AU - Kheifets, Anatoli S.

PY - 2018/10/18

Y1 - 2018/10/18

N2 - We consider photoemission from the 4d shell of the free Xe and encapsulated Xe@C60 atoms by ionizing XUV and probing IR fields typical for a RABBITT (reconstruction of attosecond beating by interference of two-photon transitions) measurement. Our theoretical model is based on the numerical solution of the time-dependent Schrödinger equation in the single-active-electron approximation. The fullerene C60 cage is represented by a finite-width well potential. We test our model against an analogous set of nonrelativistic [Phys. Rev. A 89, 053424 (2014)PLRAAN1050-294710.1103/PhysRevA.89.053424] and relativistic [Phys. Rev. A 96, 053407 (2017)2469-992610.1103/PhysRevA.96.053407] calculations for the 4d shell of Xe and Xe@C60 driven by a continuous XUV field. Based on this verification, we make predictions for the total ionization probability, angular anisotropy β parameter, and the angular-dependent atomic time delay τa from the threshold to several hundred eV of excess energy.

AB - We consider photoemission from the 4d shell of the free Xe and encapsulated Xe@C60 atoms by ionizing XUV and probing IR fields typical for a RABBITT (reconstruction of attosecond beating by interference of two-photon transitions) measurement. Our theoretical model is based on the numerical solution of the time-dependent Schrödinger equation in the single-active-electron approximation. The fullerene C60 cage is represented by a finite-width well potential. We test our model against an analogous set of nonrelativistic [Phys. Rev. A 89, 053424 (2014)PLRAAN1050-294710.1103/PhysRevA.89.053424] and relativistic [Phys. Rev. A 96, 053407 (2017)2469-992610.1103/PhysRevA.96.053407] calculations for the 4d shell of Xe and Xe@C60 driven by a continuous XUV field. Based on this verification, we make predictions for the total ionization probability, angular anisotropy β parameter, and the angular-dependent atomic time delay τa from the threshold to several hundred eV of excess energy.

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VL - 98

JO - Physical Review A

JF - Physical Review A

IS - 4

M1 - 043427

ER -

Photoionization of Xe and Xe@ C60 from the 4d shell in RABBITT fields

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