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Title: Time-dependent density functional theory of high harmonic generation from noble-gas atoms driven by orthogonally-polarized two-color laser fields

Journal Article · · Physical Review A
 [1]; ORCiD logo [2];  [1]
  1. Indiana State Univ., Terre Haute, IN (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

An orthogonally polarized two-color (OTC) field of frequency ratio 1 : 2 is known to generate both odd and even harmonic spectra in the mutually orthogonal directions of the fundamental and the second-harmonic fields, respectively. Recollision angles of an ionized electron driven back to its parent ion by an OTC field are inferred from the intensity ratio of odd and even harmonics, where the relative phase delays between the two-color fields can be used in time-resolved measurements on a subcycle time scale. Here, we present the ab initio, many-electron calculation of time-resolved recollision angles of noble-gas atoms driven by an OTC field, based on the time-dependent density-functional theory. Our results agree well with experimental data by Shafir et al. in Nat. Phys. 5, 412 (2009) of helium atom and New J. Phys. 12, 073032 (2010) of neon atom.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Indiana State Univ., Terre Haute, IN (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001; FG02-06ER46304; AC02-05CH11231
OSTI ID:
1688765
Alternate ID(s):
OSTI ID: 1657855
Report Number(s):
LA-UR-20-22847; TRN: US2204185
Journal Information:
Physical Review A, Vol. 101, Issue 6; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

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