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Title: Probing and extracting the structure of vibrating SF 6 molecules with inner-shell photoelectrons

In this paper, we propose a scheme for probing the structure of vibrating molecules with photoelectrons generated from ultrashort soft-x-ray pulses. As an example we analyze below-100-eV photoelectrons liberated from the S ( 2 p ) orbital of vibrating SF 6 molecules to image very small structural changes of molecular vibration. In particular, photoionization cross sections and photoelectron angular distributions (PAD) at nonequilibrium geometries can be retrieved accurately with photoelectrons near the shape resonance at 13 eV. Finally, this is achieved with a pump-probe scheme, in which the symmetric stretch mode is first Raman excited predominantly by a relatively short laser pulse and then later probed at different time delays by a few-femtosecond soft-x-ray pulse with photon energy near 200 eV.
 [1] ;  [2] ;  [3] ;  [3]
  1. Kansas State Univ., Manhattan, KS (United States). Dept. of Physics; Ho Chi Minh City Univ. of Education (Vietnam). Dept. of Physics
  2. Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry
  3. Kansas State Univ., Manhattan, KS (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
FG02-86ER13491; IIA-1430493
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 93; Journal Issue: 6; Journal ID: ISSN 2469-9926
American Physical Society (APS)
Research Org:
Kansas State Univ., Manhattan, KS (United States); Texas A & M Univ., College Station, TX (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
Country of Publication:
United States
electronic transitions; multiphoton or tunneling ionization & excitation; photoemission; ultrashort pulses
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1258713