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

Journal Article · · Physical Review A
 [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

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.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
FG02-86ER13491; IIA-1430493
OSTI ID:
1461975
Alternate ID(s):
OSTI ID: 1258713
Journal Information:
Physical Review A, Vol. 93, Issue 6; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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Cited By (2)

Theoretical study of ultrafast x-ray photoelectron diffraction from molecules undergoing photodissociation journal March 2018
Time-resolved photoelectron angular distributions from nonadiabatically aligned CO 2 molecules with SX-FEL at SACLA journal November 2018