Rotational Doppler Effect: A Probe for Molecular Orbitals Anisotropy.
The vibrationally resolved X-ray photoelectron spectra of X2Σg+(3σg−1) and B2Σu+(2σu−1) states of N2+ were recorded for different photon energies and orientations of the polarization vector. Clear dependencies of the spectral line widths on the X-ray polarization as well as on the symmetry of the final electronic states are observed. Contrary to the translational Doppler, the rotational Doppler broadening is sensitive to the photoelectron emission anisotropy. On the basis of theoretical modeling, we suggest that the different rotational Doppler broadenings observed for gerade and ungerade final states result from a Young's double-slit interference phenomenon.
†Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, Roslagstullsbacken 15, S-10691 Stockholm, Sweden.|‡Synchrotron SOLEIL, l'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France.|§College of Electronics, Communication and Physics, Shandong University of Science and Technology, Qianwangang Road 579, Qingdao 266590 Shandong, People's Republic of China.
Quan
Q
Miao
‡Synchrotron SOLEIL, l'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France.
Oksana
O
Travnikova
†Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, Roslagstullsbacken 15, S-10691 Stockholm, Sweden.|‡Synchrotron SOLEIL, l'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France.
Faris
F
Gel'mukhanov
†Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, Roslagstullsbacken 15, S-10691 Stockholm, Sweden.|‡Synchrotron SOLEIL, l'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France.
Victor
V
Kimberg
†Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, Roslagstullsbacken 15, S-10691 Stockholm, Sweden.|∥School of Science, Shandong University of Technology, Xincunxi Road 266, ZiBo, 255049 Shandong, China.
Yu-Ping
YP
Sun
⊥Department of Chemistry, Oregon State University, 153A Gilbert Hall, 2100 SW Campus Way, Corvallis, Oregon 97331, United States.
T Darrah
TD
Thomas
‡Synchrotron SOLEIL, l'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France.
Christophe
C
Nicolas
‡Synchrotron SOLEIL, l'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France.
Minna
M
Patanen
‡Synchrotron SOLEIL, l'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France.|#Extreme Light Infrastructure - Nuclear Physics (ELI-NP), "Horia Hulubei" National Institute for Physics and Nuclear Engineering, 30 Reactorului Street, RO-077125 Măgurele, Jud. Ilfov, Romania.
Catalin
C
Miron
X-ray; Young’s double slit interference; molecular orbitals anisotropy; rotational Doppler effect; translational Doppler effect