Probing Delocalized Current Densities in Selenophene by Resonant X-ray Sum-Frequency Generation

2020 ◽  
Author(s):  
Stefano M. Cavaletto ◽  
Shaul Mukamel
Keyword(s):  
Sum Frequency Generation ◽  
X Ray ◽  
Sum Frequency ◽  
Current Densities ◽  
Frequency Generation

X-ray / Optical Sum Frequency Generation

CLEO: 2013 ◽  
2013 ◽  
Author(s):  
T.E. Glover ◽  
D.M. Fritz ◽  
M. Cammarata ◽  
T.K. Allison ◽  
Sinisa Coh ◽  
...  
Keyword(s):  
Sum Frequency Generation ◽  
X Ray ◽  
Sum Frequency ◽  
Frequency Generation

scholarly journals Imaging of transition charge densities involving carbon core excitations by all X-ray sum-frequency generation

2019 ◽  
Vol 377 (2145) ◽  
pp. 20170470 ◽  
Author(s):  
Daeheum Cho ◽  
Jérémy R. Rouxel ◽  
Markus Kowalewski ◽  
JinYong Lee ◽  
Shaul Mukamel
Keyword(s):  
Charge Density ◽  
Density Functional ◽  
Sum Frequency Generation ◽  
X Rays ◽  
Core Excitation ◽  
X Ray ◽  
Sum Frequency ◽  
Electron Density Matrix ◽  
Frequency Generation ◽  
Core Excitations

X-ray diffraction signals from the time-evolving molecular charge density induced by selective core excitation of chemically inequivalent carbon atoms are calculated. A narrowband X-ray pulse selectively excites the carbon K-edge of the –CH 3 or –CH 2 F groups in fluoroethane (CH 3 –CH 2 F). Each excitation creates a distinct core coherence which depends on the character of the electronic transition. Direct propagation of the reduced single-electron density matrix, using real-time time-dependent density functional theory, provides the time-evolving charge density following interactions with external fields. The interplay between partially filled valence molecular orbitals upon core excitation induces characteristic femtosecond charge migration which depends on the core–valence coherence, and is monitored by the sum-frequency generation diffraction signal. This article is part of the theme issue ‘Measurement of ultrafast electronic and structural dynamics with X-rays’.

High-Pressure Studies of CO Adsorption on Pd(111) by X-ray Photoelectron Spectroscopy and Sum-Frequency Generation

2003 ◽  
Vol 107 (15) ◽  
pp. 3522-3527 ◽  
Author(s):  
Vasiliy V. Kaichev ◽  
Igor P. Prosvirin ◽  
Valerii I. Bukhtiyarov ◽  
Holger Unterhalt ◽  
Günther Rupprechter ◽  
...  
Keyword(s):  
High Pressure ◽  
Photoelectron Spectroscopy ◽  
Co Adsorption ◽  
Sum Frequency Generation ◽  
X Ray ◽  
Sum Frequency ◽  
High Pressure Studies ◽  
Frequency Generation

Interfacial Restructuring of Ionic Liquids Determined by Sum-Frequency Generation Spectroscopy and X-Ray Reflectivity

2008 ◽  
Vol 112 (49) ◽  
pp. 19649-19654 ◽  
Author(s):  
Yoonnam Jeon ◽  
Jaeho Sung ◽  
Wei Bu ◽  
David Vaknin ◽  
Yukio Ouchi ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Sum Frequency Generation ◽  
X Ray ◽  
Sum Frequency ◽  
Sum Frequency Generation Spectroscopy ◽  
Frequency Generation

Resonant X-ray Sum-Frequency-Generation Spectroscopy of K-Edges in Acetyl Fluoride

2019 ◽  
Vol 15 (12) ◽  
pp. 6832-6839 ◽  
Author(s):  
Adam Bruner ◽  
Stefano M. Cavaletto ◽  
Niranjan Govind ◽  
Shaul Mukamel
Keyword(s):  
Sum Frequency Generation ◽  
X Ray ◽  
Sum Frequency ◽  
Sum Frequency Generation Spectroscopy ◽  
Frequency Generation
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