Molecular Orbital Tomography Based on High-Order Harmonic Generation: Principles and Perspectives

2018 ◽  
pp. 191-216 ◽  
Author(s):  
Anna Gabriella Ciriolo ◽  
Michele Devetta ◽  
Davide Faccialà ◽  
Prabhash Prasannan Geetha ◽  
Aditya Pusala ◽  
...  
Keyword(s):  
Molecular Orbital ◽  
Harmonic Generation ◽  
High Order ◽  
High Order Harmonic Generation ◽  
High Order Harmonic

Molecular orbital dependence of high-order harmonic generation

2006 ◽  
Vol 53 (1-2) ◽  
pp. 97-111 ◽  
Author(s):  
J. P. Marangos * ◽  
C. Altucci ◽  
R. Velotta ◽  
E. Heesel ◽  
E. Springate ◽  
...  
Keyword(s):  
Molecular Orbital ◽  
Harmonic Generation ◽  
High Order ◽  
High Order Harmonic Generation ◽  
High Order Harmonic

HIGH-ORDER HARMONIC GENERATION IN DIATOMIC MOLECULES: QUANTUM INTERFERENCE, NODAL STRUCTURES AND MULTIPLE ORBITALS

2012 ◽  
Vol 26 (02) ◽  
pp. 1130002 ◽  
Author(s):  
B. B. AUGSTEIN ◽  
C. FIGUEIRA DE MORISSON FARIA
Keyword(s):  
Molecular Orbital ◽  
Harmonic Generation ◽  
Quantum Interference ◽  
Strong Field ◽  
Diatomic Molecules ◽  
High Order ◽  
High Order Harmonic Generation ◽  
High Order Harmonic ◽  
Wide Range ◽  
Heteronuclear Molecules

We present a summarizing account of a series of investigations of high-order harmonic generation (HHG) in diatomic molecules beyond the single-active electron and single-active orbital approximation. In these investigations, we include not only the highest occupied molecular orbital (HOMO), but also the lower lying orbitals and the lowest unoccupied molecular orbital (LUMO) in modified versions of the strong-field approximation. We employ perturbation theory around the HOMO, multielectron wavefunctions and initial coherent superpositions of the HOMO and LUMO. The imprints of multiple orbitals, nodal structures and two-center interference on the HHG spectra are investigated in detail, for homonuclear and heteronuclear molecules. We find that, in many situations, different molecular orbitals can be traced back to different energy regions in the spectra. Furthermore, imprints of nodal structures in heteronuclear molecules can be understood by analyzing nodal planes in isoelectronic homonuclear molecules. This opens up a wide range of possibilities for molecular imaging applications.

scholarly journals High-order harmonic spectroscopy for molecular imaging of polyatomic molecules

2014 ◽  
Vol 171 ◽  
pp. 133-143 ◽  
Author(s):  
M. Negro ◽  
M. Devetta ◽  
D. Faccialá ◽  
S. De Silvestri ◽  
C. Vozzi ◽  
...  
Keyword(s):  
Molecular Imaging ◽  
Molecular Orbital ◽  
Harmonic Generation ◽  
High Order ◽  
Molecular Structures ◽  
High Order Harmonic Generation ◽  
Complex Species ◽  
High Order Harmonic ◽  
Long Time ◽  
Simple Molecules

High-order harmonic generation is a powerful and sensitive tool for probing atomic and molecular structures, combining in the same measurement an unprecedented attosecond temporal resolution with a high spatial resolution of the order of an angstrom. Imaging of the outermost molecular orbital by high-order harmonic generation has been limited for a long time to very simple molecules, like nitrogen. Recently we demonstrated a technique that overcame several of the issues that have prevented the extension of molecular orbital tomography to more complex species, showing that molecular imaging can be applied to a triatomic molecule like carbon dioxide. Here we report on the application of such a technique to nitrous oxide (N2O) and acetylene (C2H2). This result represents a first step towards the imaging of fragile compounds, a category which includes most of the fundamental biological molecules.

Relativistic high-order harmonic generation

2003 ◽  
Vol 50 (3-4) ◽  
pp. 375-386
Author(s):  
D. B. MilosÕeviĆ ◽  
W. Becker
Keyword(s):  
Harmonic Generation ◽  
High Order ◽  
High Order Harmonic Generation ◽  
High Order Harmonic

Optimization of conversion efficiency and spatial quality of high-order harmonic generation

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-339-Pr2-344 ◽  
Author(s):  
K. Midorikawa ◽  
Y. Tamaki ◽  
J. Itatani ◽  
M. Obara
Keyword(s):  
Harmonic Generation ◽  
Conversion Efficiency ◽  
High Order ◽  
High Order Harmonic Generation ◽  
High Order Harmonic ◽  
Spatial Quality
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