scholarly journals Experimental and Theoretical Investigation of the 3sp(d) Rydberg States of Fenchone by Polarized Laser Resonance‐Enhanced‐Multiphoton‐Ionization and Fourier Transform VUV Absorption Spectroscopy

ChemPhysChem ◽  
2020 ◽  
Vol 21 (21) ◽  
pp. 2468-2483
Author(s):  
Dhirendra P. Singh ◽  
Nelson De Oliveira ◽  
Gustavo A. Garcia ◽  
Arno Vredenborg ◽  
Ivan Powis
Keyword(s):  
Fourier Transform ◽  
Absorption Spectroscopy ◽  
Theoretical Investigation ◽  
Multiphoton Ionization ◽  
Rydberg States ◽  
Laser Resonance

scholarly journals Intermolecular Vibrations of the Complex of NO in the nsσ Rydberg States and Ar

1995 ◽  
Vol 15 (2-4) ◽  
pp. 157-165 ◽  
Author(s):  
Kazuhide Tsuji ◽  
Kazuhiko Shibuya ◽  
Kinichi Obi
Keyword(s):  
Excitation Spectrum ◽  
Multiphoton Ionization ◽  
Rydberg States ◽  
Intermolecular Forces ◽  
Vibrational Structure ◽  
Excitation Spectra ◽  
Van Der Waals Complex ◽  
Ionization Method ◽  
Dissociation Threshold ◽  
Intermolecular Vibrations

The resonance enhanced multiphoton ionization method has been applied to the study of NO-Ar van der Waals complex in the nsσ (n = 3,4) Rydberg states. We have assigned the intermolecular vibrations appearing in the ×X˜ excitation spectrum of the complex. The bending structure appeared only with the excitation of the stretching mode in the à state, which was interpreted by intermolecular forces. The E˜-à excitation spectra were independent of the initial intermolecular level in the à state and the dissociation threshold to NO(E2∑+ ) + Ar was determined to be 60950 cm-1. The s–d mixing in the 4sσ orbital would make the intermolecular vibrational structure in the E˜—Ãspectra complex.

Fourier-Transform Infrared Absorption Spectroscopy of Chromium Nitride Thin Film

2011 ◽  
Vol 50 ◽  
pp. 01BE03 ◽  
Author(s):  
Jun Shirahata ◽  
Tetsutaro Ohori ◽  
Hiroki Asami ◽  
Tsuneo Suzuki ◽  
Tadachika Nakayama ◽  
...  
Keyword(s):  
Thin Film ◽  
Fourier Transform ◽  
Absorption Spectroscopy ◽  
Infrared Absorption ◽  
Fourier Transform Infrared ◽  
Chromium Nitride ◽  
Infrared Absorption Spectroscopy

Resonance enhanced multiphoton ionization spectroscopy of the NF molecule: 1,3Φ 3d and 4d Rydberg states

1995 ◽  
Vol 102 (4) ◽  
pp. 1515-1527 ◽  
Author(s):  
S. A. Boggis ◽  
J. M. Dyke ◽  
A. N. Hughes ◽  
T. Keszthelyi ◽  
R. Richter ◽  
...  
Keyword(s):  
Multiphoton Ionization ◽  
Rydberg States ◽  
Multiphoton Ionization Spectroscopy

scholarly journals Symmetry of molecular Rydberg states revealed by XUV transient absorption spectroscopy

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Peng Peng ◽  
Claude Marceau ◽  
Marius Hervé ◽  
P. B. Corkum ◽  
A. Yu. Naumov ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Extreme Ultraviolet ◽  
Rydberg States ◽  
Transient Absorption Spectroscopy ◽  
Electronic Transitions ◽  
Final States ◽  
Polarization Direction ◽  
Quasibound State

AbstractTransient absorption spectroscopy is utilized extensively for measurements of bound- and quasibound-state dynamics of atoms and molecules. The extension of this technique into the extreme ultraviolet (XUV) region with attosecond pulses has the potential to attain unprecedented time resolution. Here we apply this technique to aligned-in-space molecules. The XUV pulses are much shorter than the time during which the molecules remain aligned, typically $$<$$<100 fs. However, transient absorption is not an instantaneous probe, because long-lived coherences re-emit for picoseconds to nanoseconds. Due to dephasing of the rotational wavepacket, it is not clear if these coherences will be evident in the absorption spectrum, and whether the properties of the initial excitations will be preserved. We studied Rydberg states of N$${}_{2}$$2 and O$${}_{2}$$2 from 12 to 23 eV. We were able to determine the polarization direction of the electronic transitions, and hence identify the symmetry of the final states.

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