Publication

Ultrafast expansion and vibrational coherences of electronic 'Bubbles' in solid neon

Majed Chergui
2002
Journal Articles

Abstract

The dynamics of electron bubble formation upon excitation of the A(3ss) Rydberg orbital of NO in solid Ne was studied by femtosecond pump-probe spectroscopy. The authors observe an ultrafast expansion of the bubble, followed by a vibrational recurrence in .apprx.1.4 ps. The overall dynamics is slower than in the heavier Ar solid. Mol. dynamics simulations show that this results from the collective motion of several shells around the excited impurity, as a result of the nature of the excited NOA-Ne and the Ne-Ne potentials. Quantum effects play a negligible role in the dynamics. [on SciFinder (R)]

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https://infoscience.epfl.ch/entities/publication/f5c67b46-9d7d-4358-8266-9a0fb534f940

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Majed Chergui
2002
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f5c67b46-9d7d-4358-8266-9a0fb534f940

About this result

Related concepts (32)

Neon

Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. It was discovered (along with krypton and xenon) in 1898 as one of the three residual rare inert elements remaining in dry air, after nitrogen, oxygen, argon and carbon dioxide were removed. Neon was the second of these three rare gases to be discovered and was immediately recognized as a new element from its bright red emission spectrum.

Rydberg formula

In atomic physics, the Rydberg formula calculates the wavelengths of a spectral line in many chemical elements. The formula was primarily presented as a generalization of the Balmer series for all atomic electron transitions of hydrogen. It was first empirically stated in 1888 by the Swedish physicist Johannes Rydberg, then theoretically by Niels Bohr in 1913, who used a primitive form of quantum mechanics. The formula directly generalizes the equations used to calculate the wavelengths of the hydrogen spectral series.

Rydberg constant

In spectroscopy, the Rydberg constant, symbol for heavy atoms or for hydrogen, named after the Swedish physicist Johannes Rydberg, is a physical constant relating to the electromagnetic spectra of an atom. The constant first arose as an empirical fitting parameter in the Rydberg formula for the hydrogen spectral series, but Niels Bohr later showed that its value could be calculated from more fundamental constants according to his model of the atom.

Related publications (2)

Ultrafast expansion and vibrational coherences of electronic 'Bubbles' in solid neon

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Femtosecond dynamics of electronic 'bubbles' in solid argon: viewing the inertial response and the bath coherences

Picosecond and femtosecond studies of the energy redistribution in matrix-isolated C60 molecules