The electron affinities of O, Si, and S revisited with the photodetachment microscope

Blondel, Christophe; Chaibi, W.; Delsart, C.; Drag, Cyril; Goldfarb, Fabienne; Kröger, S.

doi:10.1140/epjd/e2005-00069-9

Cited by 136 publications

(121 citation statements)

References 37 publications

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“…The recorded circular intensity fringes compare very well with the theoretical prediction [22]. They show a highly accurate verification of Einstein's law which can be used to obtain the binding energy of O − with unprecedented accuracy [19,20]. Other new phenomena also appear in these experiments.…”

Section: Near-threshold Effectssupporting

confidence: 74%

“…The fringe pattern in the current distribution depends sensitively on the energy. By counting the number of fringes the binding energy E 0 of the outer electron can be determined from Einstein's law [18,19,20,14].…”

Section: Photoelectric Effect As a Two-step Processmentioning

confidence: 99%

“…The propagation of photoelectrons in a homogeneous external electric field has been experimentally studied by Blondel et al [18,19,20]. The left-hand side in Fig.…”

Section: Near-threshold Effectsmentioning

confidence: 99%

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The photoelectric effect in external fields

et al. 2005

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Atoms and negative ions interacting with laser photons yield a coherent source of photoelectrons. Applying external fields to photoelectrons gives rise to interesting and valuable interference phenomena. We analyze the spatial distribution of the photocurrent using elementary quantum methods. The photoelectric effect is shown to be an interesting example for the use of coherent particle sources in quantum mechanics.

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Section: Near-threshold Effectssupporting

confidence: 74%

Section: Photoelectric Effect As a Two-step Processmentioning

confidence: 99%

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The photoelectric effect in external fields

et al. 2005

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“…For these experiments, the energy scale is calibrated by the S -photoelectron spectrum. 50,51 In contrast with the hemispherical analyzer, the VMI spectrometer has a spectral resolution that is a function of eKE, namely the resolution decreases with increasing eKE. This resolution is determined by the eKE and the Full Width at Half Maximum (FWHM) of a peak in a photoelectron spectrum due to a single transition.…”

Section: Experimental Methodsmentioning

confidence: 99%

Anion photoelectron spectroscopy of deprotonated ortho-, meta-, and para-methylphenol

Nelson

Gichuhi

Miller

et al. 2017

The Journal of Chemical Physics

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The anion photoelectron spectra of ortho-, meta-, and para-methylphenoxide, as well as methyl deprotonated meta-methylphenol, were measured. Using the Slow Electron Velocity Map Imaging (SEVI) technique, the Electron Affinities (EAs) of the o-, m-, and p-methylphenoxyl radicals were measured: 2.1991 ± 0.0014, 2.2177 ± 0.0014, and 2.1199 ± 0.0014 eV, respectively. The EA of mmethylenephenol was also obtained, 1.024 ± 0.008 eV. In all four cases, the dominant vibrational progressions observed are due to several ring distortion vibrational normal modes that were activated upon photodetachment, leading to vibrational progressions spaced by ~500 cm -1 . Using the

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“…By ionizing close to the thresholds with pulsed lasers and exploiting resonance-enhanced multiphoton excitation sequences to avoid spectral congestion, rotationally resolved spectra can be observed under conditions where the photoelectron angular distributions are measurable (Allendorf et al 1989, Hockett et al 2009). Interferometric measurements of the photoelectron kinetic energy by photodetachment microscopy fully exploits the advantage of ionizing immediately above threshold and can be used to determine photodetachment thresholds and electron affinities with an accuracy of ≈ 0.005 cm −1 (see Blondel et al 2005).…”

Section: Discussionmentioning

confidence: 99%

High‐resolution Photoelectron Spectroscopy

Merkt

Willitsch

Hollenstein

2011

Handbook of High‐resolution Spectroscopy

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The evolution of photoelectron spectroscopy of neutral molecules in the gas phase, from its first applications in the early 1960s to the present day, is reviewed with emphasis on the description of methods that have contributed to the improvement of resolution. In the early days, photoelectron spectroscopy was very successfully used to study the electronic structure of molecules. As the resolution improved, the emphasis gradually shifted to studies of the structure and dynamics of molecular cations. Current methods enable one to fully resolve the rotational structure in the photoelectron spectra of polyatomic molecules and even to measure the fine and hyperfine structures of positively charged atoms and small molecules. Several of the methods providing high resolution make use of the long lifetimes and electric‐field‐ionization properties of high Rydberg states and give access to detailed information on molecular ionization channels and molecular photoionization.

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The electron affinities of O, Si, and S revisited with the photodetachment microscope

Cited by 136 publications

References 37 publications

The photoelectric effect in external fields

The photoelectric effect in external fields

Anion photoelectron spectroscopy of deprotonated ortho-, meta-, and para-methylphenol

High‐resolution Photoelectron Spectroscopy

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