Two photon resonant excitation of Copper–Rydberg levels

Castleberry, Vanessa A.; Dee, Jason; Villarroel, Otsmar J.; Laboren, Ivanna E.; Bellert, D.

doi:10.1016/j.physleta.2008.04.059

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…In the present work, we saw up to n = 16 clearly, with a weak feature for n = 17 sometimes visible, while Castleberry et al 8 saw from n = 9 up to n = 21, with an intensity distribution similar to that in Fig. 1 16 The important selection rules for the two-photon processes include orbital angular momentum change ∆l=0, ±2, where l is the orbital angular momentum quantum number of the electron being excited (s  s is also explicitly forbidden); whereas the total angular momentum change must be ∆J = 0, ±1, ±2, with the total electronic spin remaining unchanged if LS-coupling prevails.…”

Section: Resultssupporting

confidence: 58%

Resonance-enhanced multiphoton ionization spectroscopy of laser-ablated copper atoms

Andrejeva

Harris

Wright

2014

Chemical Physics Letters

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Resonance-enhanced multiphoton ionization (REMPI) spectra of laser-ablated copper atoms entrained in a supersonic free jet expansion are reported. Depending on the ionization scheme employed, and the conditions under which the copper atoms are produced, very different spectra are produced, and these are discussed. In some circumstances, high proportions of metastable atoms survive the ablation and expansion process and are clearly seen in the spectra. The spectroscopic transitions for the observed lines are identified, and it is noted that some caution is merited in the assumption that only ground state copper atoms are present following laser ablation.

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Section: Resultssupporting

confidence: 58%

Resonance-enhanced multiphoton ionization spectroscopy of laser-ablated copper atoms

Andrejeva

Harris

Wright

2014

Chemical Physics Letters

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Laserspray and Matrix-Assisted Ionization Inlet Coupled to High-Field FT-ICR Mass Spectrometry for Peptide and Protein Analysis

Nyadong¹,

Inutan

Xu³

et al. 2013

J. Am. Soc. Mass Spectrom.

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We present the first coupling of laser spray ionization inlet (LSII) and matrix assisted ionization inlet (MAII) to high-field Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) for generation of electrospray-like ions to take advantage of increased sensitivity, mass range, and mass resolving power afforded by multiple charging. We apply the technique to top-down protein analysis and characterization of metalloproteins. We also present a novel method for generation of multiply-charged copper-peptide complexes with varying degrees of copper adduction by LSII. We show an application of the generated copper-peptide complexes for protein charge state and molecular weight determination, particularly useful for an instrument such as a linear ion trap mass analyzer.

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Two photon resonant excitation of Copper–Rydberg levels

Cited by 2 publications

References 26 publications

Resonance-enhanced multiphoton ionization spectroscopy of laser-ablated copper atoms

Resonance-enhanced multiphoton ionization spectroscopy of laser-ablated copper atoms

Laserspray and Matrix-Assisted Ionization Inlet Coupled to High-Field FT-ICR Mass Spectrometry for Peptide and Protein Analysis

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