Inner-Shell Ionization of potassium atoms ionized by a femtosecondlaser

Journal Article · Wed Jun 07 00:00:00 EDT 2006 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.73.062715· OSTI ID:895588

Hertlein, Marcus P; Adaniya, Hidehito; Amini, Jason; Bressler, Christian; Feinberg, Benedict; Kaiser, Maik; Neumann, Nadine; Prior, Michael H; Belkacem, Ali

With a femtosecond laser pulse we rapidly ionize potassiumatoms (K0) in the gas phase, generating potassium ions (K+), and monitorthe altered energy-level scheme with a subsequent hard x-ray pulse.Removal of the potassium 4s valence electron increases the bindingenergies of both the valence and the 1s core levels, and induces anultrafast change of the 1s-4p x-ray transition energy by about 2.8 eV. Wesimultaneously observe a 50 percent increase in oscillator strength of K+over K0 for that transition.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Director. Office of Science. Office of Basic EnergySciences. Chemical Sciences Geosciences and Biosciences Division; SwissNational Science Foundation Contract 620-66145.01
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 895588
• Report Number(s): LBNL-59729; R&D Project: 402901; BnR: KC0301030
• Journal Information: Physical Review A, Vol. 73, Issue 6; Related Information: Journal Publication Date: June 2006
• Country of Publication: United States
• Language: English

Related Subjects

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PHOTOIONIZATION SPECTROSCOPY IONIZATION ELECTRONS POTASSIUMSYNCHROTRON RADIATION AUGER CHARGE SCREENING X-RAYS