Please use this identifier to cite or link to this item: https://idr.l3.nitk.ac.in/jspui/handle/123456789/11107
Title: Excitation of autoionization states in O-2 by using high-order harmonics
Authors: Kim
KT;, Kang
KS;, Park
MN;, Imran
T;, Zhu
CJ;, Nam
CH;, Krishnakumar
E;, Umesh
G
Issue Date: 2006
Citation: JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2006, Vol.49, 1, pp.309-313
Abstract: Photoionization of oxygen molecules by high-order harmonics was investigated. High-order harmonics of a Ti:sapphire laser produced in a Kr gas cell were used to excite autoionization states of O-2. Since the high-order harmonic source used contains several harmonic orders, the resulting photoelectron spectrum also showed multiple peaks coming from different orders of harmonics. A subtraction method using known photoionization cross-sections was employed to separate out individual contributions from the harmonics. The photoelectron spectrum from the 11th harmonic shows a clean contribution from an autoionizing state.
URI: http://idr.nitk.ac.in/jspui/handle/123456789/11107
Appears in Collections:1. Journal Articles

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