Kim, Kyung Taec ; Krishnakumar, E. ; Kang, Kyung Sik ; Park, Mi Na ; Imran, Tayyab ; Zhu, Changjun ; Nam, Chang Hee ; Umesh, G. (2006) Excitation of autoionization states in O2 by using high-order harmonics Journal of Korean Physical Society, 49 . p. 309. ISSN 0374-4884
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Official URL: http://www.kps.or.kr/jkps/abstract_view.asp?articl...
Related URL: http://dx.doi.org/10.3938/jkps.49.309
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 O2. 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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Korean Physical Society. |
| Keywords: | Oxygen Molecule; Autoionization; High-Order Harmonics; Photoelectron Spectroscopy |
| ID Code: | 95401 |
| Deposited On: | 08 Nov 2012 10:35 |
| Last Modified: | 08 Nov 2012 10:35 |
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