Above-threshold ionization of Mg by linearly and circularly polarized laser fields: Origin of the subpeaks in the photoelectron energy spectra

Abstract

References (29)

Citing Articles

Download: PDF (478 kB) or Buy this Article (US$25) (Use Article Pack)

Takashi Nakajima and Gabriela Buica
Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan

Received 9 June 2006; published 25 August 2006

Wetheoretically investigate above-threshold ionization of Mg by linearly and circularlypolarized fs laser pulses. We find that the above-threshold ionizationpeaks are accompanied by small subpeaks for both linearly andcircularly polarized pulses. We interpret the physical origin of thesubpeaks as above-threshold ionization from the low-lying bound states whichare far off-resonantly excited by the spectral wing of thepulse. This interpretation is confirmed by our comparative numerical studies.Furthermore, we provide a clear explanation of why this kindof subpeak in the photoelectron energy spectra has not beenreported for smaller photon energies with Mg and other commonlyused atoms such as H and rare gas atoms.

URL:	http://link.aps.org/doi/10.1103/PhysRevA.74.023411
DOI:	10.1103/PhysRevA.74.023411
PACS:	32.80.Rm; 42.50.Hz 32.80.Rm Multiphoton ionization and excitation to highly excited states in atoms e.g., Rydberg states 42.50.Hz Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift YEAR: 2006
KEYWORDS:	photoionisation, photoelectron spectra, light polarisation, multiphoton processes, quantum optics, atom-photon collisions, magnesium

REFERENCES (29)

View in Separate Window/Tab

For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.

P. Agostini, F. Fabre, G. Mainfray, G. Petite, and N. K. Rahman, Phys. Rev. Lett. 42, 1127 (1979).
P. H. Bucksbaum, M. Bashkansky, R. R. Freeman, T. J. McIlrath, and L. F. DiMauro, Phys. Rev. Lett. 56, 2590 (1986).
R. R. Freeman, P. H. Bucksbaum, H. Milchberg, S. Darack, D. Schumacher, and M. E. Geusic, Phys. Rev. Lett. 59, 1092 (1987).
W. Nicklich, H. Kumpfmüller, H. Walther, X. Tang, H. Xu, and P. Lambropoulos, Phys. Rev. Lett. 69, 3455 (1992).
P. B. Corkum, N. H. Burnett, and F. Brunel, Phys. Rev. Lett. 62, 1259 (1989).
P. H. Bucksbaum, L. D. Van Woerkom, R. R. Freeman, and D. W. Schumacher, Phys. Rev. A 41, 4119 (1990).
N. J. van Druten, R. Trainham, and H. G. Muller, Phys. Rev. A 51, R898 (1995).
H. R. Reiss and V. P. Krainov, Phys. Rev. A 50, R910 (1990).
A. Becker, L. Plaja, P. Moreno, M. Nurhuda, and F. H. M. Faisal, Phys. Rev. A 64, 023408 (2001).
M. V. Ammosov, N. B. Delone, and V. P. Krainov, Sov. Phys. JETP 64, 1191 (1986).
P. Lambropoulos, Phys. Rev. Lett. 28, 585 (1972).
H. R. Reiss, Phys. Rev. Lett. 29, 1129 (1972).
S. Klarsfeld and A. Maquet, Phys. Rev. Lett. 29, 79 (1972).
Y. Gontier and M. Trahin, Phys. Rev. A 7, 2069 (1973).
K. J. LaGattuta, Phys. Rev. A 43, 5157 (1991).
X. Tang, H. Rudolph, and P. Lambropoulos, Phys. Rev. Lett. 65, 3269 (1990).
X. Tang, H. Rudolph, and P. Lambropoulos, Phys. Rev. A 44, R6994 (1991).
K. J. LaGattuta, Phys. Rev. A 47, 1560 (1993).
Jian Zhang and P. Lambropoulos, Phys. Rev. Lett. 77, 2186 (1996).
D. Xenakis, N. E. Karapanagioti, D. Charalambidis, H. Bachau, and E. Cormier, Phys. Rev. A 60, 3916 (1999).