High harmonic generation at long wavelengths

被引:84
作者
Sheehy, B [1 ]
Martin, JDD
DiMauro, LF
Agostini, P
Schafer, KJ
Gaarde, MB
Kulander, KC
机构
[1] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA
[2] Ctr Etud Saclay, SPAM, F-91191 Gif Sur Yvette, France
[3] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA
[4] Lund Inst Technol, Dept Phys, S-22100 Lund, Sweden
[5] Univ Calif Lawrence Livermore Natl Lab, TAMP, Livermore, CA 94551 USA
关键词
D O I
10.1103/PhysRevLett.83.5270
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
High harmonic radiation spectra up to 19th order in alkali metal vapors excited by an intense, picosecond mid-infrared (3 -4 mu m) laser are reported and compared to theory. The strong-field dynamics in the alkali metal atoms exhibit significant differences from all previously studied systems due to the strong coupling between their ground and first excited states.
引用
收藏
页码:5270 / 5273
页数:4
相关论文
共 17 条
[1]   Attosecond pulse trains using high-order harmonics [J].
Antoine, P ;
LHuillier, A ;
Lewenstein, M .
PHYSICAL REVIEW LETTERS, 1996, 77 (07) :1234-1237
[2]   PLASMA PERSPECTIVE ON STRONG-FIELD MULTIPHOTON IONIZATION [J].
CORKUM, PB .
PHYSICAL REVIEW LETTERS, 1993, 71 (13) :1994-1997
[3]   PROPOSAL FOR ATTOSECOND LIGHT-PULSE GENERATION USING LASER-INDUCED MULTIPLE-HARMONIC CONVERSION PROCESSES IN RARE-GASES [J].
FARKAS, G ;
TOTH, C .
PHYSICS LETTERS A, 1992, 168 (5-6) :447-450
[4]   Macroscopic studies of short-pulse high-order harmonic generation using the time-dependent Schrodinger equation [J].
Gaarde, MB ;
Antoine, P ;
L'Huillier, A ;
Schafer, KJ ;
Kulander, KC .
PHYSICAL REVIEW A, 1998, 57 (06) :4553-4560
[5]   Absolute photoionization cross sections of excited He states in the near-threshold region [J].
Gisselbrecht, M ;
Descamps, D ;
Lyngå, C ;
L'Huillier, A ;
Wahlström, CG ;
Meyer, M .
PHYSICAL REVIEW LETTERS, 1999, 82 (23) :4607-4610
[6]   Photoemission with laser-generated harmonics tunable to 80 eV [J].
Haight, R .
APPLIED OPTICS, 1996, 35 (33) :6445-6448
[7]   ATOMIC-SCALE TEMPORAL STRUCTURE INHERENT TO HIGH-ORDER HARMONIC-GENERATION [J].
HARRIS, SE ;
MACKLIN, JJ ;
HANSCH, TW .
OPTICS COMMUNICATIONS, 1993, 100 (5-6) :487-490
[8]  
Keldysh L. V., 1964, ZH EKSP TEOR FIZ, V20, P1307
[9]  
KULANDER KC, 1992, ATOMS INTENSE RAD FI
[10]   PHASE OF THE ATOMIC POLARIZATION IN HIGH-ORDER HARMONIC-GENERATION [J].
LEWENSTEIN, M ;
SALIERES, P ;
LHUILLIER, A .
PHYSICAL REVIEW A, 1995, 52 (06) :4747-4754