Nonadiabatic effects in high-harmonic generation with ultrashort pulses

被引:116
作者
Christov, IP [1 ]
Zhou, J [1 ]
Peatross, J [1 ]
Rundquist, A [1 ]
Murnane, MM [1 ]
Kapteyn, HC [1 ]
机构
[1] UNIV MICHIGAN,CTR ULTRAFAST OPT SCI,ANN ARBOR,MI 48109
关键词
D O I
10.1103/PhysRevLett.77.1743
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
High-harmonic generation using ultrashort laser pulses with pulse durations 25 to 200 fs is studied theoretically and experimentally. We observe that the harmonic spectrum of argon taken with 25 fs laser pulses contains harmonics up to 20 orders higher than for 100 fs laser pulses with the same intensity. We show that this increase in harmonics is because the atom survives to higher laser intensities, due in part to the nonadiabatic response of the atomic dipole to the fast rise time of our pulse.
引用
收藏
页码:1743 / 1746
页数:4
相关论文
共 21 条
  • [1] AMMOSOV MV, 1986, ZH EKSP TEOR FIZ, V64, P1191
  • [2] TUNNELING IONIZATION OF NOBLE-GASES IN A HIGH-INTENSITY LASER FIELD
    AUGST, S
    STRICKLAND, D
    MEYERHOFER, DD
    CHIN, SL
    EBERLY, JH
    [J]. PHYSICAL REVIEW LETTERS, 1989, 63 (20) : 2212 - 2215
  • [3] LASER IONIZATION OF NOBLE-GASES BY COULOMB-BARRIER SUPPRESSION
    AUGST, S
    MEYERHOFER, DD
    STRICKLAND, D
    CHIN, SL
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1991, 8 (04) : 858 - 867
  • [4] TI-SAPPHIRE AMPLIFIER PRODUCING MILLIJOULE-LEVEL, 21-FS PULSES AT 1 KHZ
    BACKUS, S
    PEATROSS, J
    HUANG, CP
    MURNANE, MM
    KAPTEYN, HC
    [J]. OPTICS LETTERS, 1995, 20 (19) : 2000 - 2002
  • [5] HIGHER-HARMONIC PRODUCTION IN A MODEL ATOM WITH SHORT-RANGE POTENTIAL
    BECKER, W
    LONG, S
    MCIVER, JK
    [J]. PHYSICAL REVIEW A, 1990, 41 (07): : 4112 - 4115
  • [6] PLASMA PERSPECTIVE ON STRONG-FIELD MULTIPHOTON IONIZATION
    CORKUM, PB
    [J]. PHYSICAL REVIEW LETTERS, 1993, 71 (13) : 1994 - 1997
  • [7] ADIABATIC STABILIZATION AGAINST PHOTOIONIZATION - AN EXPERIMENTAL-STUDY
    DEBOER, MP
    HOOGENRAAD, JH
    VRIJEN, RB
    CONSTANTINESCU, RC
    NOORDAM, LD
    MULLER, HG
    [J]. PHYSICAL REVIEW A, 1994, 50 (05): : 4085 - 4098
  • [8] HIGH-ORDER HARMONIC PRODUCTION IN MULTIPHOTON IONIZATION
    EBERLY, JH
    SU, Q
    JAVANAINEN, J
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1989, 6 (07) : 1289 - 1298
  • [9] SHORT-PULSE MODEL-ATOM STUDIES OF IONIZATION IN INTENSE LASER FIELDS
    GELTMAN, S
    [J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1994, 27 (08) : 1497 - 1514
  • [10] Keldysh L. V., 1964, ZH EKSP TEOR FIZ, V47, P1945, DOI DOI 10.1088/0022-3700/6/4/011