Observation of laser assisted photoelectric effect and femtosecond high order harmonic radiation

被引：281

作者：

Glover, TE ^{[1
]}

Schoenlein, RW ^{[1
]}

Chin, AH ^{[1
]}

Shank, CV ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.76.2468

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first observation of laser-induced free-free transitions in the primacy photoelectron spectra of gaseous helium ionized by ultrashort soft x-ray pulses. Measured transition amplitudes are well described by projecting the initial electronic state onto a Volkov wavefunction. Additionally, we report the first direct measurements on the temporal duration of femtosecond high order harmonic radiation. The harmonic pulse duration is observed to exhibit strong dependencies upon both laser intensity and position of the generating medium relative to the laser focus.

引用

收藏

页码：2468 / 2471

页数：4

相关论文

共 12 条

[1]

AMMOSOV MV, 1986, ZH EKSP TEOR FIZ, V64, P1191

[2] TARGET DRESSING EFFECTS IN LASER-ASSISTED X-RAY PHOTOIONIZATION [J].

CIONGA, A ;

FLORESCU, V ;

MAQUET, A ;

TAIEB, R .

PHYSICAL REVIEW A, 1993, 47 (03) :1830-1840

[3] STUDIES OF TIME-RESOLVED HARMONIC-GENERATION IN INTENSE LASER FIELDS IN XENON [J].

FALDON, ME ;

HUTCHINSON, MHR ;

MARANGOS, JP ;

MUFFETT, JE ;

SMITH, RA ;

TISCH, JWG ;

WAHLSTROM, CG .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1992, 9 (11) :2094-2099

[4] INVESTIGATIONS OF ABOVE-THRESHOLD IONIZATION USING SUBPICOSECOND LASER-PULSES [J].

FREEMAN, RR ;

BUCKSBAUM, PH .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1991, 24 (02) :325-347

[5] CALCULATIONS OF HIGH-ORDER HARMONIC-GENERATION PROCESSES IN XENON AT 1064 NM [J].

LHUILLIER, A ;

BALCOU, P ;

CANDEL, S ;

SCHAFER, KJ ;

KULANDER, KC .

PHYSICAL REVIEW A, 1992, 46 (05) :2778-2790

[6] DRESSING OF CONTINUUM STATES AFTER MPI OF XE IN A 2-COLOR EXPERIMENT [J].

MULLER, HG ;

VANDENHEUVELL, HBV ;

VANDERWIEL, MJ .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1986, 19 (21) :L733-L739

[7] High-order harmonics of 248.6-nm KrF laser from helium and neon ions [J].

Preston, SG ;

Sanpera, A ;

Zepf, M ;

Blyth, WJ ;

Smith, CG ;

Wark, JS ;

Key, MH ;

Burnett, K ;

Nakai, M ;

Neely, D ;

Offenberger, AA .

PHYSICAL REVIEW A, 1996, 53 (01) :R31-R34

[8] EFFECT OF AN INTENSE ELECTROMAGNETIC-FIELD ON A WEAKLY BOUND SYSTEM [J].

REISS, HR .

PHYSICAL REVIEW A, 1980, 22 (05) :1786-1813

[9] COHERENCE CONTROL OF HIGH-ORDER HARMONICS [J].

SALIERES, P ;

LHUILLIER, A ;

LEWENSTEIN, M .

PHYSICAL REVIEW LETTERS, 1995, 74 (19) :3776-3779

[10] OBSERVATION OF LASER-ASSISTED ANGER DECAY IN ARGON [J].

SCHINS, JM ;

BREGER, P ;

AGOSTINI, P ;

CONSTANTINESCU, RC ;

MULLER, HG ;

GRILLON, G ;

ANTONETTI, A ;

MYSYROWICZ, A .

PHYSICAL REVIEW LETTERS, 1994, 73 (16) :2180-2183