The dissociation dynamics of diatomic molecules in intense laser fields

被引：66

作者：

Posthumus, JH ^{[1
]}

Giles, AJ ^{[1
]}

Thompson, M ^{[1
]}

Shaikh, W ^{[1
]}

Langley, AJ ^{[1
]}

Frasinski, LJ ^{[1
]}

Codling, K ^{[1
]}

机构：

[1] RUTHERFORD APPLETON LAB,CENT LASER FACIL,DIDCOT OX11 0QX,OXON,ENGLAND

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1996年 / 29卷 / 14期

关键词：

D O I：

10.1088/0953-4075/29/14/004

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have used interferometric techniques to show unambiguously that the fragment ion energies produced in the multielectron dissociative ionization (MEDI) of iodine vary with laser pulse rise time. A field ionization, Coulomb explosion model is found to reproduce MEDI data on I-2 remarkably well. The lack of features associated with post-dissociative ionization in the MEDI spectra of Cl-2 is explained in terms of low dissociation rates for the singly (and possibly doubly) charged parent ions. These results remove the need for the much discussed, but highly speculative, process of 'laser-induced stabilization'.

引用

页码：L525 / L531

页数：7

共 17 条

[1]

AMEERBEG A, 1996, OPT COMMUN, V122, P99

[2] SOFTENING OF THE H2+ MOLECULAR-BOND IN INTENSE LASER FIELDS [J].

BUCKSBAUM, PH ;

ZAVRIYEV, A ;

MULLER, HG ;

SCHUMACHER, DW .

PHYSICAL REVIEW LETTERS, 1990, 64 (16) :1883-1886

[3] ON THE FIELD-IONIZATION OF DIATOMIC-MOLECULES BY INTENSE LASER FIELDS [J].

CODLING, K ;

FRASINSKI, LJ ;

HATHERLY, PA .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1989, 22 (12) :L321-L327

[4] DISSOCIATIVE IONIZATION OF SMALL MOLECULES IN INTENSE LASER FIELDS [J].

CODLING, K ;

FRASINSKI, LJ .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1993, 26 (05) :783-809

[5]

CODLING K, 1989, SCIENCE, V246, P1029

[6] MULTIELECTRON DISSOCIATIVE IONIZATION OF DIATOMIC-MOLECULES IN AN INTENSE FEMTOSECOND LASER FIELD [J].

CORNAGGIA, C ;

LAVANCIER, J ;

NORMAND, D ;

MORELLEC, J ;

AGOSTINI, P ;

CHAMBARET, JP ;

ANTONETTI, A .

PHYSICAL REVIEW A, 1991, 44 (07) :4499-4505

[7]

GILES AJ, 1994, OPT COMMUN, V118, P537

[8] THE MULTIELECTRON DISSOCIATIVE IONIZATION OF MOLECULAR-IODINE IN INTENSE LASER FIELDS [J].

HATHERLY, PA ;

STANKIEWICZ, M ;

CODLING, K ;

FRASINSKI, LJ ;

CROSS, GM .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1994, 27 (14) :2993-3003

[9] HIGH-BRIGHTNESS FEMTOSECOND LASER USING TITANIUM SAPPHIRE TECHNOLOGY AND AMPLIFICATION IN DYES [J].

LANGLEY, AJ ;

NOAD, WJ ;

ROSS, IN ;

SHAIKH, W .

APPLIED OPTICS, 1994, 33 (18) :3875-3880

[10] LASER-INDUCED MOLECULAR ALIGNMENT PROBED BY A DOUBLE-PULSE EXPERIMENT [J].

NORMAND, D ;

LOMPRE, LA ;

CORNAGGIA, C .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1992, 25 (20) :L497-L503

← 1 2 →