New spectroscopic tool for cluster science: Nonexponential laser fluence dependence of photofragmentation

被引：27

作者：

Haberland, H

vonIssendorff, B

机构：

[1] Fakultät für Physik, Universität Freiburg, Freiburg, D-79104

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.76.1445

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The photodestruction of Hg-7(++) and Hg-9(++) has been measured as a function of photon flux. A polarization dependent deviation from a purely exponential intensity decrease was observed in both cases. This effect, which in essence is an alignment phenomenon, can be used to characterize dissociating electronic transitions of molecules and clusters. For the clusters studied it is due to a one-dimensional transition dipole moment having a fixed direction within the cluster. The effect is expected to play a role in many photoabsorption experiments where molecule/cluster ionization or fragmentation is studied under high photon fluxes.

引用

收藏

页码：1445 / 1448

页数：4

相关论文

共 16 条

[1] PROBING THE TRANSITION FROM VANDERWAALS TO METALLIC MERCURY CLUSTERS [J].

BRECHIGNAC, C ;

BROYER, M ;

CAHUZAC, P ;

DELACRETAZ, G ;

LABASTIE, P ;

WOLF, JP ;

WOSTE, L .

PHYSICAL REVIEW LETTERS, 1988, 60 (04) :275-278

[2] ALIGNMENT OF H2 + MOLECULAR ION BY SELECTIVE PHOTODISSOCIATION .1. [J].

DEHMELT, HG ;

JEFFERTS, KB .

PHYSICAL REVIEW, 1962, 125 (04) :1318-&

[3] GROUND-STATE AND RESPONSE PROPERTIES OF MERCURY CLUSTERS [J].

HABERLAND, H ;

VONISSENDORFF, B ;

JI, YF ;

KOLAR, T ;

THANNER, G .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1993, 26 (1-4) :8-12

[4] ELECTRONIC AND GEOMETRIC STRUCTURE OF ARN+ AND XEN+ CLUSTERS - THE SOLVATION OF RARE-GAS IONS BY THEIR PARENT ATOMS [J].

HABERLAND, H ;

VONISSENDORFF, B ;

KOLAR, T ;

KORNMEIER, H ;

LUDEWIGT, C ;

RISCH, A .

PHYSICAL REVIEW LETTERS, 1991, 67 (23) :3290-3293

[5] TRANSITION TO PLASMON-LIKE ABSORPTION IN SMALL HG CLUSTERS [J].

HABERLAND, H ;

VONISSENDORFF, B ;

JI, YF ;

KOLAR, T .

PHYSICAL REVIEW LETTERS, 1992, 69 (22) :3212-3215

[6] A DOUBLE TRIPLE TIME-OF-FLIGHT MASS-SPECTROMETER FOR THE STUDY OF PHOTOPROCESSES IN CLUSTERS, OR HOW TO PRODUCE CLUSTER IONS WITH DIFFERENT TEMPERATURES [J].

HABERLAND, H ;

KORNMEIER, H ;

LUDEWIGT, C ;

RISCH, A ;

SCHMIDT, M .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1991, 62 (11) :2621-2625

[7]

HABERLAND H, 1994, SPRINGER TRACTS CHEM, V52

[8]

HABERLAND H, 1995, SPRINGER TRACTS CHEM, V56

[9]

HABERLAND H, IN PRESS

[10] ON THE TRANSITION FROM VANDERWAALS BONDING TO METALLIC BONDING IN HG-CLUSTERS AS A FUNCTION OF CLUSTER SIZE [J].

PASTOR, GM ;

STAMPFLI, P ;

BENNEMANN, KH .

PHYSICA SCRIPTA, 1988, 38 (04) :623-626