Ultrafast photodissociation of K-n=3 ... 9 clusters

被引：16

作者：

Ruff, A ^{[1
]}

Rutz, S ^{[1
]}

Schreiber, E ^{[1
]}

Woste, L ^{[1
]}

机构：

[1] FREE UNIV BERLIN,INST PHYS EXPTL,D-14195 BERLIN,GERMANY

来源：

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1996年 / 37卷 / 02期

关键词：

D O I：

10.1007/s004600050025

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

By means of femtosecond pump and probe technique we investigated the temporal evolution of the photodissociation of excited potassium clusters (3 less than or equal to n less than or equal to 9). For three different excitation energies E = 1.47 eV, 2.00 eV, and 2.94 eV we were able to measure the transient multiphoton ionization spectra. In the frame of a simple energy level model the photodissociation process could be analyzed. Fragmentation time constants are estimated to be cluster size- and energy-dependent in the range of 200 fs up to 10 ps. The results are compared with data received from similar experiments on Na-n clusters.

引用

页码：175 / 180

页数：6

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