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

共 46 条

[1] ELECTRONIC VIBRATIONAL EXCITATIONS OF AROMATIC-MOLECULES IN LARGE ARGON CLUSTERS [J].

AMIRAV, A ;

EVEN, U ;

JORTNER, J .

JOURNAL OF PHYSICAL CHEMISTRY, 1982, 86 (17) :3345-3358

[2]

[Anonymous], 1994, SPRINGER SERIES CHEM

[3] FEMTOSECOND 2-PHOTON IONIZATION SPECTROSCOPY OF THE B-STATE OF NA3 CLUSTERS [J].

BAUMERT, T ;

THALWEISER, R ;

GERBER, G .

CHEMICAL PHYSICS LETTERS, 1993, 209 (1-2) :29-34

[4] FEMTOSECOND TIME-RESOLVED MOLECULAR MULTIPHOTON IONIZATION - THE NA2 SYSTEM [J].

BAUMERT, T ;

GROSSER, M ;

THALWEISER, R ;

GERBER, G .

PHYSICAL REVIEW LETTERS, 1991, 67 (27) :3753-3756

[5] FEMTOSECOND PROBING OF SODIUM CLUSTER ION NAN + FRAGMENTATION [J].

BAUMERT, T ;

ROTTGERMANN, C ;

ROTHENFUSSER, C ;

THALWEISER, R ;

WEISS, V ;

GERBER, G .

PHYSICAL REVIEW LETTERS, 1992, 69 (10) :1512-1515

[6] NATURE OF EXCITATIONS IN SMALL ALKALI-METAL AND OTHER MIXED CLUSTERS [J].

BONACICKOUTECKY, V ;

FANTUCCI, P ;

FUCHS, C ;

KOUTECKY, J ;

PITTNER, J .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1993, 26 (1-4) :17-22

[7] QUANTUM-CHEMISTRY OF SMALL CLUSTERS OF ELEMENTS OF GROUP-IA, GROUP-IB, AND GROUP-IIA - FUNDAMENTAL-CONCEPTS, PREDICTIONS, AND INTERPRETATION OF EXPERIMENTS [J].

BONACICKOUTECKY, V ;

FANTUCCI, P ;

KOUTECKY, J .

CHEMICAL REVIEWS, 1991, 91 (05) :1035-1108

[8] AB-INITIO PREDICTIONS OF OPTICALLY ALLOWED TRANSITIONS IN NA-20 - NATURE OF EXCITATIONS AND INFLUENCE OF GEOMETRY [J].

BONACICKOUTECKY, V ;

FANTUCCI, P ;

FUCHS, C ;

GATTI, C ;

PITTNER, J ;

POLEZZO, S .

CHEMICAL PHYSICS LETTERS, 1993, 213 (5-6) :522-526

[9] INTERPRETATION OF THE ABSORPTION-SPECTRUM OF NA8 [J].

BONACICKOUTECKY, V ;

KAPPES, MM ;

FANTUCCI, P ;

KOUTECKY, J .

CHEMICAL PHYSICS LETTERS, 1990, 170 (01) :26-34

[10] QUANTUM MOLECULAR INTERPRETATION OF THE ABSORPTION-SPECTRA OF NA5, NA6, AND NA7 CLUSTERS [J].

BONACICKOUTECKY, V ;

PITTNER, J ;

SCHEUCH, C ;

GUEST, MF ;

KOUTECKY, J .

JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (11) :7938-7958

← 1 2 3 4 5 →