IR-REMPI spectroscopy for thermometry of C60

被引:11
作者
van Heijnsbergen, D
von Helden, G
Sartakov, B
Meijer, G
机构
[1] EURATOM, FOM, Inst Plasma Phys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands
[2] Catholic Univ Nijmegen, Dept Mol & Laser Phys, NL-6525 ED Nijmegen, Netherlands
[3] Russian Acad Sci, Inst Gen Phys, Moscow 117942, Russia
关键词
D O I
10.1016/S0009-2614(00)00266-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Gas-phase C-60 molecules are excited with a 30 ps 266 nm Nd:YAG laser, followed by a train of high-power infrared (IR) sub-picosecond pulses from a free electron laser (FEL), which resonantly heats the molecules up to internal energies at which they efficiently undergo delayed ionization. By tuning the IR laser wavelength, IR-REMPI spectra are obtained. These are compared to simulations, giving detailed insight into the influence of UV pre-excitation on the IR laser ionization process of C-60 molecules. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:508 / 513
页数:6
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