Vibrational population in femtosecond UV laser desorption of NO from NiO(100)

被引：15

作者：

Eichhorn, G ^{[1
]}

Richter, M ^{[1
]}

AlShamery, K ^{[1
]}

Zacharias, H ^{[1
]}

机构：

[1] RUHR UNIV BOCHUM,D-44780 BOCHUM,GERMANY

来源：

SURFACE SCIENCE | 1996年 / 368卷

关键词：

nickel oxides; nitrogen oxides; photon stimulated desorption (PSD); resonance enhanced multiphoton ionization mass spectroscopy (REMPI/MS);

D O I：

10.1016/S0039-6028(96)01030-8

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：

We have investigated the internal state populations of NO molecules desorbed from an epitaxial film NiO(100)/Ni(100) at 100 K. After desorption with a 550 fs pulse at lambda = 314 nm (h nu = 3.9 eV) the molecules have been detected using (1 + 1)-REMPI via the A(2) Sigma(+) (nu' = 0,1,2,3)<--X(2) Pi(nu '' = 0,1,2,3) gamma-band transitions. The vibrational states nu '' > 0 are highly populated approaching vibrational temperatures of 3800 K. The results are compared with the data obtained for the same system with nanosecond desorption pulses at h nu = 6.4 eV.

引用

页码：67 / 70

页数：4

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