Quadrupole mass spectrometry and time-of-flight analysis of ions resulting from 532nm pulsed laser ablation of Ni, Al, and ZnO targets

2008 ◽  
Vol 103 (9) ◽  
pp. 093301 ◽  
Author(s):  
Rebecca S. Sage ◽  
Ute B. Cappel ◽  
Michael N. R. Ashfold ◽  
Nicholas R. Walker
1998 ◽  
Vol 127-129 ◽  
pp. 988-993 ◽  
Author(s):  
M.C Kelly ◽  
G.G Gomlak ◽  
V.G Panayotov ◽  
C Cresson ◽  
J Rodney ◽  
...  

2003 ◽  
Vol 39 (2) ◽  
pp. 179-190 ◽  
Author(s):  
X. Wang ◽  
S. Amoruso ◽  
M. Armenante ◽  
A. Boselli ◽  
R. Bruzzese ◽  
...  

1999 ◽  
Vol 18 (3) ◽  
pp. 99-109 ◽  
Author(s):  
Yongxin Tang ◽  
Zhenhui Han ◽  
Qizong Qin

Pulsed laser ablation of TiO2 at 355 nm and 532 nm has been investigated using an angleand time-resolved quadrupole mass spectrometric technique. The major ablated species include O (m/e = 16), O2 (m/e = 32), Ti (m/e = 48), TiO (m/e = 64) and TiO2 (m/e = 80). The time-of-flight (TOF) spectra of ablated species are measured for the ionic and neutral ablated species, and they can be fitted by a Maxwell – Boltzmann (M – B) distribution with a center-of-mass velocity. The measured angular distributions of the ionic species (O+ and Ti+) and the neutral species (O and Ti) can be fitted with cos⁡nθ and a cos⁡θ + (1−a)cos⁡nθ, respectively. In addition, a continuous wave oxygen molecular beam is introduced into the ablated plume, and the enhancement of the signal intensities of TiO is observed. It implies that the ablated Ti atoms/ions species can react with ambient oxygen molecules in the gas phase. In the meanwhile, the physicochemical mechanism of pulsed laser ablation of TiO2 is discussed.


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