Emission properties of laser ablation of SnO2: Sb transparent conducting film and KTiOPO4 crystal

✍ Scribed by Minju Ying; Yueyuan Xia; Yuming Sun; Yuchen Ma; Mingwen Zhao; Xiaotao Hao; Xiangdong Liu

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 270 KB
• Volume: 35
• Category: Article
• ISSN: 0030-3992
• DOI: 10.1016/s0030-3992(03)00061-6

✦ Synopsis

Optical emission spectra of Nd:YAG laser ablation of KTiOPO4 (KTP) crystal and SnO2:Sb transparent conducting thin ÿlm were recorded and analyzed in vacuum and in air. The integral intensities of spectral lines from laser-ablated KTP crystal were obtained as functions of distance from the target surface and laser power density in vacuum and in air. The ambient gas e ects on pulsed laser ablation of target were discussed. We also performed laser ablation of SnO2:Sb transparent conducting thin ÿlm in air and the electron temperature and full-width at half-maximum (FWHM) of atomic and ionic spectral lines in the plasma were quantiÿed using Boltzmann plot method and Lorentzian ÿt, respectively. Integral intensities of atomic and ionic Sn spectral lines were also obtained as functions of distance from the target surface and laser irradiance. The intensity ratio of ionic and atomic Sn spectral lines as a function of laser power density was got which gives some information about the variation of ionization ratio with laser irradiance in the plasma produced by high-power laser.