Diagnostic Study of an Fe-Ni Alloy Plasma Generated by the Fundamental (1064 nm) and Second (532 nm) Harmonics of an Nd: YAG Laser

M. HANIF; M. SALIK; M. A. BAIG

doi:10.1088/1009-0630/15/5/01

Plasma Science and Technology > 2013 > 15(5): 397-402. > DOI: 10.1088/1009-0630/15/5/01

M. HANIF, M. SALIK, M. A. BAIG. Diagnostic Study of an Fe-Ni Alloy Plasma Generated by the Fundamental (1064 nm) and Second (532 nm) Harmonics of an Nd: YAG Laser[J]. Plasma Science and Technology, 2013, 15(5): 397-402. DOI: 10.1088/1009-0630/15/5/01

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Diagnostic Study of an Fe-Ni Alloy Plasma Generated by the Fundamental (1064 nm) and Second (532 nm) Harmonics of an Nd: YAG Laser

1 MCS, National University of Sciences & Technology (NUST), Rawalpindi, Pakistan 2 School of Science, Beijing Jiaotong University, Beijing, China 3 National Center for Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan

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Received Date: February 26, 2012

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Abstract

Abstract

We studied the spatial evolution of the Fe-Ni plasma generated by the fundamental (1064 nm) and second (532 nm) harmonics of a Q-switched Nd: YAG laser. The experimentally observed line profiles of the neutral iron (Fe I) have been used to extract the plasma temperature (T_e) using the Boltzmann plot method, whereas the electron number density (N_e) has been deter- mined from the Stark broadening. In addition, we studied the spatial behavior of T_e and Ne with the variation of laser energy for iron plasma by placing the target material (iron-nickel alloy) in air at atmospheric pressure for both modes of the Nd: YAG laser.
- iron plasma,
- laser ablation,
- electron temperature,
- electron number density

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