Plasma plumes produced by laser ablation of Al with single and double pulsed schemes
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Author(s)
Smijesh, N
Rao, Kavya H
Chetty, D
Litvinyuk, I
Sang, RT
Year published
2018
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We generated and characterized plasma with single and double picosecond laser pulses to study the plume dynamics and to control the plasma properties. The double pulse scheme was found to be superior for generating a homogeneous plasma. Lateral expansion was prominent in irradiation schemes wherein the energy in the first pulse is lower than or equal to that of the second pulse. The velocities of the fast and slow species were found to be nearly equal with the emission counts corresponding to slow species being larger for the single pulse compared to the double pulse.We generated and characterized plasma with single and double picosecond laser pulses to study the plume dynamics and to control the plasma properties. The double pulse scheme was found to be superior for generating a homogeneous plasma. Lateral expansion was prominent in irradiation schemes wherein the energy in the first pulse is lower than or equal to that of the second pulse. The velocities of the fast and slow species were found to be nearly equal with the emission counts corresponding to slow species being larger for the single pulse compared to the double pulse.
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Journal Title
Optics Letters
Volume
43
Issue
24
Copyright Statement
© Optical Society of America, 2018. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
Subject
Atomic, molecular and optical physics
Atomic, molecular and optical physics not elsewhere classified
Quantum physics
Communications engineering
Electronics, sensors and digital hardware