Collective behavior of silver plasma during pulsed laser ablation
作者： I M Dildar , S Rehman , M Khaleeq-ur-Rahman , K A Bhatti , A Shuaib
DOI: 10.1088/1054-660X/25/7/076102
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摘要: The present work reports an electrical investigation of silver plasma using a self-fabricated Langmuir probe in air and under low vacuum (~10–3 torr). A target was irradiated with Q-switched Nd:YAG laser the wavelength 1.064 µm, energy 10 mJ, pulse duration 9–14 ns power 1.1 MW. collective behavior plume is studied as diagnostic technique. By applying different positive negative voltages to probe, respective signals are collected on four channels digital storage oscilloscope having frequency 500 MHz. An I-V curve helps measure electron temperature density directly frequency, response time, Debye length number particles 'Debye's sphere' indirectly theory mathematical formulas. floating potential measured for induced vacuum, following plasma.
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