Optical probe investigation of laser ablated carbon plasma plume in nitrogen ambient

• DOI: 10.1063/1.4846897
• Publication Date: 2013-12-13T01:50:25Z
• Authors: Ravi Pratap Singh; Shyam L. Gupta; Raj K. Thareja
• Keywords: Shadowgraphy; Laser Ablation; Carbon fibers

We report the study of carbon plasma produced using 1064 nm laser in nitrogen ambient at atmospheric pressure 2-dimensional fast imaging ablated plume, optical emission spectroscopy, and probe 532 for interferometry shadowgraphy. The dominance C2 CN molecules over ionic species later stages expanding plume is reported. observed ring structure shadowgrams change direction fringe shift from positive to negative recorded interferograms are correlated with relative abundance different as function time delay respect ablating pulse. An agreement onset formation clusters/atomic or low diagnostic techniques has been