Electrical characterization of carbon plasma generated by excimer laser ablation of graphite

This work has been undertaken to study the microfluidic chip made by the excimer laser ablation. A Kind of Micro electrophoresis chip, Micro polymer chain reaction (PCR) and combined with electrochemical detection and micro blood separator are made using the commercial Polyimide film (Kapton from Dupont). The surface characterization of the excimer-ablated polymide is studied by using the Scanning Electron Microscopy (SEM), Atomic Force Microscope (AFM) and X-ray photoelectronic spectroscopy (XPS). The surface roughness is also measured by white light interference microscope (Wyco NT8000, Vecco. Com, USA). A kind of heat transfer equation is also given in this paper.

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Characterization of micromachining processes during KrF excimer laser ablation of TiNi shape memory alloy thin sheets and films

Smart Materials and Structures ◽

10.1088/0964-1726/11/5/313 ◽

2002 ◽

Vol 11 (5) ◽

pp. 708-714 ◽

Cited By ~ 11

Author(s):

S T Davies ◽

E C Harvey ◽

H Jin ◽

J P Hayes ◽

M K Ghantasala ◽

...

Keyword(s):

Laser Ablation ◽

Shape Memory Alloy ◽

Shape Memory ◽

Excimer Laser ◽

Thin Sheets ◽

Excimer Laser Ablation ◽

Krf Excimer Laser

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Fractal Method for Modeling the Peculiar Dynamics of Transient Carbon Plasma Generated by Excimer Laser Ablation in Vacuum

Complexity ◽

10.1155/2018/1814082 ◽

2018 ◽

Vol 2018 ◽

pp. 1-8 ◽

Cited By ~ 1

Author(s):

C. Ursu ◽

P. Nica ◽

C. Focsa ◽

M. Agop

Keyword(s):

Laser Ablation ◽

Excimer Laser ◽

Fast Time ◽

Fractal Method ◽

Fractal Approach ◽

Excimer Laser Ablation ◽

Fractal Space ◽

Transient Plasma ◽

Nonlinear Solutions ◽

Carbon Plasma

Carbon plasmas generated by excimer laser ablation are often applied for deposition (in vacuum or under controlled atmosphere) of high-technological interest nanostructures and thin films. For specific excimer irradiation conditions, these transient plasmas can exhibit peculiar behaviors when probed by fast time- and space-resolved optical and electrical methods. We propose here a fractal approach to simulate this peculiar dynamics. In our model, the complexity of the interactions between the transient plasma particles (in the Euclidean space) is substituted by the nondifferentiability (fractality) of the motion curves of the same particles, but in a fractal space. For plane symmetry and particular boundary conditions, stationary geodesic equations at a fractal scale resolution give a fractal velocity field with components expressed by means of nonlinear solutions (soliton type, kink type, etc.). The theoretical model successfully reproduces the (surprising) formation of V-like radiating plasma structures (consisting of two lateral arms of high optical emissivity and a fast-expanding central part of low emissivity) experimentally observed.

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