scholarly journals Laser-induced plasma generation and evolution in a transient spray

2013 ◽  
Vol 22 (S1) ◽  
pp. A44 ◽  
Author(s):  
Nobuyuki Kawahara ◽  
Kazuya Tsuboi ◽  
Eiji Tomita
Keyword(s):  
Plasma Generation ◽  
Laser Induced Plasma

Line-Based Laser Induced Plasma Micro-Machining (L-LIPMM)

2013 ◽  
Author(s):  
Rajiv Malhotra ◽  
Ishan Saxena ◽  
Kornel Ehmann ◽  
Jian Cao
Keyword(s):  
Laser Ablation ◽  
Process Parameters ◽  
Ultrashort Pulse ◽  
Experimental Setup ◽  
Micro Machining ◽  
Ultrashort Pulse Laser ◽  
Plasma Generation ◽  
Laser Induced Plasma ◽  
Laser Micro Machining ◽  
Wide Range

Recently, the technique of Spot-based Laser Induced Plasma Micro-Machining (Spot-LIPMM) has been developed to address the limitations of conventional ultrashort pulse laser micro-machining. Its main advantages are adaptability to a wide range of materials and superior wall geometries. We propose a variation of the Spot-LIPMM process by creating line plasma instead of spot plasma, with the use of suitable optics. This paper describes the experimental setup used to create line plasma and the process used for micro-machining with L-LIPMM. Optics simulations are developed as a means of guiding the choice of optics to be used for line plasma generation and estimating the energy and shape of the plasma created. It is shown that this Line-based LIPMM (L-LIPMM) process is capable of micromachining channels at a much higher speed than conventional Spot-based laser ablation or spot-based LIPMM. Additionally, the effects of process parameters on machined geometry using L-LIPMM are discussed.

Laser-Induced Plasma Generation Device for Massively Parallel Delivery to Cell Nuclei

2017 ◽  
Vol 2017.8 (0) ◽  
pp. PN-31
Author(s):  
Keisuke Funahashi ◽  
Shin Sawai ◽  
Tuhin Santra ◽  
Moeto Nagai ◽  
Takayuki Shibata
Keyword(s):  
Massively Parallel ◽  
Cell Nuclei ◽  
Plasma Generation ◽  
Laser Induced Plasma

scholarly journals Laser-induced plasma generation of terahertz radiation using three incommensurate wavelengths

2018 ◽  
Vol 51 (14) ◽  
pp. 144004 ◽  
Author(s):  
Jacob D Bagley ◽  
Clayton D Moss ◽  
Shayne A Sorenson ◽  
Jeremy A Johnson
Keyword(s):  
Terahertz Radiation ◽  
Plasma Generation ◽  
Laser Induced Plasma

scholarly journals Dynamics of solvated electrons during femtosecond laser-induced plasma generation in water

2020 ◽  
Vol 102 (5) ◽  
Author(s):  
Noritaka Sakakibara ◽  
Tsuyohito Ito ◽  
Kazuo Terashima ◽  
Yukiya Hakuta ◽  
Eisuke Miura
Keyword(s):  
Femtosecond Laser ◽  
Solvated Electrons ◽  
Plasma Generation ◽  
Laser Induced Plasma

Laser-Induced Plasma Micromachining Process: Principles and Performance

2015 ◽  
Vol 3 (3) ◽  
Author(s):  
Kumar Pallav ◽  
Ishan Saxena ◽  
K. F. Ehmann
Keyword(s):  
Material Removal ◽  
Dielectric Breakdown ◽  
Dielectric Material ◽  
Experimental Conditions ◽  
Plasma Generation ◽  
Laser Induced Plasma ◽  
Wide Range ◽  
Matter Interaction ◽  
And Performance ◽  
Ultrashort Laser

Laser-induced plasma micromachining (LIP-MM) is a novel multimaterial and tool-less micromachining process. It utilizes tightly focused ultrashort laser irradiation to generate plasma through laser-induced dielectric breakdown in a dielectric material. The plasma facilitates material removal through plasma–matter interaction spot through vaporization and ablation. The paper introduces the LIP-MM process, discusses the underlying principles behind plasma generation and machining, and proves its feasibility by describing the experimental conditions under which plasma generation and machining occur. Upon successful commercial realization of this novel process, the key benefits envisaged are micromachining with better accuracy and better surface integrity, minimal subsurface damage, relatively smaller heat-affected zone (HAZ) and low roughness in a wide range of materials including those that are difficult to machine by some of the most successful micromachining processes such as micro-electrodischarge machining (EDM) and laser ablation.

Structural change of heavy water by laser-induced plasma generation

1999 ◽  
Vol 308 (5-6) ◽  
pp. 437-440 ◽  
Author(s):  
Hiroharu Yui ◽  
Masanori Fujinami ◽  
Takehiko Kitamori ◽  
Tsuguo Sawada
Keyword(s):  
Structural Change ◽  
Heavy Water ◽  
Plasma Generation ◽  
Laser Induced Plasma
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