npsm 새물리 New Physics : Sae Mulli

pISSN 0374-4914 eISSN 2289-0041
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Article

Research Paper

New Phys.: Sae Mulli 2021; 71: 667-672

Published online August 31, 2021 https://doi.org/10.3938/NPSM.71.667

Copyright © New Physics: Sae Mulli.

Results of the Gas Cell Development Using a fs Laser Micro-machining System

Hyunil Benjamin KIM, Kyungmin ROH, Venessa Ling Jen PHUNG, Keekon KANG, Hyyong SUK*

Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea

Correspondence to:hysuk@gist.ac.kr

Received: May 10, 2021; Revised: July 20, 2021; Accepted: July 20, 2021

Abstract

In this paper, we report the development results for a femtosecond (fs) laser machining system and a gas cell for laser wakefield acceleration research. The developed fs laser machining system consists of a mode-locked Ti:sapphire oscillator, a Ti:sapphire regenerative amplifier, a three-dimensional-moving stage, etc. The system is used to micro-machine a special-type gas cell, that will be used as a plasma source in laser-plasma acceleration research. The gas cell was designed following computational-fluid-dynamics (CFD) simulations, and the internal gas distribution in the gas cell was measured by using a Mach-Zehnder interferometer. In this paper, some of the development and research results for the laser micro-machining system and the gas cell are reported.

Keywords: Laser micro-machining, Computational-fluid-dynamics (CFD) simulation, Interferometer, Laser, Gas cell

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