광열고압 충격현상에 대한 예비 실험 = Preliminary Experiments of Laser Induced Shock Phenomena

다국어 초록 (Multilingual Abstract)

A high power laser beam focused on a small area accelerates a thin material that flies and hits other target material in which a shock wave may be induced. This laser induced shock experimental method is more repeatable and cheaper but worse than other experimental method using gas gun or other apparatus. An optical system including a phase zone plate reduces the interference and also makes the focused-beam-intensity distribution uniform. We wrote a computer code that calculates light ray traces. Using the code we designed and fabricated an optical system including a phase zone plate and improved the laser-beam uniformity. We introduce preliminary experimental results of laser induced shock of the samples such as aluminum and other materials.

참고문헌 (Reference)

1 김선철, "광열구동 비행체가속실험(I)" 국방과학연구소 2006

2 N.Ozaki, "Planar Shock Wave Generated by Uniform Irradiation from Two Overlapped Partially Coherent Laser Beams" 89 (89): 2571-2575, 2001

3 S. N. Luo, "Long Pulse Laser Driven Shock Wave Loading for Dynamic Materials Experiments" 700514-700516, 2008

4 F. F. Chen, "Introduction to Plasma Physics" Plenum Press 137-, 1974

5 D. Batani, "Design, Simulation, and Application of Phase Plates" 19 : 231-235, 2002