| Preliminary Experiments of Laser Induced Shock Phenomena |
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Sun-Cheol Kim, Yoon-Soo Choi, Chung-Kyu Han, Kyung-Ho Cho, Hyoung-Won Kim |
| 광열고압 충격현상에 대한 예비 실험 |
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김선철, 최윤수, 한충규, 조경호, 김형원 |
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국방과학연구소 |
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| Abstract |
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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. |
| Key Words:
Laser, Shock, Phase Zone Plate |
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