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극초단 레이저를 이용한 기공성 세라믹 드릴링시 발생하는 레이저빔 산란해석

Scattering analysis of laser beam drilling in porous ceramic materials

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Laser beam can be either absorbed or scattered in porous ceramic material and its optical characteristics need to be understood. Electro-magnetic multiphysics software was used to simulate and understand the actual scattering phenomena in porous materials. 785nm femtosecond laser was irradiated on the surface of ceramic material and strong scattering occurred in drilling process. The computer results showed the scattering and absorption phenomena of Aluminum oxide were a mixture of dielectric and metallic material. The computer simulation showed the laser beam was almost extinct at the aspect rate of 5 approximately.

Abstract

1. 서론

2. 본론

3. 결과

4. 고찰 및 결론

5. 후기

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