Laser plasma induce damage on burnt paper
High intensity laser pulse can cause damage on material when brought to focus. In this paper the effects of laser induce damage on burnt paper is reported. A Nd:YAG solid-state laser was used as a laser source. The peak power of the laser pulse was varied from 21.61 MW to 22.25 MW. Two-lens techniqu...
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| 在线阅读: | http://eprints.uthm.edu.my/2795/ http://eprints.uthm.edu.my/2795/1/85__Ahmad_Hadi_Ali.pdf |
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| 总结: | High intensity laser pulse can cause damage on material when brought to focus. In this paper the effects of laser induce damage on burnt paper
is reported. A Nd:YAG solid-state laser was used as a laser source. The peak power of the laser pulse was varied from 21.61 MW to 22.25 MW.
Two-lens technique is used in order to focus the laser beam. Burnt paper was placed at the focal region. The focused laser beam generates an
optical breakdown accompanied with plasma formation, thus induce damage on the burnt paper. For viewing purposes, a photomicroscope
model Q-520 LEICA was used to magnify the damage. The image was processed and analyzed with the help Matrox Inspector version 2.1
software. The results show that the laser plasma induces quite a symmetrical and uniform configuration of damage. In addition, observation
result shows that the e maximum damage arear was measured as 0.150 ± 0.008 mm at peak power of 21.93 MW. |
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