레이저의 피부 흡수에 의해 발생하는 축 방향 변위의 펄스 폭 의존성에 관한 연구
Pulse-width Dependence of Axial Displacement Generated by Laser Absorption in Human Tissues
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In this study, simulations of the axial displacement generated in human tissues by pulsed laser absorption were executed. The temporal width of the laser pulse was varied from 1 ns to 1000 ns, while the pulse energy and the beam diameter were set to 9.6 mJ and 0.5 mm, respectively. It was found that the magnitude of the axial displacement decreased as the laser pulse width increased. When the laser pulse width was ~500 ns, the magnitude of the axial displacement dropped to half of that for the 1-ns pulse width. The magnitude of the axial stress was also examined and found to be rapidly reduced with the increase of the laser pulse width.
Abstract
In this study, simulations of the axial displacement generated in human tissues by pulsed laser absorption were executed. The temporal width of the laser pulse was varied from 1 ns to 1000 ns, while the pulse energy and the beam diameter were set to 9.6 mJ and 0.5 mm, respectively. It was found that the magnitude of the axial displacement decreased as the laser pulse width increased. When the laser pulse width was ~500 ns, the magnitude of the axial displacement dropped to half of that for the 1-ns pulse width. The magnitude of the axial stress was also examined and found to be rapidly reduced with the increase of the laser pulse width.
참고문헌 (14)
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