ERBIUM LASER ABLATION - THE EFFECT OF DYNAMIC OPTICAL-PROPERTIES

被引：59

作者：

CUMMINGS, JP

WALSH, JT

机构：

[1] Biomedical Engineering Department, Northwestern University, Evanston

来源：

APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 16期

关键词：

D O I：

10.1063/1.109512

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ablation characteristics of Q-switched Er:YAG (lambda = 2.94 mum) and Er:YSGG (lambda = 2.79 mum) lasers have been compared. For equivalent fluences per pulse, the Er:YAG laser radiation cuts deeper craters into a tissue phantom than the Er:YSGG laser radiation. The Er:YAG laser irradiation created lower plume velocities than Er:YSGG laser irradiation. The data have been interpreted in terms of a dynamically changing absorption coefficient model and suggest that, in contradistinction to low-intensity water absorption spectra, the effective absorption coefficient during ablation is greater at 2.79 than at 2.94 mum.

引用

页码：1988 / 1990

页数：3

共 18 条

[1]

BREGUET J, 1990, IEEE J QUANTUM ELECT, V26, P488

[2]

CUMMINGS JP, 1992, SPIE P, V1646, P242

[3] INFRA-RED ABSORPTION OF HDO IN WATER AT HIGH PRESSURES AND TEMPERATURES [J].