Single-pulse two-threshold laser ablation of historical paper

被引：6
|
作者：
Balakhnina, I. A.
Brandt, N. N. [1 ]
Chikishev, A. Yu
Shpachenko, I. G.
机构：
[1] Lomonosov Moscow State Univ, Fac Phys, Bldg 2,1 Leninskie Gory, Moscow 119991, Russia
来源：
LASER PHYSICS LETTERS | 2018年 / 15卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
laser ablation; ablation threshold; historical paper; paper composition; paper discoloration; INDUCED BREAKDOWN SPECTROSCOPY; LQS NDYAG LASER; LA-ICP-MS; POLYMERS; REMOVAL; SAMPLES;
D O I：
10.1088/1612-202X/aab94e
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Ablation thresholds of historical paper are determined with the aid of direct measurements of the amount of ablated particles. Curves of the amount of ablated particles versus laser fluence clearly show two ablation thresholds. Such an ablation scenario can be due to the presence of impurities in and porosity of paper. Paper surface is not damaged when the fluence increases from the first to second threshold but material removal is detected. Ablated particles are collected and can be analyzed using, for example, Raman microspectroscopy. When the fluence exceeds the second threshold, paper is damaged and cellulose fibers are ruptured.
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收藏
页数：6
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