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首页> 外文期刊>Optics Letters >Nonlinear imaging microscopy techniques as diagnostic tools for art conservation studies
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Nonlinear imaging microscopy techniques as diagnostic tools for art conservation studies

机译：非线性成像显微镜技术作为艺术保护研究的诊断工具

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摘要

We present results of the implementation of three-photon excitation fluorescence (3PEF) and third harmonic generation imaging measurements for the precise and nondestructive detection of natural and synthetic varnish layers, which are used for the surface protection of painted artifacts. For this purpose, we employ as an excitation source a compact femtosecond laser operating at 1028 nm. Two-dimensional images of the multilayer structures from different samples are depicted. The third harmonic signals show the interface between the different materials, when its refractive index mismatch is high enough. The depths of different layers of varnishes, presenting similar refractive index, are distinguishable with an axial resolution of approx1 (mu)m by employing 3PEF measurements.
机译：我们介绍了实现三光子激发荧光（3PEF）和三次谐波生成成像测量结果的结果，这些测量结果用于天然和合成清漆层的精确和无损检测，用于涂漆工件的表面保护。为此，我们采用工作在1028 nm的紧凑型飞秒激光器作为激发源。描绘了来自不同样品的多层结构的二维图像。当其折射率失配足够高时，三次谐波信号显示了不同材料之间的界面。表现出相似折射率的清漆不同层的深度可通过采用3PEF测量以大约1μm的轴向分辨率来区分。

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