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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Femtosecond laser structuring and optical properties of a silver and zinc phosphate glass
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Femtosecond laser structuring and optical properties of a silver and zinc phosphate glass

机译：飞秒激光的结构和银和锌磷酸盐玻璃的光学特性

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摘要

We report on the micro- and nano-structuring of a silver-containing zinc phosphate glass under high repetition rate femtosecond near-infrared laser exposure. Luminescent silver clusters are locally formed thanks to multi-photon absorption. The excitation mechanisms in the glass are investigated with a transient absorption pump-probe experiment. The free electron density of the femtosecond-laser-induced ionized material for irradiation conditions leading to structural modifications is measured. We show that the involved photo-excitation process in the laser-glass interaction is a four-photon absorption and the measured free electron density is on the order of 10 ~(17) cm~(- 3), four orders of magnitude below the critical electron density. The luminescence properties of these resulting structures have been investigated. Emission spectra are compared with those collected after different irradiations (γ and electron beams). The migration of silver species has been assigned to be responsible for local modifications and selective acid etching behavior of the structure.
机译：我们报告了高重复率飞秒近红外激光曝光下的含银磷酸锌玻璃的微观和纳米结构。由于多光子吸收，局部形成了发光的银团簇。用瞬态吸收泵浦探针实验研究了玻璃中的激发机理。测量了飞秒激光诱导的电离材料在辐照条件下导致结构改性的自由电子密度。我们表明，在激光-玻璃相互作用中涉及的光激发过程是四光子吸收，并且测得的自由电子密度为10〜（17）cm〜（-3）的量级，比电子低4个数量级。临界电子密度。已经研究了这些所得结构的发光性质。将发射光谱与不同辐照（γ和电子束）后收集的光谱进行比较。银的迁移已被指定负责结构的局部修饰和选择性酸蚀行为。

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