作为低熔浸液介质的Ge7Se93硫系玻璃近红外飞秒激光打标的非线性光学性质

IF 1.3 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY JETP Letters Pub Date : 2025-02-21 DOI:10.1134/S0021364024604652

P. P. Pakholchuk, N. A. Smirnov, N. I. Busleev, D. A. Pomazkin, V. G. Vins, S. I. Kudryashov, V. S. Shiryaev

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引用次数: 0

摘要

研究了波长为1.55 μm的Ge7Se93硫系玻璃固体浸没层对金刚石进行飞秒激光结构微修饰（微标记）的可能性。测量到Ge7Se93的双光子吸收系数为β2 =(0.09±0.01)cm/GW，使得强飞秒激光辐射能够在该光谱范围内通过极薄的（< 0.1-1 mm）浸没层传播。尽管在浸没体积内存在非线性吸收和光损伤，但在金刚石体积内的测试刻写模式下，光致发光微标记随着曝光时间和脉冲能量的减小而变得更加均匀。

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Nonlinear Optical Properties of Ge7Se93 Chalcogenide Glass as a Low-Melting Immersion Medium for Femtosecond Laser Marking of Diamonds in the Near-Infrared Range

The possibility of the femtosecond laser structural micromodification (microlabeling) of diamond through a solid immersion layer made of Ge₇Se₉₃ chalcogenide glass at a wavelength of 1.55 μm has been investigated. The two-photon absorption coefficient of Ge₇Se₉₃ has been measured to be β₂ = (0.09 ± 0.01) cm/GW, which allows the propagation of intense femtosecond laser radiation in this spectral range through realistically thin (<0.1–1 mm) immersion layers. Despite the nonlinear absorption and optical damage in the immersion volume, photoluminescent microlabels have been observed in the test writing modes in the volume of diamond, which become more uniform with decreasing exposure time and pulse energy.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.