A comparative study on MHz and GHz bursts addressing the polarization-based control of laser-induced modifications in fused silica

IF 5.4 3区 材料科学 Q2 CHEMISTRY, PHYSICAL ACS Applied Energy Materials Pub Date : 2024-09-10 DOI:10.1016/j.optlastec.2024.111289
Miglė Mackevičiūtė, Juozas Dudutis, Paulius Gečys
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Abstract

Self-filamentation of laser beams is widely used in glass scribing. However, the scribing speed is usually limited due to a small transverse damage zone of the modifications. Therefore, the processing time could be improved by forming controllable cracks. In this paper, we demonstrate a polarization-based control of cracks formed using burst regime. To the best of our knowledge, this is the first time a volumetric laser-induced crack control by polarization is reported inside fused silica. This research also includes a comparative study of MHz and GHz burst regimes on modification lengths and positions. The GHz burst is shown to be more advantageous over the MHz regime, as it allows forming more uniform modifications with longer cracks. However, both MHz and GHz bursts are eligible for controllable crack formation. At the polarization-controlled regime modification longitudinal lengths reached up to 1 mm and transverse lengths up to 32 μm. These results indicate that filamentation scribing using bursts has the potential to increase the scribing speeds up to tens of meters per second.

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针对基于偏振的熔融石英激光诱导改性控制的 MHz 和 GHz 脉冲串比较研究
激光束的自纤化被广泛应用于玻璃划片。然而,由于修改的横向损伤区域较小,划线速度通常会受到限制。因此,可以通过形成可控裂纹来缩短加工时间。在本文中,我们展示了一种基于偏振的裂纹控制方法。据我们所知,这是首次报道在熔融石英内部通过偏振进行体积激光诱导裂纹控制。这项研究还包括对 MHz 和 GHz 爆裂机制在修改长度和位置方面的比较研究。结果表明,吉赫猝发比兆赫机制更有优势,因为它可以形成更均匀的改性和更长的裂纹。不过,MHz 和 GHz 脉冲串均可用于可控裂纹形成。在极化控制机制下,改性的纵向长度可达 1 毫米,横向长度可达 32 微米。这些结果表明,使用脉冲串进行丝状划线有可能将划线速度提高到每秒数十米。
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来源期刊
ACS Applied Energy Materials
ACS Applied Energy Materials Materials Science-Materials Chemistry
CiteScore
10.30
自引率
6.20%
发文量
1368
期刊介绍: ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.
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