Features of fused silica ablation by laser induced carbon microplasma

Shuhao, Cai; Rymkevich, Vladimir; Sergeev, M. M.; Samokhvalov, A. A.

doi:10.1007/s11082-020-2202-4

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…The micro-cavity depth increases mostly after the 1-st micro-plasma processing scan, because no micro gap between graphite and ber for the 1-st processing as discussed above, resulting in more intensive laser-induced micro-plasma. Later, excluding the randomness of the experiments, the microcavity depth goes on increasing with a small tendency to slow down the rising, resulted from the micro gap increasing between the graphite and ber as discussed above and in our previous work (Shuhao et al 2020). It should be noted, rstly, the micro-cavity evolves into more regular crater-like structure as the number of scans more than 4; secondly, after 5 micro-plasma processing scans, the micro-cavity reaches to the ber core, and in such condition (can be detected by optical spectrum analyzer), less laser power should be utilized to remove less silica in ber to obtain a well sensitive FMZI.…”

Section: The Evolution Of Micro-cavitysupporting

confidence: 54%

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The fabrication processes and simple micro-cavity size adjustment of fiber Mach-Zehnder interferometer by laser-induced micro-plasma

Shuhao

Sergeev²,

Petrov³

et al. 2023

Opt Quant Electron

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The detailed fabrication processes of ber Mach-Zehnder interferometers (FMZIs) by nanosecond laserinduced micro-plasma and its simple micro-cavity size adjustment are proposed and demonstrated. The fabrication can be divided into 4 processes: (1) heat transfer, (2) micro-plasma formation, (3) microplasma expansion and ablation, (4) cooling down and micro-structure formation. The simple micro-cavity size adjustment is proposed based on the above understanding, instead of the "point processing" of femtosecond laser, here only the focus position is required to be moved. The fabricated FMZI exhibits a high sensitivity of -15811 nm/RIU (refractive index unit) for the index sensing application.

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Section: The Evolution Of Micro-cavitysupporting

confidence: 54%

“…1(b). Then in the third process, after irradiation of ns laser, the plasma will go on expanding for the plasma continues longer than ns pulse duration (Shuhao et al 2020) as shown in Fig. 1(c), meanwhile, the plasma will also go on ablating the ber until the plasma quenched.…”

Section: The Fabrication Processesmentioning

confidence: 99%

The fabrication processes and simple micro-cavity size adjustment of fiber Mach-Zehnder interferometer by laser-induced micro-plasma

Shuhao

Sergeev²,

Petrov³

et al. 2023

Opt Quant Electron

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“…Arosa and de la Fuente proposed the use of low coherence interferometry to measure material dispersion in fused silica, which can be used to measure impurities in fused silica materials quickly and efficiently over a wide spectral range [5]. Shuhao et al studied the surface structure characteristics of laser-induced microplasma on fused silica and measured the intensity of its microplasma and found that the microplasma was related to the ablation of fused silica [6]. Hongjie et al believed that the laser-induced damage on the fused silica surface is often ignited by absorbing impurities introduced by the polishing process.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale Characterization and Impurities of Fused Silica Optical Surfaces

Dai

Zhou

Huang

et al. 2022

Advances in Materials Science and Engineering

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Fused silica is produced by melting high-purity silica and then rapidly cooling it. It has good physical and chemical properties, which also make it the raw material for most components in the optical industry, and is widely used in optical fiber communications, semiconductors, and aerospace. The content of SiO2 in fused silica is as high as 99.995% or more, but some impurities will still be generated during production and processing. The impurity elements of its optical curved surface can induce damage to the fused silica and adversely affect its performance, thereby affecting the performance of the fabricated element. In this paper, the impurities in the nanostructure of the fused silica optical surface are mainly analyzed, and the impurities on the surface are qualitatively and quantitatively analyzed by the characterization methods of secondary ion mass spectrometry (SIMS) and X-ray diffraction analysis, respectively. The main component type and content of impurities were measured. The experimental results have an important impact on the production and preparation of optical components using fused silica as raw materials, which can remove surface impurities in a targeted manner and better utilize the advantages of fused silica materials.

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The fabrication processes and simple micro-cavity size adjustment of fiber Mach-Zehnder interferometer by laser-induced micro-plasma

Shuhao

Sergeev

Petrov

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

The detailed fabrication processes of fiber Mach-Zehnder interferometers (FMZIs) by nanosecond laser-induced micro-plasma and its simple micro-cavity size adjustment are proposed and demonstrated. The fabrication can be divided into 4 processes: (1) heat transfer, (2) micro-plasma formation, (3) micro-plasma expansion and ablation, (4) cooling down and micro-structure formation. The simple micro-cavity size adjustment is proposed based on the above understanding, instead of the “point processing” of femtosecond laser, here only the focus position is required to be moved. The fabricated FMZI exhibits a high sensitivity of -15811 nm/RIU (refractive index unit) for the index sensing application.

show abstract

Features of fused silica ablation by laser induced carbon microplasma

Cited by 3 publications

References 16 publications

The fabrication processes and simple micro-cavity size adjustment of fiber Mach-Zehnder interferometer by laser-induced micro-plasma

The fabrication processes and simple micro-cavity size adjustment of fiber Mach-Zehnder interferometer by laser-induced micro-plasma

Nanoscale Characterization and Impurities of Fused Silica Optical Surfaces

The fabrication processes and simple micro-cavity size adjustment of fiber Mach-Zehnder interferometer by laser-induced micro-plasma

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