Oxygen plasma etching of fused silica substrates for high power laser optics

Abromavičius, Giedrius; Juodagalvis, Tomas; Buzelis, Rytis; Juškevičius, Kęstutis; Drazdys, Ramutis; Kičas, Simonas

doi:10.1016/j.apsusc.2018.05.105

Cited by 23 publications

(8 citation statements)

References 22 publications

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“…The first option is to replace the iPhone 13 Pro with a well-packaged camera that can capture photons with a wide range of wavelengths, from infrared to UV. Additionally, the Schott D263M Glass can be substituted with a glass having a wider transmittance range, such as UV Fused Silica (UVFS, 195–2100 nm) or CaF 2 (170–8000 nm) These glasses possess excellent chemical resistance and are extensively used in advanced optical systems. , More significantly, both UV Fused Silica and CaF 2 can resist plasma etching to a certain extent. , To confirm and compare the performance of these potential glass materials, further testing is required.…”

Section: Resultsmentioning

confidence: 99%

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Colorimetric Signal Readout for the Detection of Volatile Organic Compounds Using a Printable Glass-Based Dielectric Barrier Discharge-Type Helium Plasma Detector

et al. 2023

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In this paper, we report on a printable glass-based manufacturing method and a new proof-of-concept colorimetric signal readout scheme for a dielectric barrier discharge (DBD)-type helium plasma photoionization detector. The sensor consists of a millimeter-sized glass chamber manufactured using a printable glass suspension. Plasma inside the chip is generated using a custom-built power supply (900 V and 83.6 kHz), and the detector uses ∼5 W of power. Our new detection scheme is based on detecting the change in the color of plasma after the introduction of target gases. The change in color is first captured by a smartphone camera as a video output. The recorded video is then processed and converted to an image light intensity vs retention time plot (gas chromatogram) using three standard color space models (red, green, blue (RGB), hue, saturation, lightness (HSL), and hue, saturation, value (HSV)) with RGB performing the best among the three models. We successfully detected three different categories of volatile organic compounds using our new detection scheme and a 30-m-long gas chromatography column: (1) straight-chain alkanes (n-pentane, n-hexane, n-heptane, n-octane, and n-nonane), (2) aromatics (benzene, toluene, and ethylbenzene), and (3) polar compounds (acetone, ethanol, and dichloromethane). The best limit of detection of 10 ng was achieved for benzene at room temperature. Additionally, the device showed excellent performance for different types of sample mixtures consisting of three and five compounds. Our new detector readout method combined with our ability to print complex glass structures provides a new research avenue to analyze complex gas mixtures and their components.

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Section: Resultsmentioning

confidence: 99%

“…79,80 More significantly, both UV Fused Silica and CaF 2 can resist plasma etching to a certain extent. 81,82 To confirm and compare the performance of these potential glass materials, further testing is required.…”

Section: Limit Of Detection (Lod) and Linearity Rangementioning

confidence: 99%

Colorimetric Signal Readout for the Detection of Volatile Organic Compounds Using a Printable Glass-Based Dielectric Barrier Discharge-Type Helium Plasma Detector

et al. 2023

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“…Plasma ablation is the plasma-aided surface etching of materials, very similar to sputtering, without using any liquid etchant. A major share of plasma etching has been carried out with oxygen plasma [ 181 , 182 , 183 ] where oxygen, the precursor gas, was channeled into a vacuum chamber. During the process, the most peripheral layer of the substrate is etched off, and accordingly, a negligibly small weight loss occurs [ 184 , 185 ].…”

Section: Plasma Surface Modification (Psm)mentioning

confidence: 99%

Plasma Surface Engineering of Natural and Sustainable Polymeric Derivatives and Their Potential Applications

Pillai

Thomas

2023

Polymers

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Recently, natural as well as synthetic polymers have been receiving significant attention as candidates to replace non-renewable materials. With the exponential developments in the world each day, the collateral damage to the environment is incessant. Increased demands for reducing pollution and energy consumption are the driving force behind the research related to surface-modified natural fibers (NFs), polymers, and various derivatives of them such as natural-fiber-reinforced polymer composites. Natural fibers have received special attention for industrial applications due to their favorable characteristics, such as low cost, abundance, light weight, and biodegradable nature. Even though NFs offer many potential applications, they still face some challenges in terms of durability, strength, and processing. Many of these have been addressed by various surface modification methodologies and compositing with polymers. Among different surface treatment strategies, low-temperature plasma (LTP) surface treatment has recently received special attention for tailoring surface properties of different materials, including NFs and synthetic polymers, without affecting any of the bulk properties of these materials. Hence, it is very important to get an overview of the latest developments in this field. The present article attempts to give an overview of different materials such as NFs, synthetic polymers, and composites. Special attention was placed on the low-temperature plasma-based surface engineering of these materials for diverse applications, which include but are not limited to environmental remediation, packaging, biomedical devices, and sensor development.

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“…However, the input power of optical fibers is limited for the laser-induced damage 3 – 6 In the laser system, as the carrier of the laser, the optical fiber is the main component affected by laser-induced damage 7 – 9 Therefore, enhancing the transport capacity of optical fibers is of great significance for the development of high-power lasers.…”

Section: Introductionmentioning

confidence: 99%

Laser-induced damage threshold based on thermal effects in high-purity silica optical fiber

Lou

Jia

et al. 2023

Opt. Eng.

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.Laser-induced damage threshold (LIDT) is investigated at several wavelengths in the high-purity silica optical fiber. The finite element method (FEM) is used to study transmission mode, LIDT, temperature distribution, and thermal stress distribution of the fiber. Our results show that the center of the front surface is subjected to severe thermal effects under laser irradiation and consequently, and it is susceptible damage. The variations in temperature and thermal stress are identified as increasing with laser fluences, which show a similar tendency. When laser fluences surpass the LIDT, such as 35 GW / cm2, the temperature at the front surface center shows a sudden growth and the melting damage appears, and no stress damage occurs at this time. Notably, the melting effect of high purity fused silica optical fiber is simulated by numerical calculation based on ray optics for the first time. Our research can provide systematic FEM simulations for the LIDT of silica optical fibers.

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Oxygen plasma etching of fused silica substrates for high power laser optics

Cited by 23 publications

References 22 publications

Colorimetric Signal Readout for the Detection of Volatile Organic Compounds Using a Printable Glass-Based Dielectric Barrier Discharge-Type Helium Plasma Detector

Colorimetric Signal Readout for the Detection of Volatile Organic Compounds Using a Printable Glass-Based Dielectric Barrier Discharge-Type Helium Plasma Detector

Plasma Surface Engineering of Natural and Sustainable Polymeric Derivatives and Their Potential Applications

Laser-induced damage threshold based on thermal effects in high-purity silica optical fiber

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