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Laser-Ablation Synthesis of Colloidal ZrN Nanoparticles in Different Liquids 在不同液体中激光烧蚀合成 ZrN 纳米胶体粒子
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-03 DOI: 10.3103/S1068335624601092
M. S. Savinov, G. V. Tikhonowski, A. I. Pastukhov, A. A. Fronya, I. N. Zavestovskaya, S. M. Klimentov, A. V. Kabashin, A. A. Popov
{"title":"Laser-Ablation Synthesis of Colloidal ZrN Nanoparticles in Different Liquids","authors":"M. S. Savinov,&nbsp;G. V. Tikhonowski,&nbsp;A. I. Pastukhov,&nbsp;A. A. Fronya,&nbsp;I. N. Zavestovskaya,&nbsp;S. M. Klimentov,&nbsp;A. V. Kabashin,&nbsp;A. A. Popov","doi":"10.3103/S1068335624601092","DOIUrl":"10.3103/S1068335624601092","url":null,"abstract":"<p>The paper presents a study of the effect of the liquid medium type on the properties of zirconium nitride (ZrN) nanoparticles (NPs) synthesized by pulsed laser ablation in liquids (PLAL). A comparative analysis of the properties of NPs synthesized in six different liquids (acetonitrile, acetone, ethanol, isopropyl alcohol, dimethylformamide, and deionized water) demonstrates that NPs obtained in acetonitrile and acetone are the most promising for biomedical applications. Synthesized ZrN NPs can be used as sensitizers of innovative noninvasive methods of cancer therapy and contrast agents in diagnostics.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9","pages":"365 - 370"},"PeriodicalIF":0.6,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computational Modeling of Magnetron Sputtering for Thin-Film Materials: Optimizing Deposition and Analyzing Morphology 薄膜材料磁控溅射的计算建模：优化沉积和分析形态
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-03 DOI: 10.3103/S1068335624600694
Bouazza Abdelkader
{"title":"Computational Modeling of Magnetron Sputtering for Thin-Film Materials: Optimizing Deposition and Analyzing Morphology","authors":"Bouazza Abdelkader","doi":"10.3103/S1068335624600694","DOIUrl":"10.3103/S1068335624600694","url":null,"abstract":"<p>Thin-film layers are commonly produced via magnetron sputtering, with experimental exploration typically aimed at determining optimal deposition conditions and understanding the relationship between film quality and deposition parameters. Despite the benefits, traditional experimentation poses drawbacks such as time and cost constraints. Hence, employing efficient simulation models is recommended to streamline processes, save resources, and enhance accuracy. This article focuses on developing a computer simulation model for magnetron sputtering deposition, particularly targeting semiconductor materials like silicon (Si) and germanium (Ge) used in modern photovoltaic cells, as well as common electronic components like copper (Cu) and silver (Ag). The simulation model, employing Monte Carlo analysis, accurately predicts thin film deposition and thickness while considering factors such as ejected atom flow, energy, direction, and collision dynamics. The impact of target-substrate distance on deposition performance is also investigated. Comparative analysis between our simulation data and previous works validates the efficacy of the proposed model.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9","pages":"324 - 333"},"PeriodicalIF":0.6,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Porosity and Pore Size of a Silicon Target on the Laser Ablation Threshold 硅靶的孔隙率和孔径对激光烧蚀阈值的影响
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-03 DOI: 10.3103/S1068335624601055
M. S. Grigoryeva, I. N. Zavestovskaya, A. P. Kanavin, A. A. Fronya, E. I. Mavreshko
{"title":"Effect of Porosity and Pore Size of a Silicon Target on the Laser Ablation Threshold","authors":"M. S. Grigoryeva,&nbsp;I. N. Zavestovskaya,&nbsp;A. P. Kanavin,&nbsp;A. A. Fronya,&nbsp;E. I. Mavreshko","doi":"10.3103/S1068335624601055","DOIUrl":"10.3103/S1068335624601055","url":null,"abstract":"<p>Laser ablation of a porous silicon target irradiated by ultrashort IR laser pulses in an air environment is simulated using the molecular dynamic approach. The number of ablated atoms is calculated for targets with different porosity and pore size. It is found that a porous silicon target with 1 nm pore size is ablated more efficiently at low laser pulse fluences. It is shown that an increase in the target porosity leads to a decrease in the ablation threshold: with a change in porosity from 10 to 50%, the laser ablation threshold decreases by more than 1.5 times. The obtained results can be applied to optimize the regimes of laser ablation synthesis of nanoparticles using nanostructured porous silicon targets.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9","pages":"353 - 359"},"PeriodicalIF":0.6,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Irregularity in the Primary Cosmic Rays Mass Composition at an Energy of ~10 PeV 能量约为 10 PeV 的初级宇宙线质量组成的不规则性
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-03 DOI: 10.3103/S1068335624600943
S. E. Pyatovsky
{"title":"Irregularity in the Primary Cosmic Rays Mass Composition at an Energy of ~10 PeV","authors":"S. E. Pyatovsky","doi":"10.3103/S1068335624600943","DOIUrl":"10.3103/S1068335624600943","url":null,"abstract":"<p>Irregularity in the mass composition of primary cosmic rays (PCR) at an energy of ∼10 PeV is reviewed. To assess changes of the PCR mass composition, the X-ray emulsion chamber (XREC) method and the halo-method based on XREC were used. The study of changes in the PCR mass composition was carried out based on experimentally obtained characteristics of the extensive air shower (EAS) trunks, where fluctuations of these characteristics are minimal and information about the primary interaction of PCR nuclei with atmospheric atoms is maximally preserved. It is shown that at an <i>E</i><sub>0</sub> = 10 PeV there is a local maximum of the heavy nuclei fraction. This maximum is correlated with the PCR sources including stars of variable SR (red giants and super-giants) and WR (Wolf-Rayet) types.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9","pages":"371 - 378"},"PeriodicalIF":0.6,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of the KFParticle Package for Reconstruction of the Primary Vertex of Interaction in the SPD Experiment 应用 KFP 粒子软件包重建 SPD 实验中的主要相互作用顶点
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-03 DOI: 10.3103/S1068335624600979
V. F. Andreev
{"title":"Application of the KFParticle Package for Reconstruction of the Primary Vertex of Interaction in the SPD Experiment","authors":"V. F. Andreev","doi":"10.3103/S1068335624600979","DOIUrl":"10.3103/S1068335624600979","url":null,"abstract":"<p>The article considers the possibility of using the KFParticle package developed for the reconstruction of short-lived particles also for the reconstruction of the primary vertex of interactions in the SPD experiment at the NICA collider. A comparison is made with the algorithm for reconstruction of the primary vertex currently used in the SPD experiment.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9","pages":"319 - 323"},"PeriodicalIF":0.6,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Study of Reactions with Light Nuclei Using a Position Sensitive Fast Neutron Detector 使用位置敏感型快速中子探测器对轻核反应的研究
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-03 DOI: 10.3103/S1068335624600657
S. I. Potashev, I. V. Meshkov, A. A. Afonin, Yu. M. Burmistrov, A. I. Drachev, S. Kh. Karaevsky, A. A. Kasparov, V. N. Ponomarev, V. I. Razin
{"title":"A Study of Reactions with Light Nuclei Using a Position Sensitive Fast Neutron Detector","authors":"S. I. Potashev,&nbsp;I. V. Meshkov,&nbsp;A. A. Afonin,&nbsp;Yu. M. Burmistrov,&nbsp;A. I. Drachev,&nbsp;S. Kh. Karaevsky,&nbsp;A. A. Kasparov,&nbsp;V. N. Ponomarev,&nbsp;V. I. Razin","doi":"10.3103/S1068335624600657","DOIUrl":"10.3103/S1068335624600657","url":null,"abstract":"<p>A position-sensitive detector, which is a neutron target at the same time, is presented to study the interaction reactions of fast neutrons of above 1 MeV with light nuclei, in particular, with the <sup>10</sup>B nucleus. It contains two boron-10 layers and a system of wire electrodes to identify secondary nuclei, in particular <sup>3</sup>H and <sup>4</sup>He, and to determine energy loss and departure angle. Thus the neutron energy can be determined.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9","pages":"334 - 338"},"PeriodicalIF":0.6,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dependence of Properties of Zirconium Nitride Nanoparticles Prepared by Laser Ablation in Liquids on Synthesis Parameters 在液体中通过激光烧蚀制备的氮化锆纳米粒子的特性与合成参数的关系
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-11-03 DOI: 10.3103/S1068335624601110
I. V. Sozaev, G. V. Tikhonowski, M. S. Savinov, A. A. Popov, A. A. Laktionov, A. P. Kanavin, I. N. Zavestovskaya, S. M. Klimentov, A. I. Pastukhov, A. V. Kabashin
{"title":"Dependence of Properties of Zirconium Nitride Nanoparticles Prepared by Laser Ablation in Liquids on Synthesis Parameters","authors":"I. V. Sozaev,&nbsp;G. V. Tikhonowski,&nbsp;M. S. Savinov,&nbsp;A. A. Popov,&nbsp;A. A. Laktionov,&nbsp;A. P. Kanavin,&nbsp;I. N. Zavestovskaya,&nbsp;S. M. Klimentov,&nbsp;A. I. Pastukhov,&nbsp;A. V. Kabashin","doi":"10.3103/S1068335624601110","DOIUrl":"10.3103/S1068335624601110","url":null,"abstract":"<p>This paper presents a study of the dependence of the size and optical characteristics, as well as the productivity of laser synthesis of zirconium nitride (ZrN) nanoparticles (NPs) on laser ablation parameters. It is shown that changing the distance between the focusing lens and the target surface allows one to control the mode and half-width of the size distribution from (59 ± 35 nm) to (29 ± 14 nm), as well as spectrally shift the plasmon resonance peak from 638 nm to 680 nm. Additionally, a possibility of controlling the size characteristics of ZrN NPs when changing the laser radiation energy is demonstrated. Increasing the laser pulse energy from 10 to 100 μJ makes it possible to vary the NP size from (27 ± 13 nm) to (47 ± 30 nm). The results form a quantitative basis for the production of laser-synthesized ZrN NPs with controlled size and optical properties for applications in biomedicine.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 9","pages":"360 - 364"},"PeriodicalIF":0.6,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gain-Switched Ytterbium Fiber Laser Operating at a Wavelength of 1127 nm 工作波长为 1127 纳米的增益开关镱光纤激光器
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-10-18 DOI: 10.3103/S1068335624601420
S. A. Filatova, V. A. Kamynin, A. R. Makeeva, A. A. Rybaltovsky, A. E. Fale, A. I. Fedoseev, V. B. Tsvetkov
{"title":"Gain-Switched Ytterbium Fiber Laser Operating at a Wavelength of 1127 nm","authors":"S. A. Filatova,&nbsp;V. A. Kamynin,&nbsp;A. R. Makeeva,&nbsp;A. A. Rybaltovsky,&nbsp;A. E. Fale,&nbsp;A. I. Fedoseev,&nbsp;V. B. Tsvetkov","doi":"10.3103/S1068335624601420","DOIUrl":"10.3103/S1068335624601420","url":null,"abstract":"<p>A compact gain-switched all-fiber ytterbium laser operating at a wavelength of 1127 nm with the ability to control pulsed radiation parameters has been investigated. Gain switching was carried out by modulating the current of a semiconductor pump diode. With pumping energy ranging from 197.6 to 263.5 μJ, there was one generation pulse per each pump pulse with a duration of 0.43 to 1.1 μs, energy of 5.3 to 8.8 μJ, and a repetition rate of 100 Hz. Increasing the pumping energy above 265 μJ led to a change in the shape of generated pulses and to their energy rising up to 70 μJ.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 5 supplement","pages":"S389 - S394"},"PeriodicalIF":0.6,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phase Synchronism in the Generation of Harmonics in Gas Taking into Account Changes in the Wave Vector Detuning during the Propagation of an Intense Femtosecond Laser Pulse 考虑到强飞秒激光脉冲传播过程中波矢量解谐变化的气体谐波产生中的相位同步问题
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-10-18 DOI: 10.3103/S1068335624601481
K. V. Lvov, S. Yu. Stremoukhov
{"title":"Phase Synchronism in the Generation of Harmonics in Gas Taking into Account Changes in the Wave Vector Detuning during the Propagation of an Intense Femtosecond Laser Pulse","authors":"K. V. Lvov,&nbsp;S. Yu. Stremoukhov","doi":"10.3103/S1068335624601481","DOIUrl":"10.3103/S1068335624601481","url":null,"abstract":"<p>An alternative approach to determining the conditions of phase synchronism in the generation of harmonics in gases is proposed to take into account changes in the wave vector detuning during the propagation of an intense femtosecond laser pulse. Based on a numerical study of the third-harmonic generation by an argon medium, laws of scaling laser radiation absorption in the medium and of the phase modulation of spectral field components, which link macroparameters of interaction (pressure, intensity, and degree of medium ionization), have been identified. The possibility was investigated of increasing the third harmonic signal by increasing the gas jet pressure while keeping absorption at a low level.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 5 supplement","pages":"S408 - S415"},"PeriodicalIF":0.6,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of the Efficiency of Sodium Atom Excitation Schemes for Generating Monochromatic and Polychromatic Laser Guide Stars 钠原子激发方案生成单色和多色激光导星的效率比较
IF 0.6 4区 物理与天体物理
Bulletin of the Lebedev Physics Institute Pub Date : 2024-10-18 DOI: 10.3103/S1068335624601390
S. M. Bobrovnikov, L. A. Bolbasova, E. V. Gorlov, V. I. Zharkov, V. P. Lukin
{"title":"Comparison of the Efficiency of Sodium Atom Excitation Schemes for Generating Monochromatic and Polychromatic Laser Guide Stars","authors":"S. M. Bobrovnikov,&nbsp;L. A. Bolbasova,&nbsp;E. V. Gorlov,&nbsp;V. I. Zharkov,&nbsp;V. P. Lukin","doi":"10.3103/S1068335624601390","DOIUrl":"10.3103/S1068335624601390","url":null,"abstract":"<p>The efficiency of ten sodium atom excitation schemes that can potentially be used to generate a sodium polychromatic laser guide star (PLGS) and a monochromatic laser guide star (LGS) is compared. It is shown that for creating an LGS in sodium vapor using the cascade fluorescence effect with single-photon excitation, the most suitable is the 4<sup>2</sup>P<sub>3/2</sub> ← 3<sup>2</sup>S<sub>1/2</sub> transition excited at a wavelength of 330.237 nm and demonstrating the highest LGS characteristics, while the efficiency decreases by two orders of magnitude compared to a monochromatic LGS at a wavelength of 588.995 nm.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":"51 5 supplement","pages":"S351 - S364"},"PeriodicalIF":0.6,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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