Relevant bibliographies by topics / Pulse mode deposition

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Pulse mode deposition'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Pulse mode deposition"

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Tumarkin, Alexander V., Dobrynya V. Kolodko, Maksim M. Kharkov, et al. "Preparation of Alumina Thin Films by Reactive Modulated Pulsed Power Magnetron Sputtering with Millisecond Pulses." Coatings 14, no. 1 (2024): 82. http://dx.doi.org/10.3390/coatings14010082.

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Thispaper aims to investigate the quality of thin alumina films deposited on glass samples using magnetron sputtering in the reactive modulated pulsed power mode (MPPMS) and evaluate the process productivity. The aluminum target was sputtered in Ar/O2 gas mixtures with different fractions of oxygen in the total gas flow, in the fixed pulsed voltage mode. The pulse-on duration was varied between 5 and 10 ms, while the pulse-off time was 100 or 200 ms. The dependences of mass deposition rate and discharge current on the oxygen flow were measured, and the specific deposition rate values were calc
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Poolcharuansin, Phitsanu, Artit Chingsungnoen, Nitisak Pasaja, and James Bradley. "An Inverted Magnetron Operating in HiPIMS Mode." Plasma 1, no. 2 (2018): 277–84. http://dx.doi.org/10.3390/plasma1020024.

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An ionized physical vapor deposition technique for thin ferromagnetic films is proposed. The technique is based on high power impulse magnetron sputtering (HiPIMS) with positive discharge polarity. A gapped-target was employed as the cathode of the magnetron. By applying positive HiPIMS pulses to the anode, sputtered particles inside the magnetron source were ionized and extracted through the gap. Using a discharge current with a peak of about 13 A, an ion flux in the order of 1021 m−2s−1 was obtained at a distance of 45 mm from the magnetron. In addition, deposition rates of up to 1.1 Å/s for
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Haris, Hazlihan, Ahmad Razif Muhammad, Arni Munira Markom, et al. "Generation of Mode-Locked Dissipative Solitons with Sidebands in an Erbium-Doped Fiber Laser Using Bi2Te3." Journal of Physics: Conference Series 2974, no. 1 (2025): 012002. https://doi.org/10.1088/1742-6596/2974/1/012002.

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Abstract In the experiment carried out, we constructed mode-locked Erbium Doped Pulsed Fiber Laser (EDFL) with the aid of Bismuth Telluride (Bi2Te3). The SA was applied to surface of fiber ferrule through an optical deposition. The generated optical spectrum had flat top and accompanied with sidebands. The mode-locked EDFL was operating at repetition rate of 12.1 MHz and pulse width of 0.9 ps. The home-made SA is capable inducing saturable absorption effect for optical pulse generation in a typical EDFL cavity.
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Sakhnenko, M. D. "Cobalt-vanadium coating deposition via programmed electrolysis mode." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 3 (July 2024): 165–70. http://dx.doi.org/10.32434/0321-4095-2024-154-3-165-170.

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In the current work, the co-deposition of cobalt with vanadium from a complex citrate electrolyte via stationary and pulse electrolysis modes was investigated. The process was carried out at a current density of 1–15 Adm–2 in stationary electrolysis mode and 2–10 Adm–2 in pulse electrolysis mode, with variable ratio of pulse time to pause time at a temperature range of 35–400С and pH 3.0–3.5. According to the results of X-ray fluorescence spectrometry, the maximum content of vanadium in the coating obtained via the programmed electrolysis mode is 1.20–1.45%, which is tens of times higher tha
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Lin, Jing, Sven Daboss, Dominik Blaimer, and Christine Kranz. "Micro-Structured Polydopamine Films via Pulsed Electrochemical Deposition." Nanomaterials 9, no. 2 (2019): 242. http://dx.doi.org/10.3390/nano9020242.

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Polydopamine (PDA) films are interesting as smart functional materials, and their controlled structured formation plays a significant role in a wide range of applications ranging from cell adhesion to sensing and catalysis. A pulsed deposition technique is reported for micro-structuring polydopamine films using scanning electrochemical microscopy (SECM) in direct mode. Thereby, precise and reproducible film thicknesses of the deposited spots could be achieved ranging from 5.9 +/− 0.48 nm (1 pulse cycle) to 75.4 nm +/− 2.5 nm for 90 pulse cycles. The obtained morphology is different in comparis
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Morozovych, V. V., and Yu O. Lyashenko. "Morphological structure of galvanized copper layers in inhomogeneous regimes." Cherkasy University Bulletin: Physical and Mathematical Sciences, no. 1 (2022): 64–73. http://dx.doi.org/10.31651/2076-5851-2021-64-73.

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The microstructure of copper layers obtained by electrodeposition in stationary, pulsed and stochastic modes on copper substrates was studied by means of scanning electron microscopy. It was found that the shape of the applied grains differs significantly in the case of pulsed and stationary application modes. The technology of production of electrodeposited layers in stationary, pulse and stochastic modes of copper on copper substrates is worked out in the work. The developed automated software and hardware complex was used to control the electrodeposition process. The effect of electrodeposi
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Wu, Wei, Chunjie Wen, Jisheng He, et al. "Effect of Different Welding Modes on Morphology and Property of SS316L Stainless Steel Deposition by Robotic Metal-Inert Gas Welding." Materials 17, no. 18 (2024): 4479. http://dx.doi.org/10.3390/ma17184479.

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The widespread adoption of arc additive manufacturing techniques across various industries has advanced the field of SS316L stainless steel manufacturing. It is crucial to acknowledge that different welding modes exert distinct influences on the forming and mechanical performance. This study analyzed the thermal input associated with four specific welding modes in LORCH MIG welding, clarifying the transition dynamics of molten droplets through waveform analysis and examining the resultant effects on microstructure and performance characteristics. The Pulse, Speed-Pulse-XT, and Twin-Pulse modes
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Wadi, Nurul Izzah S., Aeriyn D. Ahmad, and Zulzilawati Jusoh. "Soliton Pulse Generation with MoS2 Saturable Absorber." Journal of Physics: Conference Series 2696, no. 1 (2024): 012005. http://dx.doi.org/10.1088/1742-6596/2696/1/012005.

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Abstract We have successfully generated soliton mode-locked pulses in a ring Erbium-doped fiber laser (EDFL) cavity using molybdenum disulfide (MoS2) saturable absorber. The MoS2 thin film was grown onto ITO substrate through electro-deposition process using a mixture of 0.5M H2MoO4 and 0.5M Na2S2O3.5H2O as electrolyte solution. The EDFL produced stable soliton pulses operating at centre wavelength of 1557 nm and repetition rate of 1.88 MHz. The mode-locking was realized by injecting pump power within a range from 77 mW to 124 mW. It generates the maximum output power of 0.7 mW and pulse width
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Cornish, Neville, Rahim Kurji, Anthony Roccisano, and Reza Ghomashchi. "Techno-economic Feasibility of Modified Pulse Arc Deposition on Thick Section of Quenched and Tempered Steel." MATEC Web of Conferences 269 (2019): 01012. http://dx.doi.org/10.1051/matecconf/201926901012.

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Quenched and Tempered (Q&T) steels welded structures that have numerous applications, particularly in the defence industry. However these steels are particularly prone to Hydrogen Assisted Cold Cracking (HACC) and require a highly-skilled welder to fabricate defect-free structures. This is due to the selection of the manual metal arc welding process of shielded metal arc welding (SMAW). The introduction of Modified Pulsed arc mode of depositions; a variation to Pulsed Arc deposition, has advanced deposition rates and can be employed by welders with a greater variation in skill. In this bod
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Middya, Somnath, Animesh Layek, and Partha Pratim Ray. "Possibility to Use Low Temperature Pulsed RF Sputtered Indium Tin Oxide for the Fabrication of Organic Solar Cell." Conference Papers in Energy 2013 (May 23, 2013): 1–4. http://dx.doi.org/10.1155/2013/542726.

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In this work we have used pulsed RF sputtering method to deposit indium tin oxide (ITO) for the fabrication of P3HT:PCBM based bulk heterojunction polymer solar cell. We have deposited ITO at low substrate temperature (100°C) and for different pulse modes. Oxygen was used as an admixture to the sputtering gas argon, and the percentage was varied from 0 to 6%. During deposition, plasma was studied by optical emission spectroscopy (OES) method. For our present range of deposition conditions lowest resistivity of ITO is around 2 × 10−4 Ω-cm, and it is deposited in High-Low mode with 1% of oxygen
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Dissertations / Theses on the topic "Pulse mode deposition"

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Kalinichenko, A. I., V. E. Strel'nitskij, and V. V. Vasyliev. "Characteristics of DLC Coating Prepared by Pulse Biasing: Analysis in Model of Thermoelastic Peak of Ion." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35398.

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A mode of pulse biasing of DLC coating deposition is theoretically investigated. In this mode a deposited ion flow of plasma with energy of E0 (20 200) eV is modified by superimposing of pulse potential ~ 1000 V. It was shown that intrinsic stress in a DLC coating can be decreased in several times without of essential decrease of sp3-bonded carbon concentration compared with DLC made in stationary mode deposition at E0 ion energy. A method of optimization of pulse mode parameters is proposed which is based on analysis of location of thermoelastic peaks of ions on phase P, T-diagram of car
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Patton, Heather M. A. "THE FABRICATION OF HEUSLER ALLOY THIN FILMS FROM MULTIPHASE TARGETS USING PULSED LASER DEPOSITION." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1796120911&sid=4&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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McMitchell, Sean Robert Craig. "An investigation into controlling the growth modes of ferroelectric thin films using pulsed laser deposition and RHEED." Thesis, University of Birmingham, 2008. http://etheses.bham.ac.uk//id/eprint/165/.

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Thin film ferroelectricss are widely considered for tunable microwave applications, the reduced small dimensions leading to low tuning voltages. The incipient ferroelectric strontium titanate is an ideal solution for tunable microwave devices, particularly in conjunction with high temperature superconductors. It has no spontaneous polarisation yet possesses a large permittivity at low temperatures that is sensitive to an electric field bias with relatively low loss. For such applications it is essential to use a low loss substrate such as magnesium oxide. In general, thin films have less favou
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Makela, Mark F. "Polarized Ultracold Neutrons: their transport in diamond guides and potential to search for physics beyond the standard model." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/26194.

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Experiments with polarized "ultracold neutrons" (UCN) offer a new way to measure the decay correlations of neutron beta decay; these correlations can be used to test the completeness of the Standard Model and predict physics beyond it. Ultracold neutrons are very low energy neutrons that can be trapped inside of material and magnetic bottles. The decay correlations in combination with the neutron and muon lifetimes experimentally find the first element (Vud) of the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix. The CKM matrix is a unitary transform between the mass and weak eigenstate
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Zerrouki, Alan. "Compréhension et Optimisation du Procédé de Dépôt par Électrophorèse en Mode Pulsé en Milieu Aqueux de Nanoparticules Modèles et d'Intérêt Industriel." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2024. http://www.theses.fr/2024UBFCK010.

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Ce travail de thèse s’inscrit dans le cadre d’une problématique industrielle visant à réaliser par voie électrophorétique des dépôts d’épaisseur micrométrique de matériaux d’électrodes de batterie au lithium. En raison de contraintes posées par l’utilisation de solvants organiques pour formuler à grande échelle des suspensions de nanoparticules céramiques, le procédé EPD (ElectroPhoretic Deposition) envisagé dans le contexte de ce travail fait appel à des suspensions colloïdales en milieu aqueux, ainsi qu’à une polarisation en régime pulsé afin de limiter le phénomène d’électrolyse de l’eau né
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Manuilov, Sergey. "Ferromagnetic resonance in films with growth induced anisotropy." Doctoral thesis, KTH, Integrerade komponenter och kretsar, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48248.

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This thesis discusses two different magnetic materials: epitaxial yttrium iron garnet (YIG) and heteromorphous CoFeB-SiO2 films. YIG films were grown by pulse laser deposition (PLD) techniques onto gadolinium gallium garnet (GGG) substrates of (111) and (001) crystal orientations. Using stoichiometric and overstoichiometric ablative targets, we developed two types of YIG submicron films. The films grown from overstoichiometric targets have magnetic properties slightly different from standard liquid phase epitaxy (LPE) YIGs. They also demonstrate good substrate matching and approximately 6% non
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Mammei, Russell Rene. "Thin Films for the Transport of Polarized Ultracold Neutrons for Fundamental Symmetry Study." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/28714.

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The use of ultracold neutrons (UCN) to study fundamental parameters such as the neutron lifetime and decay correlations in polarized neutron beta decay are poised to make significant contributions to our understand of the Standard Model and its extensions. To this end, the UCNA experiment is pursuing a precision measurement (0.2%) of the angular correlation between the neutron spin and the direction of emission of the electron in polarized neutron decay (the ``A'' asymmetry). The UCNA experiment makes use of the spallation-driven solid deuterium (SD2) UCN source at the Los Alamos Neutron Sc
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Magnan, Romain. "Oxyde transparent conducteur de ZnO : V à partir d'une cible de nanoparticules : de l’ablation par laser pulsé à un procédé de décharge à barrière diélectrique double fréquence à pression atmosphérique Transparent and conductive vanadium doped zinc oxide thin films by pulsed laser deposition from different targets Atmospheric pressure dual RF-LF frequency discharge: Influence of LF voltage amplitude on the RF discharge behavior Atmospheric pressure dual RF-LF frequency discharge: transition from α to α-γ-mode". Thesis, Perpignan, 2020. http://www.theses.fr/2020PERP0008.

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Cette thèse en cotutelle entre la France et le Canada a pour objectif de développer une méthode innovante d’élaboration de couches minces nano-composites de ZnO:V, basée sur la mise en vol et le dépôt de nanoparticules (NPs) de ZnO :V par des Décharges à Barrière Diélectrique (DBDs) double fréquence. Cette méthode de dépôt vise à réduire le coût de production par l’utilisation de nanoparticules synthétisées par méthode sol-gel et de DBDs dans une configuration permettant le dépôt de couches minces en continu à pression atmosphérique. Les travaux se sont déroulés en trois phases :- L’étude des
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Kolev, Vesselin Zlatanov. "Long-optical-resonator passively mode-locked laser prototype for ultra-fast pulsed laser ablation and deposition installation." Phd thesis, 2003. http://hdl.handle.net/1885/148439.

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Book chapters on the topic "Pulse mode deposition"

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Gorbunoff, André, and Oliver Jost. "Laser Ablation Synthesis of Single-Wall Carbon Nanotubes: The SLS Model." In Pulsed Laser Deposition of Thin Films. John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/9780470052129.ch24.

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S. Marjoribanks, Robin, Jinseng Tang, Thomas Dzelzainis, et al. "Ultrashort-pulse burst-mode materials processing and laser surgery." In Pulsed Laser Processing Materials [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1005152.

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Laser processing of materials and biological tissues has evolved in stages, ever since the earliest use of the laser for gross deposition of heat and for ablation. For instance, wavelength specificity was an early development that facilitated the treatment of certain biological tissues, while leaving others relatively unaffected. Ultrashort-pulse material ablation escapes the usual paradigm of heat diffusion because of the comparisons of scales: A rarefaction wave can cut through the thin layer of femtosecond-laser-heated material and carry away the absorbed energy before much heat can diffuse
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Pinchuk, Nataliia, and Oleksandr Terletskyi. "NANOSTRUCTURED COATINGS ZRN, OBTAINED BY VACUUM-ARC DEPOSITION METHOD." In Modernization of research area: national prospects and European practices. Publishing House “Baltija Publishing”, 2022. http://dx.doi.org/10.30525/978-9934-26-221-0-1.

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Nowadays increased interest is shown in ZrN coatings, which have high erosion resistance, strength in combination with a fairly high hardness. Among the various ion-plasma techniques, vacuum-arc is one of the most versa-tile processes due to the high degree of ionization of the flow of film-forming particles and good adhesion properties of coatings to the substrate. The purpose of the paper is problem of structural engineering of vacuum-arc ZrN coatings is acute in order to predictably obtain the necessary functional physical and mechanical characteristics. Methodology. The study of the struct
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Tao, Shaohu, Jianping Peng, Yuezhong Di, Kejia Liu, Kun Zhao, and Naixiang Feng. "Electrochemical Study of Potassium Fluoride in a Cryolite-Aluminum Oxide Molten Salt." In Encyclopedia of Aluminum and Its Alloys. CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000409.

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Selective and efficient electrochemical methods to characterize aluminum are necessary. Current methods are based on potentiodynamic polarization, recurrent potential double pulses, chronopotentiometry, open-circuit chronopotentiometry, and potentiostatic electrolysis, but have not been used to characterize the deposition of aluminum in Na3AlF6-Al2O3-KF molten salts. The control processes of the formation of aluminum-tungsten inter-metallic compounds, and the deposition of aluminum have been investigated by using steady-state potentiodynamic cathodic polarization curves. The dissolution loss r
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Veilmar, S., Th Schlegel, W. Pompe, and W. Brunner. "THEORETICAL MODEL OF LASER GENERATED PLASMA FOR THIN FILM DEPOSITION." In EPM 87. Energy Pulse and Particle Beam Modification of Materials. De Gruyter, 1988. http://dx.doi.org/10.1515/9783112611203-103.

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Liu, Chang, Lin Zhu, Lai-Guo Wang, and Ai-Dong Li. "Artificial Synapses Based on Atomic/Molecular Layer Deposited Bilayer-Structured Memristive Thin Films." In Memristors [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97753.

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This chapter deals with several kinds of ultrathin bilayer-structured memristors, such as Pt/Al2O3/HfO2/TiN, Pt/HfO2/HfOx/TiN, Pt/TiO2/Ti-based maleic acid (Ti-MA)/TaN, among which the asymmetric memristive functional layers were designed and prepared by atomic layer deposition (ALD) or molecular layer deposition (MLD) technique. These bilayer memristors exhibit a typical bipolar resistive switching characteristic, in accord with the space charge limited current model. Some important biologic synaptic functions have been achieved, including nonlinear transmission characteristics, spike-timing-
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Centeno-García, Elena, Joaquín Ruiz, and Alexander Iriondo. "Stratigraphic, geochemical, and isotopic constraints on tectonic and magmatic stages of the Zihuatanejo (Guerrero composite) terrane in Arteaga-Tumbiscatío, Michoacán, Mexico." In The Virtue of Fieldwork in Volcanology, Sedimentology, Structural Geology, and Tectonics—Celebrating the Career of Cathy Busby. Geological Society of America, 2025. https://doi.org/10.1130/2025.2563(15).

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ABSTRACT The Arteaga-Tumbiscatío region of the Zihuatanejo terrane forms the westernmost part of the Guerrero composite terrane. This region contains one of the most complete stratigraphic columns of the terrane. Its evolution is divided into nine main tectonic stages characterized by alternating deformational and volcanic-arc events. The oldest rocks in the region belong to the Arteaga Complex, which is made up of highly sheared and locally metamorphosed turbidites (shale, quartzose sandstone, and black chert) and volcanic siltstone that forms a sedimentary matrix with blocks of mid-ocean-rid
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Kublanovsky, Valeriy S., Oksana L. Bersirova, Yulia S. Yapontseva, et al. "Electrochemical synthesis of nanostructured super-alloys with valuable electrochemical, electrocatalytic and corrosion properties." In NEW FUNCTIONAL SUBSTANCES AND MATERIALS FOR CHEMICAL ENGINEERING. PH “Akademperiodyka”, 2021. http://dx.doi.org/10.15407/akademperiodyka.444.130.

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A study of the electrochemical formation of functional coatings by binary and ternary alloys M1M2, M1M3, M1M2M3 (where M1 is 3d6-8 metal of the iron subgroup: Fe, Co, Ni, and M2 is Mo, W; M3 is Re), from complex aqueous solutions and ionic melts. Such alloys are called "superalloys" due to a wide range of valuable physicochemical (corrosive, electrocatalytic) and functional properties and are designed to operate in extreme temperature and power modes with simultaneous exposure to an aggressive environment. The presence of rhenium in the alloy also simultaneously increases its strength and duct
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M. Iqbal, Muhammad, and Mark M. Turner. "Interaction and Transport of Liquid Droplets in Atmospheric Pressure Plasmas (APPs)." In Fundamental Research and Application of Droplet Dynamics [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105010.

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The transport of liquid droplets in atmospheric pressure plasma (APP) has been recognized as a two-phase flow. The liquid droplet introduces a perturbation in APP and under several constraints, the behavior of this perturbation is not clear during transport. As soon as the droplets interact with the APP, they become charged, which causes the droplets to evaporate. Using 1D normalized fluid model, we first describe how the liquid droplets charge and interact with helium APP. The impact of this droplet-plasma interaction is then discussed and described using 2D coupled fluid-droplet model. The n
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Conference papers on the topic "Pulse mode deposition"

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Oskirko, V. O., I. M. Goncharenko, V. A. Semenov, M. I. Azhgikhin, M. I. Goncharenko, and A. A. Solovyev. "Mixed-mode magnetron and arc deposition of aluminum oxide films." In 8th International Congress on Energy Fluxes and Radiation Effects. Crossref, 2022. http://dx.doi.org/10.56761/efre2022.c4-o-022801.

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The paper is devoted to the study of the processes of mixed-mode deposition of aluminum oxide films in oxygen and argon mixture. Mixed-mode is a new pulsed thin film deposition technology that combines magnetron sputtering and arc evaporation. The transition of the magnetron discharge to the arc occurs when the discharge current reaches the threshold value, and the arc burning time is controlled by pulse length. The paper describes the experimental equipment and the principles of controlling the parameters of a combined pulse discharge. The results of measuring the ion current density on a sub
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Kharkov, M. M., D. V. Kolodko, M. S. Kukushkina, et al. "Hot-target HiPIMS deposition of W-fuzz layers." In 8th International Congress on Energy Fluxes and Radiation Effects. Crossref, 2022. http://dx.doi.org/10.56761/efre2022.c3-p-048002.

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Porous tungsten coatings were prepared by magnetron deposition in He environment. The depositions were carried out in HiPIMS mode with a frequency of 1 kHz and a pulse duration of 300 μs. The tungsten target was thermally insulated from the water-cooled cathode. The samples were mounted on three different distances from the target. Temperature of each sample was measured with a dedicated thermocouple and recorded throughout the deposition process. The structure of resulting W-fuzz layers is analyzed and discussed. The deposition rate of tungsten fuzz in a hot-target magnetron system operated i
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Qian, Lei, Hongbo Lan, Guangming Zhang, Jiawei Zhao, and Shuting Zou. "A Novel Microscale 3D Printing Based on Electric-Field-Driven Jet Deposition." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6451.

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This paper presents an electric-field-driven (EFD) jet deposition 3D printing technique, which is based on the induced electric field and electrohydrodynamic (EHD) cone-jetting behavior. Unlike the traditional EHD-jet printing with two counter electrodes, the EFD jet 3D printing only requires a nozzle electrode to induce an electric field between the nozzle and the target substrate. Taking into account both printing accuracy and printing efficiency, two novel working modes which involve pulsed cone-jet mode and continuous cone-jet mode, are proposed for implementing multi-scale 3D printing. In
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Nuss, Martin C., D. W. Kisker, P. R. Smith, and T. E. Harvey. "High-mobility cadmium-telluride photoconductive switch generating electrical pulses of <0.5-ps duration." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.tue5.

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Electrical pulses of only 480-fs duration have been generated using polycrystalline films of CdTe grown by UV-enhanced metal organic chemical vapor deposition (MOCVD). The photoconductor was integrated in a coplanar transmission line with a 10-μm linewidth and spacing. The electrical pulses were generated in a sliding contact geometry and probed via reflection-mode electrooptic sampling in a small LiTaO3 crystal dipped into the fringing fields of the transmission line. A pulse duration of 560-fs (FWHM) with a 490-fs rise time and a 450-fs 1 /e fall time was measured. Deconvoluting the response
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Chen, Y. J., G. M. Carter, G. J. Sonek, and J. M. Ballantyne. "Nonlinear optical coupling to planar GaAs/AlGaAs waveguides." In Integrated and Guided Wave Optics. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/igwo.1986.thcc6.

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Nonlinear optical interactions in waveguides utilizing the material’s third-order nonlinear optical susceptibility X(3) is of interest for potential application, such as ultrafast optical signal processing1 and nonlinear optical switching.2,3 The X(3) can significantly modify the coupling via either a prism or grating between a radiative wave and guided mode.3 Previously, the experimental demonstrations have been limited to either poor quality waveguides4 or materials with a slow (thermal) response time.5 We report both linear and nonlinear optical grating coupling to good quality planar GaAs/
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Bittigkoffer, Lucas, Henry Roth, Martin Baumann, and Nils-Agne Feth. "Surface Functionalization of Nitinol Utilizing Ultrashort Laser Pulses." In SMST 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.smst2024p0129.

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Abstract Ultrashort pulse (USP) lasers are an established technology to manufacture nitinol medical devices. USP lasers offer a great variety of processing parameters which can be utilized for fine cutting, laser lathe and ablation of nitinol. Usually, several hundreds of kHz are used to penetrate the material with pulses of fixed energy and frequency. New USP laser sources are offering a so-called burst mode which can be used to precisely control the energy deposition into the material by adjusting the temporal pulse distribution. Depending on the applied process parameters, this leads to a c
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Mihailov, S. J., and W. W. Duley. "Double-pulsed XeCl excimer laser etching of polyimide." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.tuhh5.

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We have studied changes in the ablation threshold of polyimide by combining two subthreshold XeCl excimer laser pulses with a set time delay. Initially overlapping, the pulse pair had a combined fluence above the ablation threshold for the polymer. When the two pulses were separated in time, cessation of etching occurred in a fashion that was more intensity-dependent than fluence-dependent. For pairs of pulses whose combined fluence was near the fluence threshold quoted in the literature, separation of the pulses resulted in an unusual initiation, cessation, and reinitiation of etching of the
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Huang, Jing, Yuwen Zhang, J. K. Chen, and Mo Yang. "Modeling of Ultrafast Phase Change Processes in a Thin Metal Film Irradiated by Femtosecond Laser Pulse Trains." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12342.

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Ultrashort laser pulses can be generated in the form of a pulse train. In this paper, the ultrafast phase change processes of a 1-μm free-standing gold film irradiated by femtosecond laser pulse trains are simulated numerically. A two-temperature model coupled with interface tracking method is developed to describe the ultrafast melting, vaporization and resolidification processes. To deal with the large span in time scale, variable time steps are adopted. A laser pulse train consists of several pulse bursts with a repetition rate of 0.5∼1 MHz. Each pulse burst contains 3∼10 pulses with an int
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Fan, C. H., and J. P. Longtin. "Modeling of Moving Breakdown by Femtosecond Laser Pulses in Dielectrics." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1476.

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Abstract Laser ablation is becoming increasingly important in the fields of micromaching, thin film formation, and bioengineering applications. In laser ablation, the ablation rates and feature quality strongly depend on the size of the breakdown region in the material. This region is characterized by a high density of free electrons, which absorb a large fraction of energy from the laser pulse that results in material vaporization in solids or liquids. For nanosecond- and picosecond pulses, the breakdown region tends to form near the beam focus and then expand back along the beam path toward
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Marcu, Aurelian, Constantin Grigoriu, and Kiyoshi Yatsui. "Simplified model for RMS variation in pulsed laser deposition." In ROMOPTO 2000: Sixth Conference on Optics, edited by Valentin I. Vlad. SPIE, 2001. http://dx.doi.org/10.1117/12.432847.

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Reports on the topic "Pulse mode deposition"

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Douglas, Thomas, Matthew Sturm, Joel Blum, et al. A pulse of mercury and major ions in snowmelt runoff from a small Arctic Alaska watershed. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41203.

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Atmospheric mercury (Hg) is deposited to Polar Regions during springtime atmospheric mercury depletion events (AMDEs) that require halogens and snow or ice surfaces. The fate of this Hg during and following snowmelt is largely unknown. We measured Hg, major ions, and stable water isotopes from the snowpack through the entire spring melt runoff period for two years. Our small (2.5 ha) watershed is near Barrow (now Utqiaġvik), Alaska. We measured discharge, made 10 000 snow depths, and collected over 100 samples of snow and meltwater for chemical analysis in 2008 and 2009 from the watershed snow
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