Search results for: ULTRAFAST LASER

• APPLICATION OF ULTRAFAST GAS CHROMATOGRAPHY TO RECOGNIZE ODOR NUISANCE

  Publication

  • J. Gębicki
  • T. Dymerski
  • J. Namieśnik

  - Environment Protection Engineering - Year 2016

  Potentialities of ultrafast gas chromatography applied to periodical monitoring of odor nuisance originating from a municipal landfill have been examined. The results of investigation on classification of the atmospheric air samples collected in a vicinity of the landfill during winter and summer season have been presented. The investigation was performed using ultrafast gas chromatography of Fast/Flash GC type HERACLES II by Alpha...

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• Influence of laser melting on surface layer properties of titanium alloy Ti6Al4V

  Publication

  • A. Ossowska
  • A. Zieliński
  • M. Buczek

  - JOURNAL OF BIOMECHANICS - Year 2010

  In time of rapid technology and medicine progress, implants are becoming more widely used in the human body, ranging from dental implants, stabilizing plates, screws, orthopaedic prostheses. For example, there are many types of hip prostheses used for hip replacement as well as various types of materials used for these orthopaedic prostheses. Properties of titanium alloys used in hip prostheses combined with good strength properties,...

• Microstructure and wear of cast aluminium alloy with laser modified surface layer

  Publication

  • W. Serbiński
  • J. Łubiński
  • K. Druet

  - Advances in Materials Science - Year 2003

  przedstawiono wyniki badań zużycia przez tarcie przetopionego laserowo stopuAlSi13MgCuNi w warunkach tribologicznych. Wykazano, iż zużycie i współczyn-nik tarcia są zależne od parametrów obróbki laserowej w warunkach kriogeni-cznych.

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• Influence of Laser Treatment on Microstructure of Surface Layer of the Ti-6Al-4V Alloy

  Publication

  • W. Serbiński
  • A. Zieliński
  • A. Dziadoń
  • M. Jażdżewska

  - Year 2007

  Przedstawiono mikrostrukturę powierzchni, przekroju i przełomu warstwy wierzchniej stopu Ti-6Al-4V uzyskanej po nadtapianiu laserem w różnym środowisku. Stwierdzono wzrost mikrotwardości stopu w warstwie nadtopionej, rozdrobnienie ziarna, a także tworzenie azotków tytanu i mikropęknięć skutkiem obecności znacznych naprężeń własnych. Grubość wytworzonych warstw osiągała wartość 1,5 mm.

• Laser assisted forming of the surface layer of Al-Si alloy at cryogenic conditions.

  Publication

  • W. Serbiński
  • A. Zieliński
  • T. Wierzchoń

  - Year 2004

  W artykule przedstawiono wpływ powierzchniowego laserowego przetapiania w warunkach kriogenicznych na mikrostrukturę, mikrotwardość i własności korozyjne stopu AlSi13Mg1CuNi. Stwierdzono korzystny wpływ obróbki laserowej na mikrostrukturę, mikrotwardość i odporność na zużycie ścierne badanego stopu aluminium.

• The phase composition of the surface layer of laser melted Ti-6Al-4V bioalloy

  Publication

  • B. Świeczko-Żurek
  • M. Jażdżewska
  • A. Zieliński

  - Engineering of Biomaterials / Inżynieria Biomateriałów - Year 2006

  Zastosowanie metody obróbki laserowej stopów Ti zwiekszyły twardość i odporność stopu na korozję. Jednakże uzyskane warstwy były stosunkowo cieńkie. W pracy zastosowano laser o dużej mocy dla stopu schłodzonego w ciekłym azocie, aby uzyskać grubszą warstwę, która w strefie zewnętrznej złożona będzie z tlenku i azotku tytanu, ważnych faz w biostopach.

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• Laser Therapy

  Journals

  ISSN: 0898-5901

• Wear Resistance Enhancement of Al6061 Alloy Surface Layer by Laser Dispersed Carbide Powders

  Publication

  • R. Jendrzejewski
  • J. Łubiński
  • G. Śliwiński

  - Materials - Year 2020

  In this paper, results of the experimental study on improving wear resistance in sliding friction of Al-based alloy are presented. The technique used involves the formation of a metal matrix composite (MMC) in the alloy surface layer by laser dispersion of carbide powders such as WC, TiC and SiC. For WC and TiC MMC surface coatings fabricated under conditions typical for most of the technologically relevant solid-state lasers (wavelength...

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• Neural Networks Based on Ultrafast Time-Delayed Effects in Exciton Polaritons

  Publication

  • R. Mirek
  • A. Opala
  • M. Furman
  • M. Król
  • K. Tyszka
  • B. Seredyński
  • W. Pacuski
  • J. Suffczyński
  • J. Szczytko
  • M. Matuszewski
  • B. Piętka

  - Physical Review Applied - Year 2022

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• Ultrafast high-temperature sintering (UHS) of cerium oxide-based compound

  Publication

  • A. Kabir
  • B. Lemieszek
  • J. Karczewski
  • E. De Bona
  • M. Varenik
  • S. Molin
  • M. Biesuz

  - Open Ceramics - Year 2024

  Ultrafast high-temperature sintering (UHS) is an innovative sintering technique that can densify ceramics in a few seconds, dramatically reducing the carbon footprint and firing costs. In this work, the feasibility of applying UHS in Gd-doped ceria (GDC) and GDC-Er-stabilized bismuth oxide (ESB) composite powders was investigated. At high UHS currents (22-24 A), a fully dense GDC sample with a large grain size was obtained. Nonetheless,...

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• On the Microstructure, Microhardnessand Wear Behavior of Gray Cast Iron Surface Layer after Laser Strengthening

  Publication

  • E. Feldshtein
  • O. Devojno
  • S. Wojciechowski
  • M. Kardapolava
  • I. Kasiakova

  - Materials - Year 2022

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• Formation of surface layer in metal matrix composite A359/20SiCP during laser assisted turning

  Publication

  • D. Przestacki
  • P. Szymanski
  • S. Wojciechowski

  - COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING - Year 2016

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• Ordered titania nanotubes layer selectively annealed by laser beam for high contrast electrochromic switching

  Publication

  • K. Siuzdak
  • M. Szkoda
  • M. Sawczak
  • J. Karczewski
  • J. Ryl
  • A. Cenian

  - THIN SOLID FILMS - Year 2018

  The phase conversion from amorphous into crystalline one in the selected area of as-anodized titania nanotubes was achieved via laser treatment. The optimized processing parameters enable fast, one-minute crystallization of titania within an area limited by a shadow mask and without any morphology damage of ordered TiO2 tubular film. The laser annealed titania nanotubes could be easily overgrown by a conducting polymer without...

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• OPTICS AND LASER TECHNOLOGY

  Journals

  ISSN: 0030-3992 , eISSN: 1879-2545

• Ultrafast Intramolecular Relaxation and Wave-Packet Motion in a Ruthenium-Based Supramolecular Photocatalyst

  Publication

  • M. WäCHTLER
  • J. Guthmuller
  • S. Kupfer
  • M. Maiuri
  • D. Brida
  • J. Popp
  • S. Rau
  • G. Cerullo
  • B. Dietzek

  - CHEMISTRY-A EUROPEAN JOURNAL - Year 2015

  The hydrogen-evolving photocatalyst [(tbbpy)2 Ru(tpphz)Pd(Cl)2 ](2+) (tbbpy=4,4'-di-tert-butyl-2,2'-bipyridine, tpphz=tetrapyrido[3,2-a:2',3'-c:3'',2''-h:2''',3'''-j]phenazine) shows excitation-wavelength-dependent catalytic activity, which has been correlated to the localization of the initial excitation within the coordination sphere. In this contribution the excitation-wavelength dependence of the early excited-state relaxation...

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• Some coatings of high cavitation resistance produced by CO2 laser beam. XIV International Symposium on Gas Flow, Chemical Lasers and High Power Lasers.

  Publication

  • B. G. Gireń
  • M. Szkodo

  - Proceedings of SPIE - Year 2003

  Przedstawiono wyniki badań odporności kawitacyjnej stali 2H13, 45 i żelaza Armco po laserowym stopowaniu ich powierzchni różnymi kompozycjami proszków Co, Mo, Ni, Mn i Cr, Ti. Wykazano różne własności kawitacyjne otrzymanych warstw w zależności od otrzymanej mikrostruktury.

• Surface Layer Properties of Sintered Ferritic Stainless Steel Remelted and Alloyed with FeNi and Ni by HPDL Laser

  Publication

  • Z. Brytan
  • M. Bonek
  • L. Dobrzański
  • W. Pakieła

  - Advanced Materials Research - Year 2011

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• Laser and Optoelectronics Progress

  Journals

  ISSN: 1006-4125

• Infrared and Laser Engineering

  Journals

  ISSN: 1007-2276

• JOURNAL OF LASER APPLICATIONS

  Journals

  ISSN: 1042-346X , eISSN: 1938-1387

• LASER AND PARTICLE BEAMS

  Journals

  ISSN: 0263-0346 , eISSN: 1469-803X

• LASER FOCUS WORLD

  Journals

  ISSN: 1043-8092

• Laser & Photonics Reviews

  Journals

  ISSN: 1863-8880 , eISSN: 1863-8899

• LASER PHYSICS LETTERS

  Journals

  ISSN: 1612-2011 , eISSN: 1612-202X

• Effect of hybrid modification by ceramic layer formation in MAO process and laser remelting on the structure of titanium bio-alloy Ti13Nb13Zr

  Publication

  • J. Sypniewska
  • M. Szkodo
  • B. Majkowska-Marzec
  • A. D. Mielewczyk-Gryń

  - CERAMICS INTERNATIONAL - Year 2023

  To improve the biological properties of titanium alloy Ti13Nb13Zr, hybrid modifications involving micro-arc oxidation (MAO) and Nd: YAG laser remelting were carried out in two combinations. The first consisted of laser modification before the production of the ceramic layer by the micro-arc oxidation process, and the second combination involved Nd: YAG laser modification after the MAO process. The creation of developed surface...

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• Cavitation resistance of OH18N9 steel alloyed with vaidus amount of TiC or Mn by means of laser beam. XIV International Symposium on Gas Flow, Chemical Lasers and High Power Lasers.

  Publication

  • M. Szkodo
  • B. G. Gireń

  - Proceedings of SPIE - Year 2003

  Przedstawiono badania odporności kawitacyjnej stali OH18N9T po laserowym stopowaniu jej powierzchni węglikiem TiC oraz manganem. Wykazano, że wzbogacenie obrabianej stali manganem powoduje przemiany fazowe pod wpływem działania obciążeń kawitacyjnych, co przyczynia się do wzrostu odporności kawitacyjnej. Wzmacnianie stali węglikiem TiC powoduje natomiast zanik zdolności stali do wzmacniania odkształceniowego.

• Ultrafast degradation of brilliant cresyl blue under hydrodynamic cavitation based advanced oxidation processes (AOPs)

  Publication

  • E. Çako
  • K. D. Gunasekaran
  • R. D. Cheshmeh Soltani
  • G. Boczkaj

  - Water Resources and Industry - Year 2020

  The study highlights effectiveness of hydrodynamic cavitation (HC) in the degradation of effluents polluted by Brilliant Cresyl Blue (BCB) dye. Optimal process parameters were cavitation number 0.27, inlet pressure 1.70 bar, temperature 20 °C and pH 7. The efficiency of HC was investigated in combination with other advanced oxidation processes, including the addition of external oxidants (hydrogen peroxide, ozone, and sodium persulfate)...

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• Towards Promotion of Graphene/Titania‐Based Electrode via Ultrafast and Self‐Expansion Reduction for Li‐ion Battery

  Publication

  • T. Kędzierski
  • D. Baranowska
  • B. Zielińska
  • E. Mijowska

  - ChemElectroChem - Year 2023

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• Ultrafast self-expanded reduced graphene oxide and 2D MoS2 based films as anode in Li-ion battery

  Publication

  • T. Kędzierski
  • K. Wenelska
  • D. Bęben
  • B. Zielińska
  • E. Mijowska

  - Electrochimica Acta - Year 2022

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• LASERS IN ENGINEERING

  Journals

  ISSN: 0898-1507 , eISSN: 1029-029X

• Laser technology 2012

  Publication

  • R. Romaniuk
  • J. Gajda
  • R. S. Romaniuk

  - Year 2013

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• PHOTOMEDICINE AND LASER SURGERY

  Journals

  ISSN: 1549-5418 , eISSN: 1557-8550

• JOURNAL OF RUSSIAN LASER RESEARCH

  Journals

  ISSN: 1071-2836 , eISSN: 1573-8760

• Journal of Cosmetic and Laser Therapy

  Journals

  ISSN: 1476-4172 , eISSN: 1476-4180

• Photobiomodulation Photomedicine and Laser Surgery

  Journals

  eISSN: 2578-5478

• Journal of Laser Micro Nanoengineering

  Journals

  ISSN: 1880-0688

• Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion battery

  Publication

  • E. I. Mijowska
  • K. A. Wenelska
  • T. A. Kędzierski
  • D. Bęben

  - Frontiers in Chemistry - Year 2023

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• Defect engineering, microstructural examination and improvement of ultrafast third harmonic generation in GaZnO nanostructures: a study of e-beam irradiation

  Publication

  • A. Antony
  • P. P.
  • I. Kityk
  • K. Ozga
  • J. Jedryka
  • G. Myronchuk
  • S. Kulkarni
  • G. Sanjeev
  • V. Petwal
  • V. Verma
  • J. Dwivedi

  - PHYSICAL CHEMISTRY CHEMICAL PHYSICS - Year 2020

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• Sandwich-type architecture film based on WS2 and ultrafast self-expanded and reduced graphene oxide in a Li-ion battery

  Publication

  • K. Wenelska
  • T. Kędzierski
  • D. Bęben
  • E. Mijowska

  - Frontiers in Chemistry - Year 2023

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• LASER PHYSICS

  Journals

  ISSN: 1054-660X , eISSN: 1555-6611

• Development of laser technology in Poland

  Publication

  • J. Gajda
  • R. Romaniuk
  • R. S. Romaniuk

  - Year 2010

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• Laser Technology and Applications 2012

  Publication

  • R. Romaniuk
  • J. Gajda
  • R. S. Romaniuk

  - Kwartalnik Elektroniki i Telekomunikacji - Year 2013

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• InGaN trapered laser diodes

  Publication

  • S. Stanczyk
  • A. Kafar

  - ELECTRONICS LETTERS - Year 2012

  W pracy zaprezentowano rezultaty badan nad diodami laserowymi InGaN ze zwężającym się kanałem. Kąty kanałów zmieniane były w zakresie 2 -5 stopni, jak również zmieniana była długość kanału. Wykazano, że w przypadku optymalnych parametrów, parametr M2 (M kwadrat) opisujący odtępstwa wiązki od krzywej Gaussa, wynosił 2.1 przy mocy optycznej 200 mW.

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• THE USE OF ULTRAFAST GAS CHROMATOGRAPHY FOR CLASSIFICATION OF PLUM SPIRITS = SPOSÓB WYKORZYSTANIA ULTRASZYBKIEJ CHROMATOGRAFII GAZOWEJ DO KLASYFIKACJI OKOWIT ŚLIWKOWYCH

  Publication

  • M. Śliwińska
  • P. Wiśniewska
  • T. Dymerski
  • J. Gębicki
  • J. Namieśnik

  - Year 2014

  Stan środowiska ma znaczny wpływ na jakość upraw. W konsekwencji występowanie zanieczyszczeń w powietrzu ma istotny wpływ na jakość żywności. W skutek złego stanu powietrza zewnętrznego i wewnętrznego zmieniają się m.in. walory sensoryczne i zdrowotne niektórych produktów spożywczych. Z tego powodu należy nieustannie monitorować stan środowiska za pomocą m.in. nowoczesnej aparatury analitycznej jakim jest elektroniczny nos. W...

• Comparison of an Electronic Nose Based on Ultrafast Gas Chromatography, Comprehensive Two-Dimensional Gas Chromatography, and Sensory Evaluation for an Analysis of Type of Whisky

  Publication

  • P. Wiśniewska
  • M. Śliwińska
  • T. Dymerski
  • W. Wardencki
  • J. Namieśnik

  - Journal of Chemistry - Year 2017

  Whisky is one of the most popular alcoholic beverages. There are many types of whisky, for example, Scotch, Irish, and American whisky (called bourbon). The whisky market is highly diversified, and, because of this, it is important to have a method which would enable rapid quality evaluation and authentication of the type of whisky. The aim of this work was to compare 3 methods: an electronic nose based on the technology of ultrafast...

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• Laser Thermal Oxidation by Ytterbium-Doped Fibre Laser of the Hot and Cold-Rolled Stainless Steel Surface

  Publication

  • Z. Brytan
  • W. Pakieła

  - Solid State Phenomena - Year 2020

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• Laser reflectance interferometry system with a 405 nm laser diode for in-situ measurement of CVD diamond thickness

  Publication

  • M. Kraszewski
  • R. Bogdanowicz

  - Metrology and Measurement Systems - Year 2013

  In situ monitoring of the thickness of thin diamond films during technological processes is important because it allows better control of deposition time and deeper understanding of deposition kinetics. One of the widely used techniques is laser reflectance interferometry (LRI) which enables non-contact measurement during CVD deposition. The authors have built a novel LRI system with a 405 nm laser diode which achieves better...

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• Development of laser technology in Poland: 2016

  Publication

  • Z. Jankiewicz
  • J. Jabczyński
  • R. Romaniuk
  • R. S. Romaniuk

  - Year 2016

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• Development of laser technology in Poland: 2018

  Publication

  • R. Romaniuk
  • J. Jabczyński
  • R. S. Romaniuk

  - Year 2018

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• POLFEL - Free Electron Laser in Poland

  Publication

  • R. Romaniuk
  • R. S. Romaniuk

  - Photonics Letters of Poland - Year 2009

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