Étude des mécanismes d'ablation laser par impulsions ultra-courtes à l'aide de la dynamique moléculaire PDF Download

Author: Danny Perez
Publisher:
ISBN:
Category :
Languages : en
Pages : 140

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Author: Danny Perez
Publisher: Montréal : Service des archives, Université de Montréal, Section Microfilm
ISBN:
Category :
Languages : en
Pages : 140

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Author: Karine Gouriet
Publisher:
ISBN:
Category :
Languages : fr
Pages : 166

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Le but de cette étude est de comprendre la formation et l’évolution des nano-agrégats créés lors de l’ablation laser à courtes impulsions. L’ablation du matériau, la formation et l’évolution du panache sont simulées à partir d’un modèle combinant la dynamique moléculaire (DM) et la technique de simulation directe de Monte Carlo (DSMC). L’influence des paramètres des agrégats et du milieu gazeux entourant l’agrégat sur ses processus d’évaporation et de condensation est analysée au moyen de la DM. Les taux d’évaporation et de condensation obtenus sont directement transférés à la partie DSMC du modèle combiné. Enfin, plusieurs simulations DM-DSMC de l’expansion du panache à grande échelle démontrent la dynamique du panache et l’évolution des agrégats. Deux mécanismes d’évolution d’agrégats sont mis en évidence : par éjection du matériau et par les collisions lors de l’expansion du panache. Une comparaison de nos résultats avec les expériences montre un bon accord pour la prédiction de la distribution en taille des agrégats

Author: Maxime Gill-Comeau
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659

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This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Author: Edward A. Metzbower
Publisher: ASM International(OH)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 286

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Author: International Atomic Energy Agency
Publisher: International Atomic Energy Agency
ISBN: 9789201063205
Category : Technology & Engineering
Languages : en
Pages : 72

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This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.

Author: Sébastien Forget
Publisher: Springer
ISBN: 3642367054
Category : Science
Languages : en
Pages : 179

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Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.

Author: Fabien Bretenaker
Publisher: World Scientific
ISBN: 9814612421
Category : Science
Languages : en
Pages : 185

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This unique book provides an overview of the principle and applications of lasers enriched with numerous illustrations.Being over fifty years old, lasers continue to amaze us. Their performance characteristics are constantly reaching new limits, and the scope of their applications continues to expand. Yet, it took years of effort by teams of physicists to transform the fundamental notions of Einstein into the first experimental beam of laser light. And history is still going on as fundamental research is now triggered by its remarkable properties.This book addresses every aspects of laser light, from its fundamental principles to its industrial applications, at a level particularly suited for high school teachers, students, and anybody curious about science and technology.

Author: Canada. Patent Office
Publisher:
ISBN:
Category : Copyright
Languages : en
Pages : 1070

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