Complexes de lanthanides pour l'optique non linéaire et la luminescence PDF Download
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Author: Katell Sénéchal
Publisher:
ISBN:
Category :
Languages : fr
Pages : 230
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Book Description
Dans cette thèse, la synthèse et les propriétés optiques non linéaires de complexes dipolaires et octupolaires à ligand bipyridines et terpyridines sont décrits.La coordination de bipyridines fonctionnalisées avec des métaux de transition (Zn, Cu et Ag), a permis de mettre en évidence l'influence du nombre de transferts de charges organisés autour du métal ainsi que l'importance du caractère accepteur de Lewis des métaux sur l'activité O.N.L. du 2nd ordre. Cette étude révèle la supériorité des octupôles par rapport aux dipôles en terme de compromis transparence / non-linéarité optique. Les premiers anions octupolaires tétraédriques actifs en O.N.L. ont aussi été élaborés. Après la mise au point des synthèses de nouvelles terpyridines annelées trifonctionnalisées, nous avons étudié la complexation de ces ligands avec des sels de lanthanides. Les premiers complexes actifs en O.N.L. ont été synthétisés et étudiés. Ceci nous a permis de montrer la participation des électrons f à l'activité O.N.L. des complexes.Enfin, nous avons étudié aussi la luminescence de complexes de lanthanides à ligand cyclen substitué par une phénanthroline qui se sont révélés être de nouveaux capteurs luminescents dépendant du pH.
Author: Katell Sénéchal
Publisher:
ISBN:
Category :
Languages : fr
Pages : 230
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Book Description
Dans cette thèse, la synthèse et les propriétés optiques non linéaires de complexes dipolaires et octupolaires à ligand bipyridines et terpyridines sont décrits.La coordination de bipyridines fonctionnalisées avec des métaux de transition (Zn, Cu et Ag), a permis de mettre en évidence l'influence du nombre de transferts de charges organisés autour du métal ainsi que l'importance du caractère accepteur de Lewis des métaux sur l'activité O.N.L. du 2nd ordre. Cette étude révèle la supériorité des octupôles par rapport aux dipôles en terme de compromis transparence / non-linéarité optique. Les premiers anions octupolaires tétraédriques actifs en O.N.L. ont aussi été élaborés. Après la mise au point des synthèses de nouvelles terpyridines annelées trifonctionnalisées, nous avons étudié la complexation de ces ligands avec des sels de lanthanides. Les premiers complexes actifs en O.N.L. ont été synthétisés et étudiés. Ceci nous a permis de montrer la participation des électrons f à l'activité O.N.L. des complexes.Enfin, nous avons étudié aussi la luminescence de complexes de lanthanides à ligand cyclen substitué par une phénanthroline qui se sont révélés être de nouveaux capteurs luminescents dépendant du pH.
Author: Frits Zernike
Publisher: Courier Corporation
ISBN: 048645360X
Category : Science
Languages : en
Pages : 212
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Book Description
Directed toward physicists and engineers interested in the device applications enabled by nonlinear optics, this text is suitable for advanced undergraduates and graduate students. Its content is presented entirely on a classical basis and requires only an elementary knowledge of quantum mechanics. The authors demonstrate how real laboratory situations can diverge from ideal theory, acquainting readers with the kinds of problems common to construction of a nonlinear device. They also offer a detailed discussion of the practical problems and characteristics of nonlinear materials, as well as the selection procedures necessary to ensure the use of good material. Their treatment begins with an introduction to the theories of linear and nonlinear optics, along with the basic ideas behind them. Succeeding chapters explore phase matching and nonlinear materials, followed by detailed treatments of second-harmonic generation, parametric up-conversion, and optical parametric amplification and oscillation. Appendixes offer a comprehensive list of materials and their properties; the text concludes with references and an index.
Author: Kiyo Tomiyasu
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 204
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Book Description
Author: C. Bréchignac
Publisher: Springer Science & Business Media
ISBN: 3540729933
Category : Science
Languages : en
Pages : 753
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Book Description
Here is a brilliant book that covers the major aspects of nanomaterials production. It integrates the many and varied chemical, material and thermo-dynamical facets of production, offering readers a new and unique approach to the subject. The mechanical, optical, and magnetic characteristics of nanomaterials are also presented in detail. Nanomaterials are a fast developing field of research and this book serves as both a reference work for researchers and a textbook for graduate students.
Author: Agnes Buka
Publisher: World Scientific
ISBN: 1848167997
Category : Science
Languages : en
Pages : 299
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Book Description
The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.
Author: Jean-Marie Basset
Publisher: John Wiley & Sons
ISBN: 3527627103
Category : Science
Languages : en
Pages : 725
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Book Description
Covering everything from the basics to recent applications, this monograph represents an advanced overview of the field. Edited by internationally acclaimed experts respected throughout the community, the book is clearly divided into sections on fundamental and applied surface organometallic chemistry. Backed by numerous examples from the recent literature, this is a key reference for all chemists.
Author: Hanieh Fattahi
Publisher: Springer
ISBN: 3319200259
Category : Science
Languages : en
Pages : 150
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Book Description
This thesis offers a thorough and informative study of high-power, high-energy optical parametric chirped pulse amplifications systems, the foundation of the next generation of femtosecond laser technology. Starting from the basics of the linear processes involved and the essential design considerations, the author clearly and systematically describes the various prerequisites of the nonlinear optical systems expected to drive attosecond physics in the coming decade. In this context, he gives an overview of methods for generating the broadband and carrier-envelope-phase stable seed pulses necessary for producing controlled electric-field waveforms in the final system; provides a guide to handling the high-power, high-energy pump lasers required to boost the pulse energy to the desired operating range; describes the design of the nonlinear optical system used to perform the amplification, including modes of operation for ultra-broadband infrared-visible pulses or narrowband (yet still ultrafast) pulses tunable over multiple octaves; and finally presents a prospective high-energy field synthesizer based upon these techniques. As such, this work is essential reading for all scientists interested in utilizing the newest generation of ultrafast systems.
Author: Igor Bezverkhyy
Publisher: Trans Tech Publications Ltd
ISBN: 3038137030
Category : Technology & Engineering
Languages : en
Pages : 600
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Book Description
The International Conference on Diffusion in Materials (DIMAT) is the benchmark conference series for diffusion in solids. DIMAT 2011 was organized by the University of Bourgogne in association with CNRS, Dijon (France). The conference showcased new results concerning theoretical tools as well as applied research approaches. Diffusion processes affect all types of materials: nanomaterials, materials for energy, metallurgy, glasses and ceramics, but each requires its own numerical tools. Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume comprises most of the contributions presented at DIMAT 2011: 4 plenary lectures delivered by famous high-level scientists plus 88 contributions in the form of keynote lectures, talks and posters.
Author: Edward G. Grimsal
Publisher:
ISBN:
Category : Barium compounds
Languages : en
Pages : 8
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Book Description
Author: Wade H. Shafer
Publisher: Springer
ISBN: 9780306341205
Category : Science
Languages : en
Pages : 320
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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis· seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac· tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 20 (thesis year 1975) a total of 10,374 theses titles from 28 Canadian and 239 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 20 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.
