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This book covers new research on LiNbO3 including current studies on intrinsic and extrinsic point defects and the contribution of intrinsic defects to photoinduced charge transport. Applications of this material are also discussed.
This book covers new research on LiNbO3 including current studies on intrinsic and extrinsic point defects and the contribution of intrinsic defects to photoinduced charge transport. Applications of this material are also discussed.
The use of lithium niobate in signal filtering in TV sets and video cassette recorders is well established and it is finding increased application in optoelectronic modulation devices in DWDM (dense wavelength division multiplexing) fibre optic systems. This fully illustrated volume brings electronic engineers, materials scientists and physicists up to date by enlisting the expertise of active researchers and presenting their considered reviews.
Lithium niobate crystals have a number of unique properties. Lithium niobate is at the same time a ferroelectric, piezoelectric, pyroelectric, and has high nonlinearly optical and electro-optical coefficients and photorefractive sensitivity. These properties enable these crystals to be used widely in optical and acoustic devices, and photorefractive sensitivity, enhanced by doping with transitional metals, offers new possibilities of using lithium niobate as a recording holographic medium. These properties are determined by the crystal structure of lithium niobate sensitive to physical and chemical effects. Special attention is given in the book to physico-chemical features of technology, disruption of stoichiometry in these crystals and detection of this disruption by physical methods. At the same time, the ideas and methods proposed in the book can be used in technology of other crystals.
This book is a collection of research papers that describe some of the latest research on lithium niobate, which is an important material with many technological applications. The papers fall into three sections, which respectively consider the relationship between photorefractive properties and the defect structure of lithium niobate, powder preparation using a wet chemistry method and high-energy ball-milling technique, and finally the investigation of the domain structures, stability and conduction, and applications in waveguide devices.
The present volume "New Trends in Lithium Niobate: From Bulk to Nanocrystals" contains the materials of a Special Issue of the MDPI journal Crystals dedicated to the memory of Prof. Dr. Ortwin F. Schirmer and provides a new synopsis of his research focusing on LiNbO3. It also includes recent developments, exemplifying the continued interest in this outstanding ferroelectric, non-linear optical and holographic crystal as a workhorse for testing and realizing new ideas and applications. This book starts with reviews on intrinsic and extrinsic crystal defects in LiNbO3 of single-crystal, thin-film or nano-powder forms, studied by various optical, magnetic resonance and nuclear methods, clarifying in particular the reasons for the suppression of anion vacancy formation upon thermal reduction, mechano-chemical processing or irradiations of various types. The reviews are followed by research papers on the experimental and theoretical investigation of small polarons, together with recent results on the properties of Li(Nb, Ta)O3 mixed crystals. Among the various contributions dealing with nonlinear optical applications, papers on device development, entangled photon pair generation and thin films on the Lithium Niobate On Insulator (LNOI) platform can also be found.