Theory of Nonlinear Propagation of High Harmonics Generated in a Gaseous Medium establishes the theoretical tools to study High-Order Harmonic Generation (HHG) by intense ultrafast infrared lasers in atoms and molecules. The macroscopic propagation of both laser and high-harmonic fields is taken into account by solving Maxwell's wave equations, while the single-atom or single-molecule response is treated with a quantitative rescattering theory by solving the time-dependent Schrodinger equation.
This book demonstrates for the first time that observed experimental HHG spectra of atoms and molecules can be accurately reproduced theoretically when precise experimental conditions are known. The macroscopic HHG can be expressed as a product of a macroscopic wave packet and a photorecombination cross section, where the former depends on laser and experimental conditions while the latter is the property of target atoms or molecules. The factorization makes it possible to retrieve microscopically atomic or molecular structure information from the measured macroscopic HHG spectra.
This book also investigates other important issues about HHG, such as contributions from multiple molecular orbitals, the minimum in the HHG spectrum, the spatial mode of laser beams, and the generation of an isolated attosecond pulse. Additionally, this book presents the photoelectron angular distribution of aligned molecules ionized by the HHG light.
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This volume presents a comprehensive and up-to-date overview of major developments in the study of how phraseology is used in a wide range of different legal and institutional contexts
Phraseology is becoming increasingly important in a wide range of fields. This recent interest has mainly been sparked by the development of corpus linguistics research. Yet, there have been relatively few empirical studies of word combinations in the domain of law and in the many different contexts where legal discourse is used. This book seeks to address this gap by presenting some of the latest developments in the study of this linguistic phenomenon from a corpus-based perspective. The volume draws on current research in legal phraseology from a variety of perspectives: translation, comparative/contrastive studies, terminology, lexicography, discourse analysis and forensic linguistics. It contains contributions from leading experts in the field, focusing on a wide range of issues amply illustrated through in-depth corpus-informed analyses and case studies. Most contributions to this book are multilingual, featuring different legal systems and legal languages.
The volume will be a valuable resource for linguists interested in phraseology as well as lawyers and legal scholars, translators, lexicographers, terminologists and students who wish to pursue research in the area.
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