Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Molecules In Superfluid Helium Nanodroplets
Download Molecules In Superfluid Helium Nanodroplets full books in PDF, epub, and Kindle. Read online Molecules In Superfluid Helium Nanodroplets ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Molecules in Superfluid Helium Nanodroplets by : Alkwin Slenczka
Download or read book Molecules in Superfluid Helium Nanodroplets written by Alkwin Slenczka and published by Springer Nature. This book was released on 2022-05-28 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book covers recent advances in experiments using the ultra-cold, very weakly perturbing superfluid environment provided by helium nanodroplets for high resolution spectroscopic, structural and dynamic studies of molecules and synthetic clusters. The recent infra-red, UV-Vis studies of radicals, molecules, clusters, ions and biomolecules, as well as laser dynamical and laser orientational studies, are reviewed. The Coulomb explosion studies of the uniquely quantum structures of small helium clusters, X-ray imaging of large droplets and electron diffraction of embedded molecules are also described. Particular emphasis is given to the synthesis and detection of new species by mass spectrometry and deposition electron microscopy.
Book Synopsis Theoretical Reaction and Relaxation Dynamics in Superfluid Helium Nanodroplets by : Miquel Blancafort Jorquera
Download or read book Theoretical Reaction and Relaxation Dynamics in Superfluid Helium Nanodroplets written by Miquel Blancafort Jorquera and published by . This book was released on 2019 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of superfluid helium has been carried out mainly by physicists. In recent years, taking advantage of the potentialities presented by superfluid helium nanodroplets (HeNDs) as inert matrices at very low temperatures (0.37 K), the chemical community became involved in its application to high-resolution spectroscopy. More recently (early 2000s), this community began to be involved in research using HeNDs to investigate chemical reactivity in this quantum solvent. As for the theoretical studies on the dynamics of physicochemical processes in HeNDs, they have been possible about five years ago and the number of theoretical dynamics studies, despite their interest, is very scarce. The main objective of this thesis is to contribute to the development of the research in this area.To introduce the reader into the topic, Chapter 1 is divided into four sections: the first one describes the properties of helium, the second one considers the history of the discovery and research carried out on the superfluidity phenomenon, the third one outlines the properties of superfluid helium nanodroplets, and the last one gives an overview of the applications and fields of study implying HeNDs.The theoretical and numerical methods used to describe superfluid liquid helium are detailed in Chapter 2. In the first section attention has been paid on the density functional theory (DFT) and its time dependent extension for real-time simulations (TDDFT). The second section describes the main density functionals used and the third section is aimed to present the numerical methods employed to perform the TDDFT calculations.The following four chapters contain the original studies carried out in this thesis. The investigation of the capture process of a Ne atom by a HeND can be found in Chapter 3. Here, the atom is treated using classical mechanics and the influence of energy and angular momentum is examined for a wide set of initial conditions. The microscopic mechanism, energy and angular momentum exchanges and vortex formation have been extensively analysed. The present contribution corresponds to the first systematic analysis of the influence of angular momentum in the capture process and vortex formation.Chapter 4 represents a natural evolution from Chapter 3 and describes the formation of a neon dimer or neon adduct inside a superfluid helium nanodroplet, treating both atoms classically. Analogously as in the previous chapter, angular momentum has also been taken into consideration and the mechanism, energy an angular momentum exchanges and vortex formation are analysed. These two chapters complement and extend two previous investigations of our group where the Ne atoms were treated using standard quantum mechanics at zero angular momentum. The contents of Chapter 4 correspond to the second theoretical investigation on bimolecular reaction dynamics in HeNDs.The following two chapters use a full quantum hybrid approach to explore rotational and vibrational energy relaxation dynamics. Chapter 5 corresponds to the first theoretical study reported so far on the rotational energy relaxation dynamics of molecules in HeNDs. This process has been studied using several isotopes of the H2 molecule (fast rotors) and considering a set of initial excitations and nanodroplet sizes.The last investigation (Chapter 6) is centred on the study of the vibrational energy relaxation in HeNDs. Thus, the influence of the energy gap between the vibrational levels, molecule-helium interaction energy and nanodroplet size on the vibrational relaxation dynamics has been analysed, taking as a reference the I2@(4He)100 doped nanodroplet which was recently studied in our group. To the best of our knowledge it is the first time that the influence of these key factors has been examined.Finally, in Chapters 7 and 8 the main conclusions and a summary in Catalan are presented.
Download or read book Nanodroplets written by Zhiming M. Wang and published by Springer Science & Business Media. This book was released on 2014-01-08 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanodroplets, the basis of complex and advanced nanostructures such as quantum rings, quantum dots and quantum dot clusters for future electronic and optoelectronic materials and devices, have attracted the interdisciplinary interest of chemists, physicists and engineers. This book combines experimental and theoretical analyses of nanosized droplets which reveal many attractive properties. Coverage includes nanodroplet synthesis, structure, unique behaviors and their nanofabrication, including chapters on focused ion beam, atomic force microscopy, molecular beam epitaxy and the "vapor-liquid- solid" route. Particular emphasis is given to the behavior of metallic nanodroplets, water nanodroplets and nanodroplets in polymer and metamaterial nanocomposites. The contributions of leading scientists and their research groups will provide readers with deeper insight into the chemical and physical mechanisms, properties, and potential applications of various nanodroplets.
Download or read book Cold Chemistry written by Olivier Dulieu and published by Royal Society of Chemistry. This book was released on 2017-12-06 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen tremendous progress in research on cold and controlled molecular collisions, both in theory and in experiment. The advent of techniques to prepare cold and ultracold molecules and ions, to store them in optical lattices or in charged quasicristalline structures, and to use them in crossed or merged beam experiments have opened many new possibilities to study the most fundamental aspects of molecular interactions. At the same time, theoretical work has made progress in tackling these problems and accurately describing quantum effects in complex systems, and in proposing viable options to control chemical reactions at ultralow energies. Through tutorials on both the theoretical and experimental aspects of research in cold and ultracold molecular collisions, this book provides advanced undergraduate students, graduate students and researchers with the foundations needed to understand this exciting field.
Book Synopsis Low Temperatures and Cold Molecules by : Ian W. M. Smith
Download or read book Low Temperatures and Cold Molecules written by Ian W. M. Smith and published by Imperial College Press. This book was released on 2008 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together, for the first time, the results of recent research in areas ranging from the chemistry of cold interstellar clouds (10-20 K), through laboratory studies of the spectroscopy and kinetics of ions, radicals and molecules, to studies of molecules in liquid helium droplets, to attempts to create molecular (as distinct from atomic) Bose-Einstein condensates.
Book Synopsis Alignment of Molecules Inside Superfluid Helium Droplets by : Mikkel Bregnhøj
Download or read book Alignment of Molecules Inside Superfluid Helium Droplets written by Mikkel Bregnhøj and published by . This book was released on 2011 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of High-resolution Spectroscopy by : Martin Quack
Download or read book Handbook of High-resolution Spectroscopy written by Martin Quack and published by John Wiley & Sons. This book was released on 2011-09-26 with total page 2236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of High-Resolution Spectroscopy has been considerably extended and even redefined in some areas. Combining the knowledge of spectroscopy, laser technology, chemical computation, and experiments, Handbook of High-Resolution Spectroscopy provides a comprehensive survey of the whole field as it presents itself today, with emphasis on the recent developments. This essential handbook for advanced research students, graduate students, and researchers takes a systematic approach through the range of wavelengths and includes the latest advances in experiment and theory that will help and guide future applications. The first comprehensive survey in high-resolution molecular spectroscopy for over 15 years Brings together the knowledge of spectroscopy, laser technology, chemical computation and experiments Brings the reader up-to-date with the many advances that have been made in recent times Takes the reader through the range of wavelengths, covering all possible techniques such as Microwave Spectroscopy, Infrared Spectroscopy, Raman Spectroscopy, VIS, UV and VUV Combines theoretical, computational and experimental aspects Has numerous applications in a wide range of scientific domains Edited by two leaders in this field Provides an overview of rotational, vibration, electronic and photoelectron spectroscopy Volume 1 - Introduction: Fundamentals of Molecular Spectroscopy Volume 2 - High-Resolution Molecular Spectroscopy: Methods and Results Volume 3 - Special Methods & Applications
Book Synopsis Biomolecular Ions in Superfluid Helium Nanodroplets by : Ana Isabel González Flórez
Download or read book Biomolecular Ions in Superfluid Helium Nanodroplets written by Ana Isabel González Flórez and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Imaging the Shapes and Dynamics of Superfluid Helium Nanodroplets by : Bruno Langbehn
Download or read book Imaging the Shapes and Dynamics of Superfluid Helium Nanodroplets written by Bruno Langbehn and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic and Molecular Beams by : Roger Campargue
Download or read book Atomic and Molecular Beams written by Roger Campargue and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1013 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title covers the state of the art in this field both theoretically and experimentally. With contributions from leading researchers including several Nobel laureates, it represents a long-lasting source of reference on all aspects of fundamental research into or using atomic and molecular beams.
Book Synopsis Low Temperatures and Cold Molecules by : Ian W. M. Smith
Download or read book Low Temperatures and Cold Molecules written by Ian W. M. Smith and published by World Scientific. This book was released on 2008 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together, for the first time, the results of recent research in areas ranging from the chemistry of cold interstellar clouds (10-20 K), through laboratory studies of the spectroscopy and kinetics of ions, radicals and molecules, to studies of molecules in liquid helium droplets, to attempts to create molecular (as distinct from atomic) Bose-Einstein condensates.
Book Synopsis Properties of H2, Ar, and Ne Clusters in Superfluid 4He Nanodroplets by :
Download or read book Properties of H2, Ar, and Ne Clusters in Superfluid 4He Nanodroplets written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate goal of this research project is to develop an experiment to probe for superfluity in large clusters of molecular hydrogen in ultra-cold helium-4 nanodroplets. Superfluidity has now been observed in a wide variety of systems and hydrogen is a good candidate to exhibit this macroscopic quantum phenomenon in a molecular system. In this thesis, two major advances were made enroute to the eventual search for superfluidity in bulk clusters of molecular hydrogen. 1. In the first advance, the fluidity of supercooled molecular H2 was investigated in helium-4 nanodroples (~ 105 atoms) at 0.38 K. To clearly demonstrate that the H2 clusters are fluxional, or fluid-like, separate studies of argon and neon clusters were also made for comparison. To probe the behavior of the clusters, a single tetracene probe molecule was also inserted into the droplet and the laser induced fluorescence (LIF) from the tetracene was studied as a function of the cluster size and the pickup method. In the prior pickup method, the cluster species is added to the 4He droplet before to the probe molecule and in the post pickup method, the tetracene is added and then the cluster species is added. Due to the difference in the pickup order, the configuration of the probe molecule and the cluster species can differ. The observed spectral shift of tetracene LIF in the presence of the cluster species was studied for both pickup methods. For Ar and Ne clusters, the spectral shifts from the prior and post pickup methods show clear differences. This observation suggests that for prior pickup, the tetracene molecule attaches to the surface of the cluster and does not penetrate into the centre of the cluster and we conclude that the Ar and Ne clusters are not fluid-like in the helium droplets. For para-hydrogen and normal-hydrogen the LIF spectra of tetracene are independent of pickup order and we conclude that the supercooled H2 clusters remain fluid-like at 0.38 K. 2. The second advance made in thi.
Book Synopsis Handbook of Nanophysics by : Klaus D. Sattler
Download or read book Handbook of Nanophysics written by Klaus D. Sattler and published by CRC Press. This book was released on 2016-04-19 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1990s, nanoparticles and quantum dots began to be used in optical, electronic, and biological applications. Now they are being studied for use in solid-state quantum computation, tumor imaging, and photovoltaics. Handbook of Nanophysics: Nanoparticles and Quantum Dots focuses on the fundamental physics of these nanoscale materials and struct
Book Synopsis Journal of Experimental and Theoretical Physics by :
Download or read book Journal of Experimental and Theoretical Physics written by and published by . This book was released on 2005 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Limitations of Superfluid Helium Droplets as Host System Revealed by Electronic Spectroscopy of Embedded Molecules by : Tobias Premke
Download or read book Limitations of Superfluid Helium Droplets as Host System Revealed by Electronic Spectroscopy of Embedded Molecules written by Tobias Premke and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamical Processes in Atomic and Molecular Physics by : Gennadi Ogurtsov
Download or read book Dynamical Processes in Atomic and Molecular Physics written by Gennadi Ogurtsov and published by Bentham Science Publishers. This book was released on 2012 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomic and molecular physics underlie a basis for our knowledge of fundamental processes in nature and technology and in such applications as solid state physics, chemistry and biology. In recent years, atomic and molecular physics has undergone a revolutionary change due to great achievements in computing and experimental techniques. As a result, it has become possible to obtain information both on atomic and molecular characteristics and on dynamics of atomic and molecular processes. This e-book highlights the present state of investigations in the field of atomic and molecular physics. Recent theoretical developments as well as new discoveries and observations are discussed. the Book should be of interest to students studying atomic and molecular physics and specialists in related fields of science and technology.
Book Synopsis Ions and Ionic Compounds in Helium Nanodroplets by : William K. Lewis
Download or read book Ions and Ionic Compounds in Helium Nanodroplets written by William K. Lewis and published by . This book was released on 2005 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
