Motion Symmetry Spectroscopy Of Chiral Nanostructures

Author : Johannes Sachs
Publisher : Springer Nature
Page : 127 pages
File Size : 42,9 Mb
Release : 2022-01-03
Category : Science
ISBN : 9783030886899

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Motion, Symmetry & Spectroscopy of Chiral Nanostructures by Johannes Sachs Pdf

This book focuses on complex shaped micro- and nanostructures for future biomedical and sensing applications that were investigated by both theory and experiments. The first part of the book explores rotation-translation coupling of artificial microswimmers at low Reynolds numbers. Usually corkscrew shapes, i.e chiral shapes, are considered in such experiments, due to their inspiration from nature. However, the analysis of the relevant symmetries shows that achiral objects can also be propulsive, which is experimentally demonstrated for the first time. In the second part, a new single-particle spectroscopy technique was developed and the role of symmetry in such measurements is carefully examined. Spectra stemming from one individual nanoparticle that is moving freely in bulk solution, away from a surface, and only due to Brownian motion, are presented. On that basis, the rotationally averaged chiroptical spectrum of a single nanoparticle is measured - a novel observable that has not been accessible before.

Author : Ivan Fernandez-Corbaton
Publisher : MDPI
Page : 144 pages
File Size : 43,6 Mb
Release : 2020-12-10
Category : Computers
ISBN : 9783039365692

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Duality Symmetry by Ivan Fernandez-Corbaton Pdf

Symmetry is one of the most general concepts in physics. Symmetry arguments are used to explain and predict observations at all length scales, from elementary particles to cosmology. The generality of symmetry arguments, combined with their simplicity, makes them a powerful tool for both fundamental and applied investigations. In electrodynamics, one of the symmetries is the invariance of the equations under exchange of electric and magnetic quantities. The continuous version of this symmetry is most commonly known as electromagnetic duality symmetry. This concept has been accepted for more than a century, and, throughout this time, has influenced other areas of physics, like high energy physics and gravitation. This Special Issue is devoted to electromagnetic duality symmetry and other vareities of dualities in physics. It contains four Articles, one Review and one Perspective. The context of the contributions ranges from string theory to applied nanophotonics, which, as anticipated, shows that duality symmetries in general and electromagnetic duality symmetry in particular are useful in a wide variety of physics fields, both theoretical and applied. Moreover, a number of the contributions show how the use of symmetry arguments and the quantification of symmetry breaking can successfully guide our theoretical understanding and provide us with guidelines for system design.

Author : Eugene Kamenetskii
Publisher : Springer Nature
Page : 587 pages
File Size : 55,7 Mb
Release : 2021-03-27
Category : Science
ISBN : 9783030628444

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Chirality, Magnetism and Magnetoelectricity by Eugene Kamenetskii Pdf

This book discusses theoretical and experimental advances in metamaterial structures, which are of fundamental importance to many applications in microwave and optical-wave physics and materials science. Metamaterial structures exhibit time-reversal and space-inversion symmetry breaking due to the effects of magnetism and chirality. The book addresses the characteristic properties of various symmetry breaking processes by studying field-matter interaction with use of conventional electromagnetic waves and novel types of engineered fields: twisted-photon fields, toroidal fields, and magnetoelectric fields. In a system with a combined effect of simultaneous breaking of space and time inversion symmetries, one observes the magnetochiral effect. Another similar phenomenon featuring space-time inversion symmetries is related to use of magnetoelectric materials. Cross-coupling of the electric and magnetic components in these material structures, leading to the appearance of new magnetic modes with an electric excitation channel – electromagnons and skyrmions – has resulted in a wealth of strong optical effects such as directional dichroism, magnetochiral dichroism, and rotatory power of the fields. This book contains multifaceted contributions from international leading experts and covers the essential aspects of symmetry-breaking effects, including theory, modeling and design, proven and potential applications in practical devices, fabrication, characterization and measurement. It is ideally suited as an introduction and basic reference work for researchers and graduate students entering this field.

Author : Zhiyong Tang
Publisher : John Wiley & Sons
Page : 300 pages
File Size : 46,7 Mb
Release : 2018-03-05
Category : Technology & Engineering
ISBN : 9783527337576

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Chiral Nanomaterials by Zhiyong Tang Pdf

Thorough and up-to-date, this book presents recent developments in this exciting research field. To begin with, the text covers the fabrication of chiral nanomaterials via various synthesis methods, including electron beam lithography, ion beam etching, chemical synthesis and biological DNA directed assembly. This is followed by the relevant theory and reaction mechanisms, with a discussion of the characterization of chiral nanomaterials according to the optical properties of metal nanoparticles, semiconductor nanocrystals, and nanoclusters. The whole is rounded off by a summary of applications in the field of catalysis, sensors, and biomedicine. With its comprehensive yet concise coverage of the whole spectrum of research, this is invaluable reading for senior researchers and entrants to the field of nanoscience and materials science.

Author : Anonim
Publisher : Elsevier
Page : 312 pages
File Size : 44,5 Mb
Release : 2012-03-29
Category : Technology & Engineering
ISBN : 9780080982113

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Metal Nanoparticles and Nanoalloys by Anonim Pdf

The field of nanoscience has undergone tremendous growth in the past decade as the number of applications of nanoparticles and nanostructured materials have proliferated. Metal nanoparticles have attracted particular interest due to their potential for applications in areas as diverse as catalysis, medicine and opto-electronics. The chemical and physical properties of metal nanoparticles can vary smoothly or discontinuously with nanoparticle size, depending on the size regime and the property. In the case of bi- or multimetallic nanoparticles ("nanoalloys"), these properties also depend on the elemental composition and the chemical ordering – how the metals are distributed in the nanoparticles.It is this tunability of behavior that makes metal nanoparticles and nanoalloys so versatile and appealing. This book begins with a tutorial introducing the theoretical ideas and models that have been developed to understand metal nanoparticles. It gives an overview of experimental methods for generating and characterizing metal nanoparticles and nanoalloys and of their properties and applications, providing an introduction to material covered in more depth in subsequent chapters. A major theme of all the chapters is the effect of nanoparticle size, shape and surface chemistry on their properties – especially optical and catalytic properties. A unified discussion of the inter-relations between modelling, synthesis and physical properties of nanoparticles and nanoalloys A discussion of the most promising new catalytic and photocatalytic applications of nanoparticles and the approaches used to achieve these goals A tutorial introduction which provides a basis for understanding the subsequent specialized chapters

Author : Roberto Passante
Publisher : MDPI
Page : 162 pages
File Size : 44,8 Mb
Release : 2020-04-01
Category : Science
ISBN : 9783039285242

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New Trends in Quantum Electrodynamics by Roberto Passante Pdf

This book collects research and review articles covering some recent trends in nonrelativistic quantum electrodynamics, specifically the interaction of atoms or molecules within the quantum electromagnetic radiation field and the related physical effects. Specific topics covered are: two- and three-body dispersion interactions between atoms and molecules, both in the nonretarded van der Waals and the retarded Casimir–Polder regime; vacuum field fluctuations of the electromagnetic field and their effect in atomic systems; dispersion interactions between uniformly accelerating atoms and relation with the Fulling–Davies–Unruh effect; dynamics of atomic systems under strong electromagnetic fields; symmetries in quantum electrodynamics; and open quantum systems.

Author : Vladimir Vasilʹevich Mitin,Dmitry I. Sementsov,Nizami Z. Vagidov
Publisher : Cambridge University Press
Page : 449 pages
File Size : 47,8 Mb
Release : 2010-05-20
Category : Science
ISBN : 9780521763660

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Quantum Mechanics for Nanostructures by Vladimir Vasilʹevich Mitin,Dmitry I. Sementsov,Nizami Z. Vagidov Pdf

Textbook introducing engineers to quantum mechanics and nanostructures, covering the fundamentals and applications to nanoscale materials and nanodevices.

Author : Anonim
Publisher : ScholarlyEditions
Page : 218 pages
File Size : 45,9 Mb
Release : 2013-06-21
Category : Science
ISBN : 9781481690089

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Mycotoxins—Advances in Research and Application: 2013 Edition by Anonim Pdf

Mycotoxins—Advances in Research and Application: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Ochratoxins. The editors have built Mycotoxins—Advances in Research and Application: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Ochratoxins in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Mycotoxins—Advances in Research and Application: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Author : Konstantin Kikoin,Mikhail Kiselev,Yshai Avishai
Publisher : Springer Science & Business Media
Page : 359 pages
File Size : 40,8 Mb
Release : 2011-12-01
Category : Technology & Engineering
ISBN : 9783211997246

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Dynamical Symmetries for Nanostructures by Konstantin Kikoin,Mikhail Kiselev,Yshai Avishai Pdf

Group theoretical concepts elucidate fundamental physical phenomena, including excitation spectra of quantum systems and complex geometrical structures such as molecules and crystals. These concepts are extensively covered in numerous textbooks. The aim of the present monograph is to illuminate more subtle aspects featuring group theory for quantum mechanics, that is, the concept of dynamical symmetry. Dynamical symmetry groups complement the conventional groups: their elements induce transitions between states belonging to different representations of the symmetry group of the Hamiltonian. Dynamical symmetry appears as a hidden symmetry in the hydrogen atom and quantum rotator problem, but its main role is manifested in nano and meso systems. Such systems include atomic clusters, large molecules, quantum dots attached to metallic electrodes, etc. They are expected to be the building blocks of future quantum electronic devices and information transmitting algorithms. Elucidation of the electronic properties of such systems is greatly facilitated by applying concepts of dynamical group theory.

Author : Tomas Torres,Giovanni Bottari
Publisher : John Wiley & Sons
Page : 636 pages
File Size : 45,6 Mb
Release : 2013-08-05
Category : Science
ISBN : 9781118354360

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Organic Nanomaterials by Tomas Torres,Giovanni Bottari Pdf

Discover a new generation of organic nanomaterials and their applications Recent developments in nanoscience and nanotechnology have given rise to a new generation of functional organic nanomaterials with controlled morphology and well-defined properties, which enable a broad range of useful applications. This book explores some of the most important of these organic nanomaterials, describing how they are synthesized and characterized. Moreover, the book explains how researchers have incorporated organic nanomaterials into devices for real-world applications. Featuring contributions from an international team of leading nanoscientists, Organic Nanomaterials is divided into five parts: Part One introduces the fundamentals of nanomaterials and self-assembled nanostructures Part Two examines carbon nanostructures from fullerenes to carbon nanotubes to graphene reporting on properties, theoretical studies, and applications Part Three investigates key aspects of some inorganic materials, self-assembled monolayers, organic field effect transistors, and molecular self-assembly at solid surfaces Part Four explores topics that involve both biological aspects and nanomaterials such as biofunctionalized surfaces Part Five offers detailed examples of how organic nanomaterials enhance sensors and molecular photovoltaics Most of the chapters end with a summary highlighting the key points. References at the end of each chapter guide readers to the growing body of original research reports and reviews in the field. Reflecting the interdisciplinary nature of organic nanomaterials, this book is recommended for researchers in chemistry, physics, materials science, polymer science, and chemical and materials engineering. All readers will learn the principles of synthesizing and characterizing new organic nanomaterials in order to support a broad range of exciting new applications.

Author : Olena Fesenko,Leonid Yatsenko
Publisher : Springer
Page : 610 pages
File Size : 46,9 Mb
Release : 2019-08-02
Category : Science
ISBN : 9783030177591

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Nanocomposites, Nanostructures, and Their Applications by Olena Fesenko,Leonid Yatsenko Pdf

This book highlights some of the latest advances in nanotechnology and nanomaterials from leading researchers in Ukraine, Europe, and beyond. It features contributions from participants in the 6th International Science and Practice Conference Nanotechnology and Nanomaterials (NANO2018) in Kiev, Ukraine on August 27-30, 2018 organized by the Institute of Physics of the National Academy of Sciences of Ukraine, University of Tartu (Estonia), University of Turin (Italy), and Pierre and Marie Curie University (France). Internationally recognized experts from a wide range of universities and research institutions share their knowledge and key results on material properties, behavior, and synthesis. This book's companion volume also addresses topics such as nanooptics, energy storage, and biomedical applications.

Author : Prasad L. Polavarapu
Publisher : CRC Press
Page : 298 pages
File Size : 51,9 Mb
Release : 2016-10-03
Category : Science
ISBN : 9781315357195

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Chiroptical Spectroscopy by Prasad L. Polavarapu Pdf

This book details chiroptical spectroscopic methods: electronic circular dichroism (ECD), optical rotatory dispersion (ORD), vibrational circular dichroism (VCD), and vibrational Raman optical activity (VROA). For each technique, the text presents experimental methods for measurements and theoretical methods for analyzing the experimental data. It also includes a set of experiments that can be adopted for undergraduate teaching laboratories. Each chapter is written in an easy-to-follow format for novice readers, with necessary theoretical formalism in appendices for advanced readers.

Author : David B. Amabilino
Publisher : John Wiley & Sons
Page : 380 pages
File Size : 49,8 Mb
Release : 2009-02-11
Category : Technology & Engineering
ISBN : 9783527625352

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Chirality at the Nanoscale by David B. Amabilino Pdf

The only standard reference in this exciting new field combines the physical, chemical and material science perspectives in a synergic way. This monograph traces the development of the preparative methods employed to create nanostructures, in addition to the experimental techniques used to characterize them, as well as some of the surprising physical effects. The chapters cover every category of material, from organic to coordination compounds, metals and composites, in zero, one, two and three dimensions. The book also reviews structural, chemical, optical, and other physical properties, finishing with a look at the future for chiral nanosystems.

Author : American Chemical Society
Publisher : Unknown
Page : 1042 pages
File Size : 43,9 Mb
Release : 2004
Category : Chemistry
ISBN : NYPL:33433068514649

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Journal by American Chemical Society Pdf

Author : Laurence D. Barron
Publisher : Cambridge University Press
Page : 467 pages
File Size : 52,8 Mb
Release : 2009-10-15
Category : Science
ISBN : 9781139453417

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Molecular Light Scattering and Optical Activity by Laurence D. Barron Pdf

Ranging from the physics of elementary particles to the structure of viruses, the subject matter of the book reflects the importance of optical activity and chirality in much of modern science and will be of interest to a wide range of physical and life scientists.