Molecular Excitation Dynamics And Relaxation

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Molecular Excitation Dynamics and Relaxation

Author : Leonas Valkunas,Darius Abramavicius,Tomás Mancal
Publisher : John Wiley & Sons
Page : 414 pages
File Size : 51,5 Mb
Release : 2013-10-04
Category : Science
ISBN : 9783527653676

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Molecular Excitation Dynamics and Relaxation by Leonas Valkunas,Darius Abramavicius,Tomás Mancal Pdf

This work brings together quantum theory and spectroscopy to convey excitation processes to advanced students and specialists wishing to conduct research and understand the entire fi eld rather than just single aspects. Written by experienced authors and recognized authorities in the field, this text covers numerous applications and offers examples taken from different disciplines. As a result, spectroscopists, molecular physicists, physical chemists, and biophysicists will all fi nd this a must-have for their research. Also suitable as supplementary reading in graduate level courses.

Relaxation Processes in Molecular Excited States

Author : J. Fünfschilling
Publisher : Springer Science & Business Media
Page : 282 pages
File Size : 51,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400908635

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Relaxation Processes in Molecular Excited States by J. Fünfschilling Pdf

Relaxation phenomena of excited molecular states are abundant in all nature. They mediate such key processes as photochemical reactions or even the pathways of ordinary chemical reactions. However, for a long time the main research in electronic relaxation processes was concerned with anorganic solids, in part because of their great technological importance (photography, semiconductors ... ) in part also because these compounds were the "workhorses" of the solid state physicists. In the last 30 years, there was a steadily increasing interest in organic molecular systems, first in molecular crystals and later in all forms of molecular solids (glasses, polymers, membranes, ... ). The present volume combines papers on quite different types of relaxation phenomena: the type of solid studied, the electronic states involved, the physical processes responsible for the relaxations are all different. Nevertheless, after reading this book, a more clear and complete picture of the phenomenon "relaxa tion" emerges that proves that this volume is more than just a collection of individual articles. The volume starts with the paper "Spin-lattice and spin-spin relaxation in photo-excited triplet states in molecular crystals" by Jan Schmidt. Even in these seemingly simple systems of isolated guest molecules in a single crystal host, the relaxation phenomena are quite involved and a very thorough investigation is necessary to find the key relaxation processes. The end of the article provides a bridge to the following paper: it treats interactions of two molecules (dimers), where resonant interactions become important and lead to new, characteristic relaxation processes.

Charge and Energy Transfer Dynamics in Molecular Systems

Author : Volkhard May,Oliver Kühn
Publisher : John Wiley & Sons
Page : 600 pages
File Size : 47,8 Mb
Release : 2011-04-27
Category : Science
ISBN : 9783527633814

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Charge and Energy Transfer Dynamics in Molecular Systems by Volkhard May,Oliver Kühn Pdf

This 3rd edition has been expanded and updated to account for recent developments, while new illustrative examples as well as an enlarged reference list have also been added. It naturally retains the successful concept of its predecessors in presenting a unified perspective on molecular charge and energy transfer processes, thus bridging the regimes of coherent and dissipative dynamics, and establishing a connection between classic rate theories and modern treatments of ultrafast phenomena. Among the new topics are: - Time-dependent density functional theory - Heterogeneous electron transfer, e.g. between molecules and metal or semiconductor surfaces - Current flows through a single molecule. While serving as an introduction for graduate students and researchers, this is equally must-have reading for theoreticians and experimentalists, as well as an aid to interpreting experimental data and accessing the original literature.

Ultrafast Dynamics in Molecules, Nanostructures and Interfaces

Author : G G Gurzadyan,G Lanzani,C Soci,T C Sum
Publisher : World Scientific
Page : 304 pages
File Size : 53,5 Mb
Release : 2014-01-22
Category : Science
ISBN : 9789814556934

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Ultrafast Dynamics in Molecules, Nanostructures and Interfaces by G G Gurzadyan,G Lanzani,C Soci,T C Sum Pdf

Primary events in natural systems or devices occur on extremely short time scales, and yet determine in many cases the final performance or output. For this reason research in ultrafast science is of primary importance and impact in both fundamental research as well as its applications. This book reviews the advances in the field, addressing timely and open questions such as the role of quantum coherence in biology, the role of excess energy in electron injection at photovoltaic interfaces or the dynamics in quantum confined structures (e.g. multi carrier generation). The approach is that of a monograph, with a broad tutorial introduction and an overview of the recent results. This volume includes selected lectures presented at Symposium on Ultrafast Dynamics of the 7th International Conference on Materials for Advanced Technologies. Contents:Femtosecond Real-Time Vibrational Spectroscopy Using Ultrafast Laser Pulses (Takayoshi Kobayashi and Juan Du)Multidimensional Optical Spectroscopy Using a Pump-Probe Configuration: Some Implementation Details (Zhengyang Zhang and Howe-Siang Tan)High-Sensitivity Ultrafast Transient Absorption Spectroscopy of Organic Photovoltaic Devices (Alex J Barker, Kai Chen, Shyamal Prasad and Justin M Hodgkiss)Transient Absorption Data Analysis by Soft-Modelling (I A Howard, H Mangold, F Etzold, D Gehrig and F Laquai)Infrared Ultrafast Optical Probes of Photoexcitations in Π-Conjugated Polymers/Fullerene Blends for Photovoltaic Applications (C-X Sheng, U Huynh and Z V Vardeny)Ultrafast Optical Probing of Carrier Motion in Conjugated Polymers and Blends for Solar Cells (Vidmantas Gulbinas, Andrius Devizis, Domantas Peckus and Dirk Hertel)Singlet Fission in Organic Crystals (Lin Ma, Christian Kloc, Cesare Soci, Maria E Michel-Beyerle and Gagik G Gurzadyan)Mapping Carrier Diffusion in Single Silicon Core-Shell Nanowires with Ultrafast Optical Microscopy (Minah Seo, Jinkyoung Yoo, Shadi Dayeh, Julio Martinez, Brian Swartzentruber, Samuel Picraux, Antoinette Taylor and Rohit Prasankumar)Exciton Dynamics and Its Regulation Ability in Photosynthesis (V Balevicius, Jr, L Valkunas and D Abramavicius)Ultrafast Intramolecular Dynamics in Novel Star-Shaped Molecules for Photovoltaic Applications (Oleg V Kozlov, Yuriy N Luponosov, Sergei A Ponomarenko, Dmitry Yu Paraschuk, Nina Kausch-Busies and Maxim S Pshenichnikov)Nonlinear Spectroscopy of Interfaces and Its Application to Organic Electronics (Silvia G Motti, Francisco C B Maia and Paulo B Miranda)Photoinduced Charge Transfer Dynamics at HybridGaAs/P3HT Interfaces (Jun Yin, Manoj Kumar, Majid Panahandeh-Fard, Zilong Wang, Francesco Scotognella and Cesare Soci)The First Step in Vision: Visualizing Wavepacket Motion through a Conical Intersection (Dario Polli, Daniele Brida, Cristian Manzoni, Giulio Cerullo, Piero Altoe', Marco Garavelli, Oliver Weingart, Katelyn Spillane, Philipp Kukura and Richard A Mathies)Ultrafast Investigation of Energy and Charge Transfer in a Prototypical Photovoltaic Blend (Guglielmo Lanzani, Ajay Ram Srimath Kandada and Daniele Fazzi)Vacancy-Doped Plasmonic Copper Chalcogenide Nanocrystals with Tunable Optical Properties (Ilka Kriegel, Jessica Rodríguez-Fernández, Chengyang Jiang, Richard Schaller, Enrico Da Como, Dmitri V Talapin, Jochen Feldmann) Readership: Academics and professionals in the fields of physics, chemistry and material science. Keywords:Nanostructure;Interface;Semiconductor;Nanoelectronics;Optics;SurfaceReviews: “This book provides an excellent introduction to the basics of ultrafast dynamics, describes advanced experimental methods and important applications to biological, charge transfer, low-dimensional systems and others. It is highly recommended to researchers and graduate students in the field of ultrafast laser spectroscopy.” Prof. Alan Heeger Nobel Laureate in Chemistry, 2000

Spectroscopy and Excitation Dynamics of Condensed Molecular Systems

Author : Vladimir Moiseevich Agranovich,Robin M. Hochstrasser
Publisher : North-Holland
Page : 724 pages
File Size : 53,7 Mb
Release : 1983
Category : Science
ISBN : UVA:X001321264

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Spectroscopy and Excitation Dynamics of Condensed Molecular Systems by Vladimir Moiseevich Agranovich,Robin M. Hochstrasser Pdf

Light Harvesting in Photosynthesis

Author : Roberta Croce,Rienk van Grondelle,Herbert van Amerongen,Ivo van Stokkum
Publisher : CRC Press
Page : 611 pages
File Size : 45,8 Mb
Release : 2018-01-12
Category : Science
ISBN : 9781351242882

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Light Harvesting in Photosynthesis by Roberta Croce,Rienk van Grondelle,Herbert van Amerongen,Ivo van Stokkum Pdf

This landmark collective work introduces the physical, chemical, and biological principles underlying photosynthesis: light absorption, excitation energy transfer, and charge separation. It begins with an introduction to properties of various pigments, and the pigment proteins in plant, algae, and bacterial systems. It addresses the underlying physics of light harvesting and key spectroscopic methods, including data analysis. It discusses assembly of the natural system, its energy transfer properties, and regulatory mechanisms. It also addresses light-harvesting in artificial systems and the impact of photosynthesis on our environment. The chapter authors are amongst the field’s world recognized experts. Chapters are divided into five main parts, the first focused on pigments, their properties and biosynthesis, and the second section looking at photosynthetic proteins, including light harvesting in higher plants, algae, cyanobacteria, and green bacteria. The third part turns to energy transfer and electron transport, discussing modeling approaches, quantum aspects, photoinduced electron transfer, and redox potential modulation, followed by a section on experimental spectroscopy in light harvesting research. The concluding final section includes chapters on artificial photosynthesis, with topics such as use of cyanobacteria and algae for sustainable energy production. Robert Croce is Head of the Biophysics Group and full professor in biophysics of photosynthesis/energy at Vrije Universiteit, Amsterdam. Rienk van Grondelle is full professor at Vrije Universiteit, Amsterdam. Herbert van Amerongen is full professor of biophysics in the Department of Agrotechnology and Food Sciences at Wageningen University, where he is also director of the MicroSpectroscopy Research Facility. Ivo van Stokkum is associate professor in the Department of Physics and Astronomy, Faculty of Sciences, at Vrije Universiteit, Amsterdam.

Quantum Dynamics of Complex Molecular Systems

Author : David A. Micha,Irene Burghardt
Publisher : Springer Science & Business Media
Page : 424 pages
File Size : 49,9 Mb
Release : 2006-11-22
Category : Science
ISBN : 9783540344605

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Quantum Dynamics of Complex Molecular Systems by David A. Micha,Irene Burghardt Pdf

Quantum phenomena are ubiquitous in complex molecular systems - as revealed by many experimental observations based upon ultrafast spectroscopic techniques - and yet remain a challenge for theoretical analysis. The present volume, based on a May 2005 workshop, examines and reviews the state-of-the-art in the development of new theoretical and computational methods to interpret the observed phenomena. Emphasis is on complex molecular processes involving surfaces, clusters, solute-solvent systems, materials, and biological systems. The research summarized in this book shows that much can be done to explain phenomena in systems excited by light or through atomic interactions. It demonstrates how to tackle the multidimensional dynamics arising from the atomic structure of a complex system, and addresses phenomena in condensed phases as well as phenomena at surfaces. The chapters on new methodological developments cover both phenomena in isolated systems, and phenomena which involve the statistical effects of an environment, such as fluctuations and dissipation. The methodology part explores new rigorous ways to formulate mixed quantum-classical dynamics in many dimensions, along with new ways to solve a many-atom Schroedinger equation, or the Liouville-von Neumann equation for the density operator, using trajectories and ideas related to hydrodynamics. Part I treats applications to complex molecular systems, and Part II covers new theoretical and computational methods

Topological Insulators

Author : Frank Ortmann,Stephan Roche,Sergio O. Valenzuela
Publisher : John Wiley & Sons
Page : 432 pages
File Size : 44,5 Mb
Release : 2015-04-07
Category : Technology & Engineering
ISBN : 9783527681600

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Topological Insulators by Frank Ortmann,Stephan Roche,Sergio O. Valenzuela Pdf

There are only few discoveries and new technologies in physical sciences that have the potential to dramatically alter and revolutionize our electronic world. Topological insulators are one of them. The present book for the first time provides a full overview and in-depth knowledge about this hot topic in materials science and condensed matter physics. Techniques such as angle-resolved photoemission spectrometry (ARPES), advanced solid-state Nuclear Magnetic Resonance (NMR) or scanning-tunnel microscopy (STM) together with key principles of topological insulators such as spin-locked electronic states, the Dirac point, quantum Hall effects and Majorana fermions are illuminated in individual chapters and are described in a clear and logical form. Written by an international team of experts, many of them directly involved in the very first discovery of topological insulators, the book provides the readers with the knowledge they need to understand the electronic behavior of these unique materials. Being more than a reference work, this book is essential for newcomers and advanced researchers working in the field of topological insulators.

Non-Photochemical Quenching and Energy Dissipation in Plants, Algae and Cyanobacteria

Author : Barbara Demmig-Adams,Gyozo Garab,William Adams III,Govindjee
Publisher : Springer
Page : 672 pages
File Size : 46,5 Mb
Release : 2014-11-22
Category : Science
ISBN : 9789401790321

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Non-Photochemical Quenching and Energy Dissipation in Plants, Algae and Cyanobacteria by Barbara Demmig-Adams,Gyozo Garab,William Adams III,Govindjee Pdf

Harnessing the sun’s energy via photosynthesis is at the core of sustainable production of food, fuel, and materials by plants, algae, and cyanobacteria. Photosynthesis depends on photoprotection against intense sunlight, starting with the safe removal of excess excitation energy from the light-harvesting system, which can be quickly and non-destructively assessed via non-photochemical quenching of chlorophyll fluorescence (NPQ). By placing NPQ into the context of whole-organism function, this book aims to contribute towards identification of plant and algal lines with superior stress resistance and productivity. By addressing agreements and open questions concerning photoprotection’s molecular mechanisms, this book contributes towards development of artificial photosynthetic systems. A comprehensive picture –from single molecules to organisms in ecosystems, and from leading expert’s views to practical information for non-specialists on NPQ measurement and terminology – is presented.

Radiationless Transitions

Author : Sheng Lin
Publisher : Elsevier
Page : 440 pages
File Size : 54,7 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780323150279

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Radiationless Transitions by Sheng Lin Pdf

Radiationless Transitions is a critical discussion of research studies on the theory and experiments in radiationless transitions. This book is composed of nine chapters, and begins with discussions on the theory and experiment of photophysical processes of single vibronic levels and/or single rovibronic levels. The subsequent chapters deal with the spectroscopic investigations of intramolecular vibrational relaxation; the dynamics of molecular excitation by light; and the photophysical processes of small molecules in condensed phase. The discussions then shift to the high pressure effects on molecular luminescence and the internal conversion involving localized excitations, presenting one qualitative and one quantitative example, as well as the intersystem crossing with localized excitations. A chapter explores the energy transfer processes that occur after a molecule in solution is excited by light, with an emphasis on solid solutions in which the large amplitude molecular motion is largely quenched. This chapter also looks into the liquid solutions in which the molecules can translate and rotate under the influence of fluctuating forces from the liquid. The concluding chapter focuses on ultrafast processes. Researchers in the fields of physics, chemistry, and biology will benefit from this book.

Dielectric Relaxation and Dynamics of Polar Molecules

Author : Vladimir I. Ga?duk
Publisher : World Scientific
Page : 664 pages
File Size : 44,8 Mb
Release : 1999
Category : Science
ISBN : 9810221231

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Dielectric Relaxation and Dynamics of Polar Molecules by Vladimir I. Ga?duk Pdf

The topics covered in this book provide a qualitative and sometimes quantitative classic description of the wide-band 0-THz dielectric spectra of polar liquids, molecular libration-rotation (which is the reason for dielectric loss and absorption of electromagnetic waves), simple molecular models differing by the intermolecular-potential profiles, and present a comparison between the theoretical and experimental dependencies and derivation of the main results. A new feature is the application of a number of analytical models to different substances, including strongly absorbing nonassociating liquids, liquid water, water bound by macromolecules, and gas-like liquids. The presentation of the theory in this book is also new. It is based on the dynamic method in which the Brownian reorientations are considered implicitly, without direct solution of stochastic equations. This approach simplifies the theory. Senior students and experimentalists will find many of the results valuable.

Chemical Dynamics in Condensed Phases

Author : Abraham Nitzan
Publisher : Oxford University Press
Page : 742 pages
File Size : 52,5 Mb
Release : 2006-04-06
Category : Science
ISBN : 9780198529798

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Chemical Dynamics in Condensed Phases by Abraham Nitzan Pdf

Graduate level textbook presenting some of the most fundamental processes that underlie physical, chemical and biological phenomena in complex condensed phase systems. Includes in-depth descriptions of relevant methodologies, and provides ample introductory material for readers of different backgrounds.

Photothermal Spectroscopy Methods

Author : Stephen E. Bialkowski,Nelson G.C. Astrath,Mikhail A. Proskurnin
Publisher : John Wiley & Sons
Page : 512 pages
File Size : 41,9 Mb
Release : 2019-03-21
Category : Science
ISBN : 9781119279082

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Photothermal Spectroscopy Methods by Stephen E. Bialkowski,Nelson G.C. Astrath,Mikhail A. Proskurnin Pdf

Covers the advantages of using photothermal spectroscopy over conventional absorption spectroscopy, including facilitating extremely sensitive measurements and non-destructive analysis This unique guide to the application and theory of photothermal spectroscopy has been newly revised and updated to include new methods and applications and expands on applications to chemical analysis and material science. The book covers the subject from the ground up, lists all practical considerations needed to obtain accurate results, and provides a working knowledge of the various methods in use. Photothermal Spectroscopy Methods, Second Edition includes the latest methods of solid state and materials analysis, and describes new chemical analysis procedures and apparatuses in the analytical chemistry sections. It offers a detailed look at the optics, physical principles of heat transfer, and signal analysis. Information in the temperature change and optical elements in homogeneous samples and photothermal spectroscopy in homogeneous samples has been updated with a better description of diffraction effects and calculations. Chapters on analytical measurement and data processing and analytical applications are also updated and include new information on modern applications and photothermal microscopy. Finally, the Photothermal Spectroscopy of Heterogeneous Sample chapter has been expanded to incorporate new methods for materials analysis. New edition updates and expands on applications to chemical analysis and materials science, including new methods of solid state and materials analysis Includes new chemical analysis procedures and apparatuses Provides an unmatched resource that develops a consistent mathematical basis for signal description, consolidates previous theories, and provides invaluable insight into laser technology Photothermal Spectroscopy Methods, Second Edition will appeal to researchers from both academia and industry (graduate students, postdocs, research scientists, and professors) in the general field of analytical chemistry, optics, and materials science, and researchers and engineers at scientific instrument developers in fields related to photonics and spectroscopy.

Intense Resonant Interactions in Quantum Electronics

Author : V.M. Akulin,N.V. Karlov
Publisher : Springer Science & Business Media
Page : 315 pages
File Size : 47,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642612411

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Intense Resonant Interactions in Quantum Electronics by V.M. Akulin,N.V. Karlov Pdf

This book is a course of lectures given for senior students at the Moscow Institute of Physics and Technology. For those who have graduated in the USSR this information should beisufficient to give an idea of the level and the manner in which the subject matter is presented. On the other hand, readers outside of this country may never have heard about this well-known Sgviet institution, and so we would like to say few words about it now. The Moscow Institute of Physics and Technology (MFTI or Fiztekh) was founded in 1947 as the result of a special directive of Stalin in order to supply the space and nuclear program with highly educated experts. The best scientists in the country were involved in the foundation process. They invented an effective and flexible educational system that includes basic education accord ing to an university program followed by specialization at lead ing scientific centers. Being organized initially as a department of Moscow State University, MFTI recently separated into an inde pendent institution. In the sixties it lost its mainly top secret and military character and became the most prestigious place in the country for an education in physics. The political changes of the last few years have opened it to contacts with other countries. The course of lectures comprising this book is dedicated to the subject of the intense resonant interaction of laser radiation. with matter and contains a significant part of the Ph. D.

Imaging from Cells to Animals In Vivo

Author : Margarida Barroso,Xavier Intes
Publisher : CRC Press
Page : 371 pages
File Size : 53,8 Mb
Release : 2020-12-03
Category : Science
ISBN : 9781351704502

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Imaging from Cells to Animals In Vivo by Margarida Barroso,Xavier Intes Pdf

Imaging from Cells to Animals In Vivo offers an overview of optical imaging techniques developed over the past two decades to investigate biological processes in live cells and tissues. It comprehensively covers the main imaging approaches used as well as the application of those techniques to biological investigations in preclinical models. Among the areas covered are cell metabolism, receptor-ligand interactions, membrane trafficking, cell signaling, cell migration, cell adhesion, cytoskeleton and other processes using various molecular optical imaging techniques in living organisms, such as mice and zebrafish. Features Brings together biology and advanced optical imaging techniques to provide an overview of progress and modern methods from microscopy to whole body imaging. Fills the need for a comprehensive view of application-driven development and use of new tools to ask new biological questions in the context of a living system. Includes basic chapters on key methods and instrumentation, from fluorescence microscopy and imaging to endoscopy, optical coherence tomography and super-resolution imaging. Discusses approaches at different length scales and biomedical applications to the study of single cell, whole organ, and whole organism behavior. Addresses the impact on discovery, such as cellular function as implicated in human disease and translational medicine, for example in cancer diagnosis.