Chirality Of Light And Its Interaction With Chiral Matter
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| Author | : Yiqiao Tang |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2013 |
| Genre | : |
| ISBN | : |
This thesis conducts a systematic study on the chirality of light and its interaction with chiral matter. In the theory section, we introduce a measure of local density of chirality, applying to arbitrary electromagnetic fields. This optical chirality suggests the existence of superchiral modes, which are more selective than circularly polarized light (CPL) in preferentially exciting single enantiomers in certain regions of space. Experimentally, we demonstrate an 11-fold enhancement over CPL in discriminating chiral fluorophores of single handedness in a precisely sculpted superchiral field. This result agrees to within 15% with theoretical predictions.
| Author | : Egor Babaev |
| Publisher | : World Scientific |
| Total Pages | : 277 |
| Release | : 2023-02-13 |
| Genre | : Science |
| ISBN | : 9811265070 |
A geometric figure has chirality, or handedness, if its mirror image cannot be brought to coincide with itself. The concept of chirality was instrumental in establishing the tetrahedral valences of the carbon atom, and has continued to play a key role in chemistry and molecular biology ever since.The fact that living organisms use only one of two mirror isomers of such molecules as amino acids and sugars, that is, the question of the origin of homochirality of the molecular basis of life, remains an unsolved problem of the same dignity as the origin of dark matter and dark energy.The increasing importance of chirality and topology in condensed matter physics and chemistry, and the production of new states of matter in heavy-ion collisions, have brought the concept of chirality into physics and cosmology in a tangible way while at the same time expanded the physics/chemistry interface. The book is the first to address all aspects of chirality in a single volume.
| Author | : Zhiyong Tang |
| Publisher | : John Wiley & Sons |
| Total Pages | : 300 |
| Release | : 2018-03-05 |
| Genre | : Technology & Engineering |
| ISBN | : 3527337571 |
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 | : Zhan-Hong Lin |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2023* |
| Genre | : |
| ISBN | : |
Nanophotonics research has been progressing in chiral measurements, but improvements are needed in the design of plasmonic nanostructures for enhancing chiral light-matter interactions. Here, linearly polarized light is employed for chiroptical measurements, as evidenced by the fabrication of a 3D Archimedean spiral metasurface and the use of elliptical nanoholes. Structured optical chirality patterns have also shown potential in chiral imaging, separation, and spectroscopy. Moreover, whispering gallery modes (WGM) in self-assembled semiconducting polymer microspheres are a promising avenue for microlaser applications. The impact of conducting substrates with WGM cavities has been explored, and geometry deformation-induced spectral splitting behavior has been demonstrated by using photoswitchable polymers. Additionally, a flexible ionic liquid droplet laser can function stably in the atmosphere and be used for various purposes, including as a humidity sensor. These studies carry important implications for chiral imaging, chiral separation, CD spectroscopy, electroluminescence, and WGM sensors.
| Author | : Albert Guijarro |
| Publisher | : Royal Society of Chemistry |
| Total Pages | : 164 |
| Release | : 2008 |
| Genre | : Science |
| ISBN | : 0854041567 |
Few times an unsolved issue in science has dealt with a larger number of approaches or theories intending to shed light on it and few times this has been done from so different, often orthogonal perspectives. This book covers a hot topic, one of the unsolved problems not just in chemistry, but in science
| Author | : Indra K. Reddy |
| Publisher | : CRC Press |
| Total Pages | : 406 |
| Release | : 2004-03-15 |
| Genre | : Science |
| ISBN | : 0824751094 |
Covering every essential element in the development of chiral products, this reference provides a solid overview of the formulation, biopharmaceutical characteristics, and regulatory issues impacting the production of these pharmaceuticals. It supports researchers as they evaluate the pharmacodynamic, pharmacokinetic, and toxicological characteristics of specific enantiomers and chiral drug compounds and addresses in one convenient reference all the major challenges pertaining to drug chirality that have been neglected in the literature. Chirality in Drug Design and Development collects the latest studies from an interdisciplinary team of experts on chiral drug design.
| Author | : Eugene Kamenetskii |
| Publisher | : Springer Nature |
| Total Pages | : 587 |
| Release | : 2021-03-27 |
| Genre | : Science |
| ISBN | : 3030628442 |
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 | : Prasad L. Polavarapu |
| Publisher | : CRC Press |
| Total Pages | : 298 |
| Release | : 2016-10-03 |
| Genre | : Science |
| ISBN | : 1315357194 |
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 | : Albert Guijarro |
| Publisher | : Royal Society of Chemistry |
| Total Pages | : 243 |
| Release | : 2022-06-10 |
| Genre | : Science |
| ISBN | : 1839163690 |
This book provides an interdisciplinary review of one of the great unsolved mysteries that has fascinated scientists for over 150 years: the origin of chirality in biomolecules. Current advances in fields as diverse as space exploration, prebiotic chemistry and high-energy physics may help to provide an answer. Important pieces of information will come from observations at the two frontiers of science: outer space and the subatomic world. Observation of distant planets, galaxies, and even actual sampling of celestial objects from beyond the solar system are projects currently underway. At the other end of the spectrum, there are experiments that study the elemental properties of matter, such as symmetry, and interactions with the fundamental forces. Completely revised and updated this new edition once again unifies all the theories of the origin of biomolecular homochirality together in a single source. This complete, interdisciplinary review of an intriguing subject condenses a large and disparate range of contributions from journals in almost every scientific field. The various theories have been organized, interrelated and explained in a unified way. It is fundamental, comprehensive and structured to be accessible for educational purposes.
| Author | : Laurence D. Barron |
| Publisher | : Cambridge University Press |
| Total Pages | : 467 |
| Release | : 2009-10-15 |
| Genre | : Science |
| ISBN | : 1139453416 |
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.
