David L. Andrews

Bio: David L. Andrews is an academic researcher from University of East Anglia. The author has contributed to research in topics: Photon & Angular momentum. The author has an hindex of 48, co-authored 522 publications receiving 9645 citations. Previous affiliations of David L. Andrews include Norwich University & University of the East.

Roadmap on structured light

Abstract: Structured light refers to the generation and application of custom light fields. As the tools and technology to create and detect structured light have evolved, steadily the applications have begun to emerge. This roadmap touches on the key fields within structured light from the perspective of experts in those areas, providing insight into the current state and the challenges their respective fields face. Collectively the roadmap outlines the venerable nature of structured light research and the exciting prospects for the future that are yet to be realized.

Structured Light and Its Applications: An Introduction to Phase-Structured Beams and Nanoscale Optical Forces

Abstract: New possibilities have recently emerged for producing optical beams with complex and intricate structures, and for the non-contact optical manipulation of matter. This book fully describes the electromagnetic theory, optical properties, methods and applications associated with this new technology. Detailed discussions are given of unique beam characteristics, such as optical vortices and other wavefront structures, the associated phase properties and photonic aspects, along with applications ranging from cold atom manipulation to optically driven micromachines.The features include: comprehensive and authoritative treatments of the latest research in this area of nanophotonics, written by the leading researchers; accounts of numerous microfluidics, nanofabrication, quantum informatics and optical manipulation applications; and, coverage that fully spans the subject area, from fundamental theory and simulations to experimental methods and results. Graduate students and established researchers in academia, national laboratories and industry will find this book an invaluable guide to the latest technologies in this rapidly developing field. It is a comprehensive and definitive source of the latest research in nanotechnology written by the leading people in the field. From theory to applications - all is presented in detail. Editor is Chair of the SPIE Nanotechnology Technical Group and is leading the way in generation and manipulation of complex beams.

Resonance Energy Transfer

Abstract: 1. Resonance energy transfer in proteins introduction some basic considerations a short history of FRET determinations the components of the Foorster equation quantum yield determining spectral overlap steady state or time--resolved measurements? resonance energy transfer using intrinsic amino acids homotransfer between intrinsic probes heterotransfer the range of distances determined by resonance energy transfer precise location of resonance energy transfer probes properties of probes labeling specific residues in proteins resonance energy transfer experiments using lanthanide ions measurements in radially symmetrical systems comparison with crystallographic distances using resonance energy transfer to constrain molecular models resonance energy transfer with single fluorophores: new wave experiments intramolecular energy transfer in proteins bound to membranes green fluorescent protein resonance energy transfer and biosensors: a new and promising technique shortcomings the future of FRET summary dedication acknowledgements references. 2. Unified theory and radiative and raditionless energy transfer introduction background the basis of the unified theory spectral features refraction and dissipation dynamics of energy transfer between a pair of molecules in a dielectric medium conclusion appendix A: Heitler--MA method for analysis of the transition operator Appendix B: modified approach to the transition operator references. 3. Dynamics of radiative transport introduction overview of atomic and molecular radiative transport the Holstein--Biberman equation multiple scattering representation stochastic approach combined radiative and nonradiative transport conclusion appendix A: probablitity of emission of a photon between t + dt for an nth generation molecule appendix B: depolarization factor for radiative transferaccording to classical electrodynamics references. 4. Orientational aspects in pair energy transfer introduction Kappa--squared and probability, Kappa--squared and anisotropy notes on the effects of order and motion acknowledgements references. 5. Polarization in molecular complexes with incoherent energy transfer introduction interaction of light with single molecules or chromophores bichromophore molecular complexes trichromophore complexes multichromophore complexes with C3 symmetry conclusion appendix A appendix B appendix C appendix D references. 6. Theory of coupling in multichromophoric systems introduction reactant and product states: LMO model the origin of coupling matrix elements paradigmatic results coulombic coupling superexchange interpretation of steady state spectra calculation of couplings acknowledgements references. 7. Exciton annihilation in molecular aggregates introduction theory applications discussion acknowledgements references. 8. Energy transfer and localization: applications to photosynthetic systems introduction optical properties of dimers and aggregates energy and localization in antenna complexes and reaction centers acknowledgements references. 9.Excitation energy transfer in photosynthesis introduction the structure of light--harvesting complexes the mechanism of energy transfer and trapping in photosynthesis dynamics of excitation energy transfer conclusions acknowledgements references. 10. The Fenna--Matthews--Olson protein: a strongly coupled photosynthetic antenna introduction steady state spectroscopy FMO exciton simulations FMO primary processes epilog and future prospects acknowledgements references. 11. Use of a Monte carlo method in the problem of energy migration in molecular complexes introduction an illustration of Monte Carlo calculations in the problem of fluorescence decay energy transfer in CME: major algorithm applications of monte Carlo simulations conclusion acknowledgements references. Index

On three‐dimensional rotational averages

Abstract: In theories which describe the response of freely rotating molecules to externally imposed stimuli it is frequently necessary to average rotationally a product of direction cosines relating space‐fixed and molecular coordinate frames. In this paper a systematic method for deriving the required tensor averages is presented, and results up to the seventh rank are explicitly shown. Where appropriate both reducible and irreducible expressions are given and their equivalence is demonstrated. Finally, some useful identities relating rotational averages of different ranks are noted.

I and i

Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

Principles of nano-optics

Abstract: 1. Introduction 2. Theoretical foundations 3. Propagation and focusing of optical fields 4. Spatial resolution and position accuracy 5. Nanoscale optical microscopy 6. Near-field optical probes 7. Probe-sample distance control 8. Light emission and optical interaction in nanoscale environments 9. Quantum emitters 10. Dipole emission near planar interfaces 11. Photonic crystals and resonators 12. Surface plasmons 13. Forces in confined fields 14. Fluctuation-induced phenomena 15. Theoretical methods in nano-optics Appendices Index.

Bose-Einstein condensation in a gas of sodium atoms

Abstract: Bose-Einstein condensation (BEC) has been observed in a dilute gas of sodium atoms. A Bose-Einstein condensate consists of a macroscopic population of the ground state of the system, and is a coherent state of matter. In an ideal gas, this phase transition is purely quantum-statistical. The study of BEC in weakly interacting systems which can be controlled and observed with precision holds the promise of revealing new macroscopic quantum phenomena that can be understood from first principles.

Principles Of Fluorescence Spectroscopy

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Quantum Theory of Fields

Abstract: To say that this is the best book on the quantum theory of fields is no praise, since to my knowledge it is the only book on this subject But it is a very good and most useful book The original was written in German and appeared in 1942 This is a translation with some minor changes A few remarks have been added, concerning meson theory and nuclear forces, also footnotes referring to modern work in this field, and finally an appendix on the symmetrization of the energy momentum tensor according to Belinfante Quantum Theory of Fields Prof Gregor Wentzel Translated from the German by Charlotte Houtermans and J M Jauch Pp ix + 224, (New York and London: Interscience Publishers, Inc, 1949) 36s