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Books > Science & Mathematics > Physics > Optics (light)
Optically Stimulated Luminescence (OSL) has become the technique of
choice for many areas of radiation dosimetry. The technique is
finding widespread application in a variety of radiation dosimetry
fields, including personal monitoring, environmental monitoring,
retrospective dosimetry (including geological dating and accident
dosimetry), space dosimetry, and many more. In this book we have
attempted to synthesize the major advances in the field, covering
both fundamental understanding and the many applications. The
latter serve to demonstrate the success and popularity of OSL as a
dosimetry method.
The book is designed for researchers and radiation dosimetry
practitioners alike. It delves into the detailed theory of the
process from the point of view of stimulated relaxation phenomena,
describing the energy storage and release processes
phenomenologically and developing detailed mathematical
descriptions to enable a quantitative understanding of the observed
phenomena. The various stimulation modes (continuous wave, pulsed,
or linear modulation) are introduced and compared. The properties
of the most important synthetic OSL materials beginning with the
dominant carbon-doped Al2O3, and moving through discussions of
other, less-well studied but nevertheless important, or potentially
important, materials. The OSL properties of the two most important
natural OSL dosimetry material types, namely quartz and feldspars
are discussed in depth. The applications chapters deal with the use
of OSL in personal, environmental, medical and UV dosimetry,
geological dating and retrospective dosimetry (accident dosimetry
and dating). Finally the developments in instrumentation that have
occurred over the past decade or more are described.
The book will find use in those laboratories within academia,
national institutes and the private sector where research and
applications in radiation dosimetry using luminescence are being
conducted. Potential readers include personnel involved in
radiation protection practice and research, hospitals, nuclear
power stations, radiation clean-up and remediation, food
irradiation and materials processing, security monitoring,
geological and archaeological dating, luminescence studies of
minerals, etc.
Electron storage rings play a crucial role in many areas of modern
scientific research. Introduction to Beam Dynamics in High-Energy
Electron Storage Rings describes the physics of particle behaviour
in these machines. Starting with an outline of the history, uses
and structure of electron storage rings, the book develops the
foundations of beam dynamics, covering particle motion in the
components used to guide and focus the beams, the effects of
synchrotron radiation, and the impact of interactions between the
particles in the beams.
This book provides a basic understanding of spectroscopic
ellipsometry, with a focus on characterization methods of a broad
range of solar cell materials/devices, from traditional solar cell
materials (Si, CuInGaSe2, and CdTe) to more advanced emerging
materials (Cu2ZnSnSe4, organics, and hybrid perovskites),
fulfilling a critical need in the photovoltaic community. The book
describes optical constants of a variety of semiconductor light
absorbers, transparent conductive oxides and metals that are vital
for the interpretation of solar cell characteristics and device
simulations. It is divided into four parts: fundamental principles
of ellipsometry; characterization of solar cell
materials/structures; ellipsometry applications including optical
simulations of solar cell devices and online monitoring of film
processing; and the optical constants of solar cell component
layers.
Written by the world's leading expert, this is an accessible introduction to optical dating for earth scientists who rely on the results given without needing to understand the technicalities of the technique. The basic notions and procedures are outlined through illustrative case histories. In addition the book provides active practitioners with a full understanding of the theory, through a series of technical notes, and brings together the various strands of ongoing research.
This thesis reports on sparsity-based multipath exploitation
methods for through-the-wall radar imaging. Multipath creates
ambiguities in the measurements provoking unwanted ghost targets in
the image. This book describes sparse reconstruction methods that
are not only suppressing the ghost targets, but using multipath to
one's advantage. With adopting the compressive sensing principle,
fewer measurements are required for image reconstruction as
compared to conventional techniques. The book describes the
development of a comprehensive signal model and some associated
reconstruction methods that can deal with many relevant scenarios,
such as clutter from building structures, secondary reflections
from interior walls, as well as stationary and moving targets, in
urban radar imaging. The described methods are evaluated here using
simulated as well as measured data from semi-controlled laboratory
experiments.
This clearly written thesis discusses the development of a highly
innovative single-photon source that uses active optical switching,
known as multiplexing, to increase the probability of delivering
photons into a single mode. Improving single-photon sources is
critical in advancing the state of the art in photonic quantum
technologies for information processing and communications.
This thesis focuses on nonlinear spectroscopy from a quantum optics
perspective. First, it provides a detailed introduction to
nonlinear optical signals; starting from Glauber's photon counting
formalism, it establishes the diagrammatic formulation, which forms
the backbone of nonlinear molecular spectroscopy. The main body of
the thesis investigates the impact of quantum correlations in
entangled photon states on two-photon transitions, with a
particular focus on the time-energy uncertainty, which restricts
the possible simultaneous time and frequency resolution in
measurements. It found that this can be violated with entangled
light for individual transitions. The thesis then presents
simulations of possible experimental setups that could exploit this
quantum advantage. The final chapter is devoted to an application
of the rapidly growing field of multidimensional spectroscopy to
trapped ion chains, where it is employed to investigate
nonequilibrium properties in quantum simulations.
This volume is about ultra high-speed cameras, which enable us to
see what we normally do not see. These are objects that are moving
very fast, or that we just ignore. Ultra high-speed cameras invite
us to a wonderland of microseconds. There Alice (the reader) meets
a ultra high-speed rabbit (this volume) and travels together
through this wonderland from the year 1887 to 2017. They go to the
horse riding ground and see how a horse gallops. The rabbit takes
her to a showroom where various cameras and illumination devices
are presented. Then, he sends Alice into semiconductor labyrinths,
wind tunnels, mechanical processing factories, and dangerous
explosive fields. Sometimes Alice is large, and at other times she
is very small. She sits even inside a car engine. She falls down
together with a droplet. She enters a microbubble, is thrown out
with a jet stream, and finds herself in a human body. Waking up
from her dream, she sees children playing a game: "I see what you
do not see, and this is....". Alice thinks: "The ultra high-speed
rabbit showed me many things which I had never seen. Now I will go
again to this wonderland, and try to find something new.
David Lindberg presents the first critical edition of the text of
Roger Bacon's classic work Perspectiva, prepared from Latin
manuscripts, accompanied by a facing-page English translation,
critical notes, and a full study of the text. Also included is an
analysis of Bacon's sources, influence, and role in the emergence
of the discipline of perspectiva. About Roger Bacon: Roger Bacon
(c.1220-c.1292) is one of the most renowned thinkers of the Middle
Ages, a philosopher-scientist praised and mythologized for his
attack on authority and his promotion of what he called
experimental science. He was a leading figure in the intellectual
life of the thirteenth century, a campaigner for educational
reform, and a major disseminator of Greek and Arabic natural
philosophy and mathematical science. About Perspectiva: The science
that Roger Bacon most fully mastered was perspectiva, the study of
light and vision (what would later become the science of optics).
His great treatment of the subject, the Perspectiva, written in
about 1260, was the first book by a European to display a full
mastery of Greek and Arabic treatises on the subject, and through
it Bacon was instrumental in defining this scientific discipline
for the next 350 years.
Advances in Laser Materials Processing: Technology, Research and
Application, Second Edition, provides a revised, updated and
expanded overview of the area, covering fundamental theory,
technology and methods, traditional and emerging applications and
potential future directions. The book begins with an overview of
the technology and challenges to applying the technology in
manufacturing. Parts Two thru Seven focus on essential techniques
and process, including cutting, welding, annealing, hardening and
peening, surface treatments, coating and materials deposition. The
final part of the book considers the mathematical modeling and
control of laser processes. Throughout, chapters review the
scientific theory underpinning applications, offer full appraisals
of the processes described and review potential future trends.
Devised at the beginning of the 20th century by french physicists
Charles Fabry and Alfred Perot, the Fabry-Perot optical cavity is
perhaps the most deceptively simple setup in optics, and today a
key resource in many areas of science and technology. This thesis
delves deeply into the applications of optical cavities in a
variety of contexts: from LIGO's 4-km-long interferometer arms that
are allowing us to observe the universe in a new way by measuring
gravitational waves, to the atomic clocks used to realise time with
unprecedented accuracy which will soon lead to a redefinition of
the second, and the matterwave interferometers that are enabling us
to test and measure gravity in a new scale. The work presented
accounts for the elegance and versatility of this setup, which
today underpins much of the progress in the frontier of atomic and
gravitational experimental physics.
This is a monograph/text devoted to a detailed treatment of the
optical, electro-optical and nonlinear optical properties of all
the mesophases of liquid crystals and related processes, phenomena
and application principles. Quantitative data on material and
optical parameters spanning the ultraviolet, visible, infrared as
well as the microwave regimes are presented along with detailed
theoretical treatments of basic liquid crystal physics, material
properties and nonlinear optics.Starting with a discussion on the
basic building blocks of liquid crystalline molecules, the authors
proceed to present in a pedagogical manner current theories,
experiments, and applications of these unique and important optical
properties of liquid crystals. Numerous tables of hard-to-find
liquid crystalline parameters, a self-contained chapter on general
nonlinear optics, and comprehensive literature review are also
included.
Why are candle flames yellow? Why does ultraviolet light supposedly
kill vampires? What about the monocle? Why was the monocle-a
corrective lens that only corrects vision in a single eye-so
popular among businessmen and politicians for so many years?
Stephen R. Wilk answers all this and so much more in Sandbows and
Black Lights. This book is a collection of original essays on weird
and unusual topics surrounding optics. Wilk uses the BBC's formula
of "Education by Stealth" to explain unusual facets of science and
technology through the matrix of interesting and cultural paths,
all the while weaving in math equations in an accessible way. The
first part of the book focuses on the history, the second moves to
odd scientific approaches to visual phenomena, and the third part
explains the unique use of optics in fiction, movies, and comic
books over time. Chapters cover everything from endless corridors
to the beam of light over treasure chests in movies. Whether he is
explaining a rare discovery or answering a seemingly unapproachable
question, Wilk is able to lure readers in on every page. He has a
unique ability to turn complex science into an engaging story, and
this book is full of narratives on esoteric topics anyone will find
intriguing. Sandbows and Black Lights provides an enticing and
entertaining look at physical illusions in a whole new way.
This thesis describes the experimental and theoretical basics of
free electron laser science, serving as an excellent introduction
for newcomers to this young field. Beyond that, it addresses
electron-beam lifetimes in third-generation synchrotron light
sources, in particular with a view to optimizing them in the
forthcoming ESRF upgrade. The lifetime of the electron beam in a
storage ring is a measure of how fast electrons are being lost, and
is thus an essential parameter determining the required injection
frequency, which in turn affects beam stability and power
consumption. The main limitation on the beam lifetime in these
synchrotron light sources is the Touschek effect, i.e. the single
scattering between two electrons in a bunch. In this thesis a model
able to predict the Touschek lifetime is presented. The model is
successfully tested against measurements and used to study the
influence of other parameters such as current and size of vacuum
chamber. Not least, it enables the settings of sextupole magnets to
be optimized.
This is a translation of work which first appeared in 1816 in
Germany. Although Schopenhauer himself acknowledged that the
treatise did not present any new and significant doctrines to his
philosophy, he nonetheless considered it important enough to
publish it again in revised form toward the end of his life, in
1854. As Professor Cartwright argues in his introduction, the
book's philosophical value is to be found in the means it provides
for increasing our understanding of Schopenhauer's philosophy, both
in terms of its method and meaning. Not only does this book aim to
offer insight into the younger Schopenhauer, it is also a
significant document in the history of optics and colour theory.
This book reflects the latest advances in nonlinear optics. Besides
the simple, strict mathematical deduction, it also discusses the
experimental verification and possible future applications, such as
the all-optical switches. It consistently uses the practical unit
system throughout. It employs simple physical images, such as
"light waves" and "photons" to systematically explain the main
principles of nonlinear optical effects. It uses the first-order
nonlinear wave equation in frequency domain under the condition of
"slowly varying amplitude approximation" and the classical model of
the interaction between the light and electric dipole. At the same
time, it also uses the rate equations based on the energy-level
transition of particle systems excited by photons and the energy
and momentum conservation principles to explain the nonlinear
optical phenomenon. The book is intended for researchers, engineers
and graduate students in the field of optics, optoelectronics,
fiber communication, information technology and materials etc.
This book is part of a large and growing body of work on the
observation of analogue gravity effects, such as Hawking radiation,
in laboratory systems. The book is highly didactic, skillfully
navigating between concepts ranging from quantum field theory on
curved space-times, nonlinear fibre optics and the theoretical and
experimental foundations in the physics of optical analogues to the
Event Horizon. It presents a comprehensive field-theoretical
framework for these systems, including the kinematics governing the
fields. This allows an analytical calculation of the all-important
conversion of vacuum fluctuations into Hawking radiation. Based on
this, emission spectra are computed, providing unique insights into
the emissions from a highly dispersive system. In an experimental
part, the book develops a clear and systematic way to
experimentally approach the problem and demonstrates the
construction of an experimental setup and measurements of
unprecedented sensitivity in the search for stimulation of the
Hawking effect.
The book, 'Laser Physics and Technology', addresses fundamentals of
laser physics, representative laser systems and techniques, and
some important applications of lasers. The present volume is a
collection of articles based on some of the lectures delivered at
the School on 'Laser Physics and Technology' organized at Raja
Ramanna Centre for Advanced Technology during March, 12-30, 2012.
The objective of the School was to provide an in-depth knowledge of
the important aspects of laser physics and technology to doctoral
students and young researchers and motivate them for further work
in this area. In keeping with this objective, the fourteen
chapters, written by leading Indian experts, based on the lectures
delivered by them at the School, provide along with class room type
coverage of the fundamentals of the field, a brief review of the
current status of the field. The book will be useful for doctoral
students and young scientists who are embarking on a research in
this area as well as to professionals who would be interested in
knowing the current state of the field particularly in Indian
context.
Topology is the study of properties of geometrical objects that
remain invariant as the object is bent, twisted, or otherwise
continuously deformed. It has been an indispensable tool in
particle physics and solid state physics for decades, but in recent
years it has become increasingly relevant in classical and quantum
optics as well. It makes appearances through such diverse phenomena
as Pancharatnam-Berry phases, optical vortices and solitons, and
optical simulations of solid-state topological phenomena. This book
concisely provides the necessary mathematical background needed to
understand these developments and to give a rapid survey of some of
the optical applications where topological issues arise.
This thesis presents an experimental study of quantum memory based
on cold atomic ensembles and discusses photonic entanglement. It
mainly focuses on experimental research on storing orbital angular
momentum, and introduces readers to methods for storing a single
photon carried by an image or an entanglement of spatial modes. The
thesis also discusses the storage of photonic entanglement using
the Raman scheme as a step toward implementing high-bandwidth
quantum memory. The storage of photonic entanglement is central to
achieving long-distance quantum communication based on quantum
repeaters and scalable linear optical quantum computation.
Addressing this key issue, the findings presented in the thesis are
very promising with regard to future high-speed and high-capacity
quantum communications.
This thesis presents the first comprehensive analysis of quantum
cascade laser nonlinear dynamics and includes the first observation
of a temporal chaotic behavior in quantum cascade lasers. It also
provides the first analysis of optical instabilities in the
mid-infrared range. Mid-infrared quantum cascade lasers are
unipolar semiconductor lasers, which have become widely used in
applications such as gas spectroscopy, free-space communications or
optical countermeasures. Applying external perturbations such as
optical feedback or optical injection leads to a strong
modification of the quantum cascade laser properties. Optical
feedback impacts the static properties of mid-infrared Fabry-Perot
and distributed feedback quantum cascade lasers, inducing power
increase; threshold reduction; modification of the optical
spectrum, which can become either single- or multimode; and
enhanced beam quality in broad-area transverse multimode lasers. It
also leads to a different dynamical behavior, and a quantum cascade
laser subject to optical feedback can oscillate periodically or
even become chaotic. A quantum cascade laser under external control
could therefore be a source with enhanced properties for the usual
mid-infrared applications, but could also address new applications
such as tunable photonic oscillators, extreme events generators,
chaotic Light Detection and Ranging (LIDAR), chaos-based secured
communications or unpredictable countermeasures.
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