Light Propagation and Random Lasing

Light Propagation and Random Lasing PDF Author: Regine Frank
Publisher: Sudwestdeutscher Verlag Fur Hochschulschriften AG
ISBN: 9783838130095
Category :
Languages : en
Pages : 120

Get Book Here

Book Description
In the last decade Anderson Localization of Light and Random Lasing has attracted a variety of interest in the community of condensed matter theory. The fact that a system so inartificial as a thin layer consisting of dust particles, which have amplifying properties, can produce coherent laser emission, is of a simple elegance, which promises new insights in fundamental physics. There is no need of an external feedback mechanism, like in the system of a conventional laser. Whereas several attempts try to enter the subject numerically by considering cavity approximations, this thesis is concerned with building a microscopically self-consistent theory of random lasing. Designing this method, we had to study light localization effects in random media including absorption and gain. Incorporating interference effects by means of Cooperon contributions we derived Anderson localized states for passive media. Mapping this on a system which consists of laser active Mie-scatterers in a passive medium, we found that by incorporation of the Cooperon, we loose the Anderson localization, but the system is weakly localized, which is sufficient for population inversion and stimulated emission.

Light Propagation and Random Lasing

Light Propagation and Random Lasing PDF Author: Regine Frank
Publisher: Sudwestdeutscher Verlag Fur Hochschulschriften AG
ISBN: 9783838130095
Category :
Languages : en
Pages : 120

Get Book Here

Book Description
In the last decade Anderson Localization of Light and Random Lasing has attracted a variety of interest in the community of condensed matter theory. The fact that a system so inartificial as a thin layer consisting of dust particles, which have amplifying properties, can produce coherent laser emission, is of a simple elegance, which promises new insights in fundamental physics. There is no need of an external feedback mechanism, like in the system of a conventional laser. Whereas several attempts try to enter the subject numerically by considering cavity approximations, this thesis is concerned with building a microscopically self-consistent theory of random lasing. Designing this method, we had to study light localization effects in random media including absorption and gain. Incorporating interference effects by means of Cooperon contributions we derived Anderson localized states for passive media. Mapping this on a system which consists of laser active Mie-scatterers in a passive medium, we found that by incorporation of the Cooperon, we loose the Anderson localization, but the system is weakly localized, which is sufficient for population inversion and stimulated emission.

Solid-State Random Lasers

Solid-State Random Lasers PDF Author: Mikhail Noginov
Publisher: Springer
ISBN: 0387251057
Category : Science
Languages : en
Pages : 254

Get Book Here

Book Description
Random lasers are the simplest sources of stimulated emission without cavity, with the feedback provided by scattering in a gain medium. First proposed in the late 1960s, random lasers have grown to a large research field. This book reviews the history and the state of the art of random lasers, provides an outline of the basic models describing their behavior, and describes the recent advances in the field. The major focus of the book is on solid-state random lasers. However, it also briefly describes random lasers based on liquid dyes with scatterers. The chapters of the book are almost independent of each other. So, the scientists or engineers interested in any particular aspect of random lasers can read directly the relevant section. Researchers entering the field of random lasers will find in the book an overview of the field of study. Scientists working in the field can use the book as a reference source.

Probabilistic Model for Laser Light Propagation Through a Random Water Surface

Probabilistic Model for Laser Light Propagation Through a Random Water Surface PDF Author: William C. Brown
Publisher:
ISBN:
Category : Laser beams
Languages : en
Pages : 226

Get Book Here

Book Description


Quantum Aspects of Light Propagation

Quantum Aspects of Light Propagation PDF Author: Antonín Lukš
Publisher: Springer Science & Business Media
ISBN: 0387855904
Category : Technology & Engineering
Languages : en
Pages : 482

Get Book Here

Book Description
Quantum Aspects of Light Propagation provides an overview of spatio-temporal descriptions of the electromagnetic field in linear and nonlinear dielectric media, appropriate to macroscopic and microscopic theories. Readers will find an introduction to canonical quantum descriptions of light propagation in a nonlinear dispersionless dielectric medium, and an approach to linear and nonlinear dispersive dielectric media. Illustrated by optical processes, these descriptions are simplified by a transition to one-dimensional propagation. Quantum theories of light propagation in optical media are generalized from dielectric media to magnetodielectrics, in addition to a presentation of classical and nonclassical properties of radiation propagating through negative-index media. Valuable analyses of quantization in waveguides, photonic crystals, and propagation in strongly scattering media are also included, along with various optical resonator properties. The theories are utilized for the quantum electrodynamical effects to be determined in periodic dielectric structures which are known to be a basis of new schemes for lasing and a control of light field state. Quantum Aspects of Light Propagation is a valuable reference for researchers and engineers involved with general optics, quantum optics and electronics, nonlinear optics, and photonics.

Light Localisation and Lasing

Light Localisation and Lasing PDF Author: Mher Ghulinyan
Publisher: Cambridge University Press
ISBN: 1107038774
Category : Science
Languages : en
Pages : 261

Get Book Here

Book Description
This book presents research on quasi-random and random photonic systems for graduate students and researchers in optics, photonics and optical engineering.

Light Propagation in Linear Optical Media

Light Propagation in Linear Optical Media PDF Author: Glen D. Gillen
Publisher: CRC Press
ISBN: 1482210959
Category : Science
Languages : en
Pages : 388

Get Book Here

Book Description
Light Propagation in Linear Optical Media describes light propagation in linear media by expanding on diffraction theories beyond what is available in classic optics books. In one volume, this book combines the treatment of light propagation through various media, interfaces, and apertures using scalar and vector diffraction theories. After covering the fundamentals of light and physical optics, the authors discuss light traveling within an anisotropic crystal and present mathematical models for light propagation across planar boundaries between different media. They describe the propagation of Gaussian beams and discuss various diffraction models for the propagation of light. They also explore methods for spatially confining (trapping) cold atoms within localized light-intensity patterns. This book can be used as a technical reference by professional scientists and engineers interested in light propagation and as a supplemental text for upper-level undergraduate or graduate courses in optics.

Laser Beam Propagation Through Random Media

Laser Beam Propagation Through Random Media PDF Author: Larry C. Andrews
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Science
Languages : en
Pages : 820

Get Book Here

Book Description
Since publication of the first edition of this text in 1998, there have been several new, important developments in the theory of beam wave propagation through a random medium, which have been incorporated into this second edition. Also new to this edition are models for the scintillation index under moderate-to-strong irradiance fluctuations; models for aperture averaging based on ABCD ray matrices; beam wander and its effects on scintillation; theory of partial coherence of the source; models of rough targets for ladar applications; phase fluctuations; analysis of other beam shapes; plus expanded analysis of free-space optical communication systems and imaging systems.

Random Light Beams

Random Light Beams PDF Author: Olga Korotkova
Publisher: CRC Press
ISBN: 1439819513
Category : Science
Languages : en
Pages : 366

Get Book Here

Book Description
Random Light Beams: Theory and Applications contemplates the potential in harnessing random light. This book discusses light matter interactions, and concentrates on the various phenomena associated with beam-like fields. It explores natural and man-made light fields and gives an overview of recently introduced families of random light beams. It outlines mathematical tools for analysis, suggests schemes for realization, and discusses possible applications. The book introduces the essential concepts needed for a deeper understanding of the subject, discusses various classes of deterministic paraxial beams and examines random scalar beams. It highlights electromagnetic random beams and matters relating to generation, propagation in free space and various media, and discusses transmission through optical systems. It includes applications that benefit from the use of random beams, as well as the interaction of beams with deterministic optical systems. • Includes detailed mathematical description of different model sources and beams • Explores a wide range of man-made and natural media for beam interaction • Contains more than 100 illustrations on beam behavior • Offers information that is based on the scientific results of the last several years • Points to general methods for dealing with random beams, on the basis of which the readers can do independent research It gives examples of light propagation through the human eye, laser resonators, and negative phase materials. It discusses in detail propagation of random beams in random media, the scattering of random beams from collections of scatterers and thin random layers as well as the possible uses for these beams in imaging, tomography, and smart illumination.

Lévy Statistics and Spin Glass Behavior in Random Lasers

Lévy Statistics and Spin Glass Behavior in Random Lasers PDF Author: Anderson S. L. Gomes
Publisher: CRC Press
ISBN: 1000778878
Category : Technology & Engineering
Languages : en
Pages : 262

Get Book Here

Book Description
This book could not have been timelier. It describes a multidisciplinary experimental work reported in the literature from 2015 to 2022, supported by a theoretical proposal from 2006, exploiting random lasers and random fiber lasers as a photonic platform to perform statistical physics, as Lévy-like statistics and extreme events, as well as complex systems, including turbulence, replica symmetry breaking (RSB) and Floquet states. Most of the theoretical grounds for these subjects date back to the 1970s. Of particular relevance for the timing for this book is the fact that two of the Nobel Prize winners of 2021 have their work connected through the experimental and theoretical work exploiting random lasers. In fact, the very first demonstration of RSB, a theory proposed by Giorgio Parisi, one of the 2021 Nobel winners, was first experimentally demonstrated in 2015 using random lasers. The scope of the book relies on the description of the already vast literature starting in 2006, but with an experimental explosion since 2015. The book describes the basis of random lasers and random fibers, theoretical background and connection between magnetism and photonics related to RSB, and theoretical backgrounds for experiments in Lévy statistics, turbulence, and Floquet states. The contributors are from three of the groups with most contributions in the field.

Physics Of Novel Materials: Proceedings Of The 10th Physics Summer School

Physics Of Novel Materials: Proceedings Of The 10th Physics Summer School PDF Author: Mukunda Prasad Das
Publisher: World Scientific
ISBN: 9814495832
Category :
Languages : en
Pages : 395

Get Book Here

Book Description
This book contains lectures delivered at the 10th Physics Summer School on “Physics of Novel Materials” at Australian National University by internationally reputed scientists. It covers a wide variety of materials: semiconductors, superconductors, polymers, zeolites, clusters and nanostructures, and transport in novel materials. It is hard to find theoretical and experimental aspects of such diverse topics on novel materials in a single volume.