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This book offers a review of the use ofextended ablation plasmas as nonlinear media for HHG of high-order harmonicgeneration (HHG). The book describes the different experimentalapproaches, shows the advantages and limitations regarding HHG efficiency anddiscusses the particular processes that take place at longer interactionlengths, including propagation and quasi-phase matching effects. Itdescribes the most recent approaches to harmonic generation in the extremeultraviolet (XUV) range with the use of extended plasma plumes, and how thesediffer from more commonly-used gas-jet sources. The main focus is on studiesusing extended plasmas, but some new findings from HHG experiments in narrowplasma plumes are also discussed. It also describes how quasi-phase-matching inmodulated plasmas, as demonstrated in recent studies, has revealed differentmeans of tuning enhanced harmonic groups in the XUV region.
After an introduction to the fundamentaltheoretical and experimental aspects of HHG, a review of the most importantresults of HHG in narrow plasmas is presented, including recent studies ofsmall-sized plasma plumes as emitters of high-order harmonics. In Chapter 2,various findings in the application of extended plasmas for harmonic generationare analyzed. One of the most important applications of extended plasmas, thequasi-phase-matching of generated harmonics, is demonstrated in Chapter 3,including various approaches to the modification of perforated plasma plumes.Chapter 4 depicts the nonlinear optical features of extended plasmas producedon the surfaces of different non-metal materials. Chapter 5 is dedicatedto the analysis of new opportunities for extended plasma induced HHG. Theadvantages of the application of long plasma plumes for HHG, such as resonanceenhancement and double-pulse method, are discussed in Chapter 6. Finally, asummary section brings together all of these findings and discuss theperspectives of extended plasma formations for efficient HHG and nonlinearoptical plasma spectroscopy.
The book will be useful for students andscholars working in this highly multidisciplinary domain involving materialscience, nonlinear optics and laser spectroscopy. It brings the new researcherto the very frontier of the physics of the interaction between laser andextended plasma; for the expert it will serve as an essential guide andindicate directions for future research.
List of contents
Preface.- Introduction: Theory and experiment of high-orderharmonic generation in narrow and extended media.- 1 HHG in short-lengthplasmas.- 2 HHG in extended plasmas.- 3 Quasi-phase-matching of harmonics inlaser-produced plasmas.- 4 Peculiarities of the HHG in the extended plasmasproduced on the surfaces of different materials.- 5 New opportunities ofextended plasma induced harmonic generation.- 6 Harmonic characterization usingdifferent HHG schemes.- Summary: achievements and perspectives.
About the author
Rashid A. Ganeev is an internationally recognized
expert in the field of High Harmonic Generation (HHG) in laser ablation plasmas.
In the present book, he specifically addresses the case of extended ablation
plasmas as nonlinear media for HHG. The book describes the different
experimental approaches, shows the advantages and limitations regarding HHG
efficiency and discusses the particular processes that take place at longer
interaction lengths, including propagation and quasi-phase matching effects.
Several schemes have been proposed such as exploitation of a resonance between
pump laser and driven matter, use of nano-molecules and metal clusters, use on
modulated extended plasmas and so on.
The structure of the book follows a logical presentation of first
providing an overview of HHG in short length ablation plasma plumes and
introducing in the following chapters the different experimental approaches
tested to generate longer plumes. The results presented are a recollection of
the author¿s own contributions but there are also plenty of references to
publications by other actors in the field. The book shows the perspectives of
further development of HHG in extended plasma plumes. It also provides an
updated recollection of the subject of plasma harmonics, which will be useful
for students and scholars working in this highly multidisciplinary domain
encountering material science, nonlinear optics and laser spectroscopy. The
present book brings the new researcher at the very frontier of the physics of
the interaction between laser and extended plasma; it will serve to the expert
as an essential compass to follow a predetermined path.
Summary
This book offers a review of the use of
extended ablation plasmas as nonlinear media for HHG of high-order harmonic
generation (HHG). The book describes the different experimental
approaches, shows the advantages and limitations regarding HHG efficiency and
discusses the particular processes that take place at longer interaction
lengths, including propagation and quasi-phase matching effects. It
describes the most recent approaches to harmonic generation in the extreme
ultraviolet (XUV) range with the use of extended plasma plumes, and how these
differ from more commonly-used gas-jet sources. The main focus is on studies
using extended plasmas, but some new findings from HHG experiments in narrow
plasma plumes are also discussed. It also describes how quasi-phase-matching in
modulated plasmas, as demonstrated in recent studies, has revealed different
means of tuning enhanced harmonic groups in the XUV region.
After an introduction to the fundamental
theoretical and experimental aspects of HHG, a review of the most important
results of HHG in narrow plasmas is presented, including recent studies of
small-sized plasma plumes as emitters of high-order harmonics. In Chapter 2,
various findings in the application of extended plasmas for harmonic generation
are analyzed. One of the most important applications of extended plasmas, the
quasi-phase-matching of generated harmonics, is demonstrated in Chapter 3,
including various approaches to the modification of perforated plasma plumes.
Chapter 4 depicts the nonlinear optical features of extended plasmas produced
on the surfaces of different non-metal materials. Chapter 5 is dedicated
to the analysis of new opportunities for extended plasma induced HHG. The
advantages of the application of long plasma plumes for HHG, such as resonance
enhancement and double-pulse method, are discussed in Chapter 6. Finally, a
summary section brings together all of these findings and discuss the
perspectives of extended plasma formations for efficient HHG and nonlinear
optical plasma spectroscopy.
The book will be useful for students and
scholars working in this highly multidisciplinary domain involving material
science, nonlinear optics and laser spectroscopy. It brings the new researcher
to the very frontier of the physics of the interaction between laser and
extended plasma; for the expert it will serve as an essential guide and
indicate directions for future research.
