Download or read book High Power High Intensity Few cycle Pulses in the Mid IR for Strong field Experiments written by Matthias Baudisch and published by . This book was released on 2017 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-energy, few-cycle, mid-lR radiation sources featuring high pulse repetition rates are of tremendous interest for a variety of strong-field physics and attoscience applications. Such systems could be used in combination with the high harmonic generation process as nolel, tabletop, high-fluxX-rayradiation sources providing photon energies up to the keVlevel. Additionally, strong-field ionization eperiments of atom and molecules could help unravel the underlying phpics of photochemical reactions and molecular transformations. Nevertheless, implementing such sources remains challenging due to the absence of suitable mid-lR laser gain materials. One approach to orcrcome current limitations is optical parametric chirped pulse amplification (OPCPA). While this method is already commonly used in the visible and near-lR spectral range, justfew demonstrations emitting mid-lR, highenergy, few-cple pulses meeting the stringent requirements set by strongfield physics erperiments hare been demonstrated. ln this thesis we present our effort to push the performance of current high-power, m id-lR OPCPA systems to overcome existing limitations and to match and even exceed the performance of similar visible and near-lR radiation sources. We report on the design and implementation of a high-efficiency, frequency up-con\,ersion extension of the one-of-a-kind, high-power, few-cycle, mid-lR OPCPA system located in the AUO group at the lnstitute of Photonic Sciences in Barcelona. The unique multi-color source provides opticallysynchronized, high-energy, femtosecond outputs atwavelength ranging from the deep-UV up to the mid-lR regime and a high pulse repetition rate bepnd 100 kHz. The short output pulse durations in combination with the all optical synchronization scheme makes the source a unique tool to drive highly nonlinear and strongfield pump-probe eperiments in the tunnel or multi-photon ionization regime. ln the second part, we report on the fundamental redesign and rebuild of the original high-power, mid-lR source yielding the first implementation of a GW-lercl peak-power, mid-lR OPCPA system featuring simultaneously pulse repetition rates beyond 100 kHz The upscaling of the pulse energy by a factor of 6 while maintaining the pulse repetition rate yelds a mid-lR output average power of 19 W ln order to enable such large mid-lR average power, we performed an in-depth study of common, nonlinear mid-lR crystals in respect to their thermal, via residual absorption induced parametric amplification limitations. ln the third part, we present one of the first realizations of few-cycle, mid-lR pulse self-compression via filamentary propagation in the anomalous dispersion regime in a bulk medium. The spectro-temporal behavior of the self-compressed pulses is studied as a function of the driving mid-lR pulse parameters resulting in temporal pulse shortening down to sub-3 optical crycles. We prove the suitabilityof this technique as compactand stable post-compression method featuring CEPstable,few-cycle pulse generation in the mid-lR spectral range.
Download or read book Optics Letters written by and published by . This book was released on 2007 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Generation of High Power Waveform Controlled Few Cycle Light Sources written by Marcus Seidel and published by Springer. This book was released on 2019-02-01 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents first successful experiments to carrier-envelope-phase stabilize a high-power mode-locked thin-disk oscillator and to compress the pulses emitted from this laser to durations of only a few-optical cycles. Moreover, the monograph introduces several methods to achieve power-scalability of compression and stabilization techniques. All experimental approaches are compared in detail and may serve as a guideline for developing high-power waveform controlled, few-cycle light sources which offer tremendous potential to exploit extreme nonlinear optical effects at unprecedentedly high repetition rates and to establish table-top infrared light sources with a unique combination of brilliance and bandwidth. As an example, the realization of a multi-Watt, multi-octave spanning, mid-infrared femtosecond source is described. The thesis starts with a basic introduction to the field of ultrafast laser oscillators. It subsequently presents additional details of previously published research results and establishes a connection between them. It therefore addresses both newcomers to, and experts in the field of high-power ultrafast laser development.
Download or read book Broadband Optical Sources Based on Highly Nonlinear Quasi phasematched Interactions written by Christopher Richard Phillips and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Quasi-phasematching (QPM) is a powerful and versatile technique for manipulating coherent radiation. With current QPM media, we can perform a number of functionalities, including generating, amplifying, or spectrally broadening light across a wide range of frequencies. An advantage of QPM is that it allows us to engineer very strong nonlinear interactions with available commercial lasers. However, devices involving such strong nonlinearities can exhibit a number of subtle effects, necessitating careful numerical and theoretical modeling. In this dissertation, we consider a number of different applications of QPM, all of which share this common theme. First, we consider supercontinuum (SC) generation in quasi-phasematching waveguides, an approach which has several potential advantages including relatively low energy requirements (compared to those required in bulk), automatic carrier envelope offset frequency detection, the potential to engineer the QPM grating profile to produce a tailored output spectrum, and the use of mid-IR QPM media. We first study SC generation in reverse-proton-exchanged (RPE) lithium niobate waveguides numerically, showing good agreement between simulations and existing experimental results. Our model reveals a strong competition between second- and third-order nonlinear effects, significantly greater than previously assumed for lithium niobate, which led to almost an order-of-magnitude increase in SC generation energy requirements and in some cases degraded coherence properties. We performed SC generation experiments in QPM RPE waveguides using a Tm-doped fiber laser system. These experiments yielded a multiple-octave-spanning spectrum, and facilitated self-referencing of the laser directly from the waveguide. We modeled the experiments numerically, showing good agreement between simulated and measured spectra. Next, in order to resolve the competition between second- and third-order nonlinear effects and several other limitations of RPE waveguides, we studied dispersion-engineered lithium niobate ridge waveguides for the purpose of obtaining group velocity matching between the first and second harmonic pulses. We showed numerically that when properly designed, these ridge waveguides can facilitate SC generation with pump energies of around 50 pJ, around 50 times lower than in RPE waveguides. There is also significant interest in generating tunable, high-spectral-density frequency combs in the mid-IR for spectroscopic applications. To accomplish this goal, we demonstrated tunable mid-IR generation based on difference frequency generation (DFG) in orientation patterned gallium arsenide (OP-GaAs). The OP-GaAs sample had a fan-out QPM design, facilitating smooth tuning across the mid-IR from 6.7-12.7 microns. The DFG system was based on a Tm-doped fiber laser producing 150-fs pulses at 1950-nm, and utilized the Raman soliton self frequency shift in a fluoride fiber to obtain a power-tunable 2500-nm seed for the DFG process. Average powers of up to 1.3 mW were obtained. We investigated the limitations of this approach theoretically and numerically, and showed that with realistic upgrades to the pump laser, high-gain optical parametric amplification (OPA) and high overall conversion efficiency can be obtained. This would allow for the generation of powers exceeding of as much as 100 mW, with a power spectral density sufficient for spectroscopic applications. The last topic discussed in this dissertation is optical parametric chirped pulse amplification (OPCPA). There is significant interest in generating high-intensity, few-cycle pulses in the mid-IR for high-harmonic generation. However, there are few laser systems with the required properties beyond 3000 nm, which motivates the use of existing near-IR laser sources and nonlinear optics to generate and amplify light in this spectral region. Due to dispersion, amplification of few-cycle pulses is challenging unless one of several approaches is taken in order to facilitate broadband gain. Our approach is to utilize chirped (aperiodic) QPM gratings, in which the grating k-vector is varied monotonically through the length of the device. With these devices, the grating bandwidth can exceed the phasematching bandwidth of the input pulses, thereby allowing for ultra-broadband amplification. We first study the properties of this type of OPA device, showing a number of interesting physical properties including adiabatic following solutions to the nonlinear three-wave mixing equations. We then give an overview of our OPCPA experimental results, demonstrating 7 microjoule, 75-fs pulses centered at 3400-nm, with a repetition rate of 100 kHz. With chirped QPM OPA devices, high-gain, broad-bandwidth amplification, and tailored spectral gain and phase profiles can be achieved. Furthermore, these devices enable a number of system-level improvements. For example, we achieve highly efficient pulse compression by sending the amplified mid-IR pulses through low-loss, anti-reflection-coated bulk silicon. Spectral phase not corrected by the silicon can be compensated by pre-distorting the 1560-nm seed laser with a pulse shaper. This approach is possible because the seed phase is parametrically transferred to the mid-IR pulses by the broadband, collinear pre-amplifier. Finally, we discuss in detail the design opportunities and constraints which arise when deploying chirped QPM gratings in OPCPA systems. The main system constraints are on the duration and peak power of the pump pulses. We show that recent upgrades to the pump laser allowed these constraints to be met. The compressed idler pulses were able to ionize xenon, indicating the system is now adequate for use in high-field experiments.
Download or read book Solid State Laser Engineering written by Walter Koechner and published by Springer. This book was released on 2013-11-11 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has once again been updated to keep pace with recent developments and to maintain Koechner's position as "the bible" of the field. Written from an industrial perspective, it provides a detailed discussion of, and data for, solid-state lasers, their characteristics, design and construction.
Download or read book Attosecond Physics written by Luis Plaja and published by Springer. This book was released on 2013-07-31 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attophysics is an emerging field in physics devoted to the study and characterization of matter dynamics in the sub-femtosecond time scale. This book gives coverage of a broad set of selected topics in this field, exciting by their novelty and their potential impact. The book is written review-like. It also includes fundamental chapters as introduction to the field for non-specialist physicists. The book is structured in four sections: basics, attosecond pulse technology, applications to measurements and control of physical processes and future perspectives. It is a valuable reference tool for researchers in the field as well as a concise introduction to non-specialist readers.
Download or read book Fourier Transforms and Their Physical Applications written by D. C. Champeney and published by . This book was released on 1973 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Femtosecond Optical Frequency Comb Principle Operation and Applications written by Jun Ye and published by Springer Science & Business Media. This book was released on 2006-06-15 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last few years, there has been a convergence between the fields of ultrafast science, nonlinear optics, optical frequency metrology, and precision laser spectroscopy. These fields have been developing largely independently since the birth of the laser, reaching remarkable levels of performance. On the ultrafast frontier, pulses of only a few cycles long have been produced, while in optical spectroscopy, the precision and resolution have reached one part in Although these two achievements appear to be completely disconnected, advances in nonlinear optics provided the essential link between them. The resulting convergence has enabled unprecedented advances in the control of the electric field of the pulses produced by femtosecond mode-locked lasers. The corresponding spectrum consists of a comb of sharp spectral lines with well-defined frequencies. These new techniques and capabilities are generally known as “femtosecond comb technology. ” They have had dramatic impact on the diverse fields of precision measurement and extreme nonlinear optical physics. The historical background for these developments is provided in the Foreword by two of the pioneers of laser spectroscopy, John Hall and Theodor Hänsch. Indeed the developments described in this book were foreshadowed by Hänsch’s early work in the 1970s when he used picosecond pulses to demonstrate the connection between the time and frequency domains in laser spectroscopy. This work complemented the advances in precision laser stabilization developed by Hall.
Download or read book Supercontinuum Generation in Optical Fibers written by J. M. Dudley and published by Cambridge University Press. This book was released on 2010-04-01 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: The optical fiber based supercontinuum source has recently become a significant scientific and commercial success, with applications ranging from frequency comb production to advanced medical imaging. This one-of-a-kind book explains the theory of fiber supercontinuum broadening, describes the diverse operational regimes and indicates principal areas of applications, making it a very important guide for researchers and graduate students. With contributions from major figures and groups who have pioneered research in this field, the book describes the historical development of the subject, provides a background to the associated nonlinear optical processes, treats the generation mechanisms from continuous wave to femtosecond pulse pump regimes and highlights the diverse applications. A full discussion of numerical methods and comprehensive computer code are also provided, enabling readers to confidently predict and model supercontinuum generation characteristics under realistic conditions.
Download or read book Nonlinear Optical Crystals A Complete Survey written by David N. Nikogosyan and published by Springer Science & Business Media. This book was released on 2006-03-21 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear Optical Crystals contains the most complete and up-to-date reference material on properties of nonlinear optical crystals including: Traditional and specific applications The mathematical formulas necessary for the calculation of the frequency conversion process A survey of 63 nonlinear optical crystals containing more than 1500 different references with full titles Recent applications of common and novel nonlinear materials, including quasi-phase matching Special consideration for periodically-poled and self-frequency-doubling materials Significant amount of crystallophysical, thermophysical, spectroscopic, electro-optic and magneto-optic information
Download or read book Progress in Ultrafast Intense Laser Science XIII written by Kaoru Yamanouchi and published by Springer. This book was released on 2017-12-22 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thirteenth volume in the PUILS series covers a broad range of topics from this interdisciplinary research field, focusing on atoms, molecules, and clusters interacting in intense laser field and high-order harmonics generation and their applications. The series delivers up-to-date reviews of progress in ultrafast intense laser science, the interdisciplinary research field spanning atomic and molecular physics, molecular science, and optical science, which has been stimulated by the developments in ultrafast laser technologies. Each volume compiles peer-reviewed articles authored by researchers at the forefront of each their own subfields of UILS. Typically, each chapter opens with an overview of the topics to be discussed, so that researchers unfamiliar to the subfield, as well as graduate students, can grasp the importance and attractions of the research topic at hand; these are followed by reports of cutting-edge discoveries.
Download or read book Frequency Resolved Optical Gating The Measurement of Ultrashort Laser Pulses written by Rick Trebino and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Frequency-Resolved Optical-Gating (FROG) technique has revolutionized our ability to measure and understand ultrashort laser pulses. This book contains everything you need to know to measure even the shortest, weakest, or most complex ultrashort laser pulses. Whether you're an undergrad or an advanced researcher, you'll find easy-to-understand descriptions of all the key ideas behind all the FROG techniques, all the practical details of pulse measurement, and many new directions of research. This book is not like any other scientific book. It is a lively discussion of the basic concepts. It is an advanced treatment of research-level issues.
Download or read book Concepts and Methods of 2D Infrared Spectroscopy written by Peter Hamm and published by Cambridge University Press. This book was released on 2011-02-24 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2D infrared (IR) spectroscopy is a cutting-edge technique, with applications in subjects as diverse as the energy sciences, biophysics and physical chemistry. This book introduces the essential concepts of 2D IR spectroscopy step-by-step to build an intuitive and in-depth understanding of the method. This unique book introduces the mathematical formalism in a simple manner, examines the design considerations for implementing the methods in the laboratory, and contains working computer code to simulate 2D IR spectra and exercises to illustrate involved concepts. Readers will learn how to accurately interpret 2D IR spectra, design their own spectrometer and invent their own pulse sequences. It is an excellent starting point for graduate students and researchers new to this exciting field. Computer codes and answers to the exercises can be downloaded from the authors' website, available at www.cambridge.org/9781107000056.
Download or read book Ultrashort Laser Pulse Phenomena written by Jean-Claude Diels and published by Elsevier. This book was released on 2006-09-21 with total page 675 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrashort Laser Pulse Phenomena, Second Edition serves as an introduction to the phenomena of ultra short laser pulses and describes how this technology can be used to examine problems in areas such as electromagnetism, optics, and quantum mechanics. Ultrashort Laser Pulse Phenomena combines theoretical backgrounds and experimental techniques and will serve as a manual on designing and constructing femtosecond ("faster than electronics") systems or experiments from scratch. Beyond the simple optical system, the various sources of ultrashort pulses are presented, again with emphasis on the basic concepts and how they apply to the design of particular sources (dye lasers, solid state lasers, semiconductor lasers, fiber lasers, and sources based on frequency conversion). Provides an easy to follow guide through "faster than electronics" probing and detection methods THE manual on designing and constructing femtosecond systems and experiments Discusses essential technology for applications in micro-machining, femtochemistry, and medical imaging
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Ultrashort Pulse Laser Technology written by Stefan Nolte and published by Springer. This book was released on 2015-10-19 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrashort laser pulses with durations in the femtosecond range up to a few picoseconds provide a unique method for precise materials processing or medical applications. Paired with the recent developments in ultrashort pulse lasers, this technology is finding its way into various application fields. The book gives a comprehensive overview of the principles and applications of ultrashort pulse lasers, especially applied to medicine and production technology. Recent advances in laser technology are discussed in detail. This covers the development of reliable and cheap low power laser sources as well as high average power ultrashort pulse lasers for large scale manufacturing. The fundamentals of laser-matter-interaction as well as processing strategies and the required system technology are discussed for these laser sources with respect to precise materials processing. Finally, different applications within medicine, measurement technology or materials processing are highlighted.
Download or read book Frontiers in High Energy Density Physics written by National Research Council and published by National Academies Press. This book was released on 2003-05-11 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent scientific and technical advances have made it possible to create matter in the laboratory under conditions relevant to astrophysical systems such as supernovae and black holes. These advances will also benefit inertial confinement fusion research and the nation's nuclear weapon's program. The report describes the major research facilities on which such high energy density conditions can be achieved and lists a number of key scientific questions about high energy density physics that can be addressed by this research. Several recommendations are presented that would facilitate the development of a comprehensive strategy for realizing these research opportunities.
