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Spectral Broadening Of 25 Fs Laser Pulses Via Self Phase Modulation In A Neon Filled Holow Core Fibre
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Book Synopsis Spectral Broadening of 25 Fs Laser Pulses Via Self-phase Modulation in a Neon-filled Hollow-core Fiber by : Stefan Weichert
Download or read book Spectral Broadening of 25 Fs Laser Pulses Via Self-phase Modulation in a Neon-filled Hollow-core Fiber written by Stefan Weichert and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spectral Broadening of 25 Fs Laser Pulses Via Self-phase Modulation in a Neon Filled Holow Core Fibre by : S. Weichert
Download or read book Spectral Broadening of 25 Fs Laser Pulses Via Self-phase Modulation in a Neon Filled Holow Core Fibre written by S. Weichert and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Topics on Optical Fiber Technology by : Moh Yasin
Download or read book Selected Topics on Optical Fiber Technology written by Moh Yasin and published by BoD – Books on Demand. This book was released on 2012-02-22 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive account of the recent advances and research in optical fiber technology. It covers a broad spectrum of topics in special areas of optical fiber technology. The book highlights the development of fiber lasers, optical fiber applications in medical, imaging, spectroscopy and measurement, new optical fibers and sensors. This is an essential reference for researchers working in optical fiber researches and for industrial users who need to be aware of current developments in fiber lasers, sensors and other optical fiber applications.
Book Synopsis Experiments and Simulations of the Spectral Phase of Few-cycle Fs-laser Pulses During Supercontinuum Generation in a Neon Gas Filled Hollow Core Fiber by : Peter Bartz
Download or read book Experiments and Simulations of the Spectral Phase of Few-cycle Fs-laser Pulses During Supercontinuum Generation in a Neon Gas Filled Hollow Core Fiber written by Peter Bartz and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Femtosecond Optical Frequency Comb: Principle, Operation and Applications by : Jun Ye
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 JJAP Letters written by and published by . This book was released on 2002 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Femtosecond Laser Filamentation by : See Leang Chin
Download or read book Femtosecond Laser Filamentation written by See Leang Chin and published by Springer Science & Business Media. This book was released on 2010-03-10 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book attempts to give a discussion of the physics and current and potential applications of the self-focusing of an intense femtosecond laser pulse in a tra- parent medium. Although self-focusing is an old subject of nonlinear optics, the consequence of self-focusing of intense femtosecond laser pulses is totally new and unexpected. Thus, new phenomena are observed, such as long range lam- tation, intensity clamping, white light laser pulse, self-spatial ltering, self-group phase locking, self-pulse compression, clean nonlinear uorescence, and so on. Long range propagation at high intensity, which is seemingly against the law of diffraction, is probably one of the most exciting consequences of this new sub- eld of nonlinear optics. Because the intensity inside the lament core is high, new ways of doing nonlinear optics inside the lament become possible. We call this lamentation nonlinear optics. We shall describe the generation of pulses at other wavelengths in the visible and ultraviolet (UV) starting from the near infrared pump pulse at 800 nm through four-wave-mixing and third harmonic generation, all in gases. Remotely sensing uorescence from the fragments of chemical and biological agents in all forms, gaseous, aerosol or solid, inside the laments in air is demonstrated in the labo- tory. The results will be shown in the last part of the book. Through analyzing the uorescence of gas molecules inside the lament, an unexpected physical process pertaining to the interaction of synchrotron radiation with molecules is observed.
Book Synopsis Divided Pulse Nonlinear Compression by : Gregory W. Jenkins
Download or read book Divided Pulse Nonlinear Compression written by Gregory W. Jenkins and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A key technology for generating ultrafast, high-energy laser pulses is temporal compression through self-phase modulation in noble gases. Noble gases are ideal for high energy applications due to their high damage thresholds and flexibility through the gas species and pressure. Therefore, they have scaled nonlinear compression to the order of hundred millijoules pulse energy while maintaining high beam quality and average power. Further scaling is limited however, as the enormous pulse energies available from state-of-the-art ytterbium amplifier technology have surpassed the gases' ionization thresholds. Plasma effects encountered beyond the ionization threshold, especially plasma defocusing, degrade the output pulse and prevent scaling to higher energies. In this thesis, I will develop a method to overcome the gas ionization thresholds and scale spectral broadening methods to higher energy - divided-pulse nonlinear compression. In divided-pulse nonlinear compression, a high-energy pulse is divided into multiple low-energy pulses that are spectrally broadened. The low-energy pulses have peak intensity below the gas's ionization threshold and are able to pass through the spectral broadening stage with high efficiency, even when the single, high-energy pulse cannot. After spectral broadening, the low-energy pulses are recombined back into a high-energy pulse and compressed to a short duration. In this thesis, I will demonstrate both that the method overcomes the gas ionization limitations and that the recombination and compression steps can be implemented with high efficiency, leading to high-quality, high-energy, well-compressed pulses. In the course of this demonstration, I had to develop other tools that will be beneficial for future high-energy temporal compression systems. I improved existing pulse propagation equations that model the nonlinear spectral broadening processes in a hollow-core fiber and used the improved equations to quantify the detrimental effects of gas ionization. Alignment tolerances for the pulse division and recombination steps are tight, so I developed an analytic alignment tolerances model to quantify the effects of alignment errors and identified a useful compensator to loosen the tolerances. Finally, I also identified a new use for divided-pulse nonlinear compression that I will demonstrate, temporal contrast improvement, which rejects the prepulses and amplified spontaneous emission produced by many high-power laser amplifier systems."--Pages x-xi.
Book Synopsis Carrier-envelope Phase Stabilized Few-cycle Laser Pulses from a Neon-filled Hollow-core Fiber Compressor by : Christopher Matthew Nakamura
Download or read book Carrier-envelope Phase Stabilized Few-cycle Laser Pulses from a Neon-filled Hollow-core Fiber Compressor written by Christopher Matthew Nakamura and published by . This book was released on 2006 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Generation and Parametric Amplification of Few‐Cycle Light Pulses at Relativistic Intensities by : Alexander Kessel
Download or read book Generation and Parametric Amplification of Few‐Cycle Light Pulses at Relativistic Intensities written by Alexander Kessel and published by Springer. This book was released on 2018-06-28 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on the development of a pioneering light source architecture of the so-called Petawatt Field Synthesizer (PFS) system, which is based on short-pulse pumped, optical parametric chirped pulse amplification (OPCPA), driven by a homemade, 1-ps diode-pumped Yb:YAG. At a few-cycle pulse duration of the amplified pulses, this architecture yields record levels of peak power and temporal contrast, the latter boasting a 100-times faster rise time from the noise level to peak intensity of the pulse compared to conventional laser systems. This allows investigation of the true laser–solid interaction without premature plasma expansion and without lossy pulse cleaning by e.g. plasma mirrors. The book describes several concepts for the generation of broadband, high-energy and high-contrast seed pulses, as well as the OPCPA development, few-cycle pulse compression and contrast characterization in a concise and insightful manner. The theory chapter serves as an excellent and accessible primer on OPCPA and other nonlinear interactions, while the experimental parts provide an excellent description of the challenges of developing such a novel architecture and some of the innovative solutions to overcome them.
Download or read book Optics Letters written by and published by . This book was released on 2007 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Pulse Compression by : Alexander Grün
Download or read book Nonlinear Pulse Compression written by Alexander Grün and published by . This book was released on 2015 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis I investigate two methods for generating ultrashort laser pulses in spectral regions which are ordinarily difficult to achieve by the existing techniques. These pulses are specially attractive in the study of ultrafast (few femtosecond) atomic and molecular dynamics. The first involves Optical Parametric Amplification (OPA) mediated by four-wave-mixing in gas and supports the generation of ultrashort pulses in the Near-InfraRed (NIR) to the Mid-InfraRed (MIR) spectral region. By combining pulses at a centre wavelength of 800 nm and their second harmonic in an argon-filled hollow-core fibre, we demonstrate near-infrared pulses, peaked at 1.4 μm, with 5 μJ energy and 45 fs duration at the fibre output. The four-wave-mixing process involved in the OPA is expected to lead carrier-envelope phase stable pulses which is of great importance for applications in extreme nonlinear optics. These NIR to MIR pulses can be used directly for nonlinear light-matter interactions making use of its long-wavelength characteristics. The second method allows the compression of intense femtosecond pulses in the ultraviolet (UV) region by sum-frequency mixing two bandwidth limited NIR pulses in a noncollinear phasematching geometry under particular conditions of group-velocity mismatch. Specifically, the crystal has to be chosen such that the group velocities of the NIR pump pulses, v1 and v2 , and of the sum-frequency generated pulse, vSF, meet the following condition, v1
Book Synopsis Generation, Amplification, and Measurement of Ultrashort Laser Pulses by :
Download or read book Generation, Amplification, and Measurement of Ultrashort Laser Pulses written by and published by . This book was released on 1995 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamental Limitations in the Measurement and Stabilization of the Carrier-Envelope Phase of Ultrashort Laser Pulses by : Sebastian Koke
Download or read book Fundamental Limitations in the Measurement and Stabilization of the Carrier-Envelope Phase of Ultrashort Laser Pulses written by Sebastian Koke and published by . This book was released on 2012 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stabilization of the carrier-envelope phase of ultrashort laser pulses went through a rapid development from the first publication of a feasible concept in 1999 to being a mature tool for frequency metrology and attosecond science now. Using this technique, stabilization of the timing between the carrier wave and the envelope of a laser pulse with residual jitters of only 100 attoseconds has become possible. Naturally, the questions arises whether and how this can be further improved. The current work is devoted to determining the physical mechanisms which generate jitter in carrier-envelope phase stabilization. Furthermore, it is investigated whether there is a fundamental limitation to the achievable accuracy. To this end, two methods for removal of technical noise contributions are initially discussed. Different interferometer topologies are investigated and spurious interferometer noise is reduced by more than 40% using a commonpath layout. A novel two-detector based carrier-envelope phase retrieval technique for amplified laser pulses is demonstrated enabling the circumvention of the shot-noise constraint of the conventional extraction method to the maximum extent possible. Next, a novel feed-forward stabilization concept is developed that enables carrier-envelope phase stabilizations with only 20 attosecond residual timing jitter between carrier and envelope of the laser pulse. This feed-forward method is unconditionally stable against drop-out and permits the generation of a train of pulses with identical electric field structure with no additional measures. As the feed-forward concept widely avoids the technical noise sources of the conventional feedback stabilization, the resulting noise spectra exhibit only two unavoidable residual noise mechanisms: a highfrequency white noise floor stemming from shot noise in the carrier-envelope phase detection and a drift-like contribution with 1/f noise characteristics. Finally, the drift-like residual noise mechan
Book Synopsis Frequency Conversion of High-intensity, Femtosecond Laser Pulses by : Paul Stuart Banks
Download or read book Frequency Conversion of High-intensity, Femtosecond Laser Pulses written by Paul Stuart Banks and published by . This book was released on 1997 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pulse compression of picosecond pulses from a solid state laser using self-phase modulation in graded-core index fibres by :
Download or read book Pulse compression of picosecond pulses from a solid state laser using self-phase modulation in graded-core index fibres written by and published by . This book was released on 1984 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
