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Obtaining Attosecond X Ray Pulses Using A Self Amplifiedspontaneous Emission Free Electron Laser
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Book Synopsis Obtaining Attosecond X-ray Pulses Using a Self-amplifiedspontaneous Emission Free Electron Laser by :
Download or read book Obtaining Attosecond X-ray Pulses Using a Self-amplifiedspontaneous Emission Free Electron Laser written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We describe a technique for the generation of a solitary attosecond X-ray pulse in a free electron laser (FEL), via a process of self-amplified spontaneous emission. In this method, electrons experience an energy modulation upon interacting with laser pulses having a duration of a few cycles within single-period wiggler magnets. Two consecutive modulation sections, followed by compression in a dispersive section, are used to obtain a single, sub-femtosecond spike in the electron peak current. This region of the electron beam experiences an enhanced growth rate for FEL amplification. After propagation through a long undulator, this current spike emits a (almost equal to)250 attosecond X-ray pulse whose intensity dominates the X-ray emission from the rest of the electron bunch.
Book Synopsis Proposal for an Enhanced Self-Amplified Spontaneous Emission X-ray Free Electron Laser by :
Download or read book Proposal for an Enhanced Self-Amplified Spontaneous Emission X-ray Free Electron Laser written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We describe a technique by which an energy modulation of electrons via interaction with a laser pulse in a wiggler magnet is used for a significant increase of the electron peak current prior to entering a long SASE FEL undulator. This results in a reduction of the gain length for the SASE process and a modification of the structure of the output x-ray radiation. It also temporally links the output x-ray pulse to the initial laser pulse, thus providing an opportunity for accurate synchronization between the laser pump pulse and x-ray probe pulse for pump-probe experiments.
Book Synopsis X-Ray Free-Electron Laser by : Kiyoshi Ueda
Download or read book X-Ray Free-Electron Laser written by Kiyoshi Ueda and published by MDPI. This book was released on 2018-07-04 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "X-Ray Free-Electron Laser" that was published in Applied Sciences
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309467691 Total Pages :347 pages Book Rating :4.3/5 (94 download)
Book Synopsis Opportunities in Intense Ultrafast Lasers by : National Academies of Sciences, Engineering, and Medicine
Download or read book Opportunities in Intense Ultrafast Lasers written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-03-03 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: The laser has revolutionized many areas of science and society, providing bright and versatile light sources that transform the ways we investigate science and enables trillions of dollars of commerce. Now a second laser revolution is underway with pulsed petawatt-class lasers (1 petawatt: 1 million billion watts) that deliver nearly 100 times the total world's power concentrated into a pulse that lasts less than one-trillionth of a second. Such light sources create unique, extreme laboratory conditions that can accelerate and collide intense beams of elementary particles, drive nuclear reactions, heat matter to conditions found in stars, or even create matter out of the empty vacuum. These powerful lasers came largely from U.S. engineering, and the science and technology opportunities they enable were discussed in several previous National Academies' reports. Based on these advances, the principal research funding agencies in Europe and Asia began in the last decade to invest heavily in new facilities that will employ these high-intensity lasers for fundamental and applied science. No similar programs exist in the United States. Opportunities in Intense Ultrafast Lasers assesses the opportunities and recommends a path forward for possible U.S. investments in this area of science.
Book Synopsis Self Amplified Spontaneous Emission Free Electron Laser Dynamics and Pulse Propagation Effects by : P. L. Ottaviani
Download or read book Self Amplified Spontaneous Emission Free Electron Laser Dynamics and Pulse Propagation Effects written by P. L. Ottaviani and published by . This book was released on 2003 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis UV X-ray Free Electron Lasers Through High-gain Single Pass Amplifier by :
Download or read book UV X-ray Free Electron Lasers Through High-gain Single Pass Amplifier written by and published by . This book was released on 1994 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author reviews the basic principles of high gain free electron laser amplifier in single pass configuration for generation of intense, tunable radiation for wavelength shorter than 1,000 Å. Two schemes are discussed: for wavelength region between 1,000--100 Å, the high gain harmonic generation of a coherent input radiation can be used. For x-ray wavelength as short as a few Å, the self-amplified spontaneous emission is currently the only known free electron laser scheme. The author also presents a brief introduction of various key issues in realizing these schemes, which will be discussed in detail in other papers in these proceedings.
Book Synopsis Longitudinally Coherent Single-spike Radiation from a Self-amplified Spontaneous Emission Free-electron Laser by : Gabriel Andrew Marcus
Download or read book Longitudinally Coherent Single-spike Radiation from a Self-amplified Spontaneous Emission Free-electron Laser written by Gabriel Andrew Marcus and published by . This book was released on 2012 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work studies the production and measurement of longitudinally coherent, ultrashort pulses of light from a self-amplified spontaneous emission free-electron laser (SASE FEL) by using an energy-chirped electron beam in conjunction with a tapered undulator. This scheme effectively preserves the FEL gain only where an appropriate undulator taper compensates for the detuning experienced by an amplifying radiation spike as it slips forward in the electron beam rest frame. The simultaneous time and frequency-domain measurement of ultrashort pulses of light generated in this manner were made with an advanced transient-grating frequency-resolved optical gating (TG FROG) diagnostic, which has the potential to push ultrashort light pulse measurement at FEL facilities to shorter wavelength regimes. The theoretical framework presented in this dissertation has two components. The FEL theory presented here includes an analysis of the coupled wave and Vlasov equations, which are linearized in the one-dimensional case, and are solved in the frequency domain by the Laplace transform technique. The exponential gain regime for SASE FEL light is explored in detail to clearly identify concepts that are relevant to the energy-chirp and undulator tapering experiment. Some of these concepts are illustrated with fully three-dimensional, time-dependent numerical particle simulations using the FEL code GENESIS for the supportive case of ultrashort, low-charge electron beams. In addition, nonlinear optics, the foundation upon which all FROG diagnostics are built, is briefly explored using two complementary perspectives as they apply to the TG FROG geometry. The experimental section describes in detail the first direct time-domain measurements of a single coherent radiation spike from a SASE FEL amplifier employing the energy-chirped electron beam and tapered undulator technique at the SPARC FEL test facility in Frascati, Italy. Electron beams were accelerated and compressed using the velocity bunching technique, which leaves a residual energy-chirp in the longitudinal phase space. The energy-chirp was compensated by appropriately tapering individual undulator sections. This process was optimized at a resonant wavelength of & lambda; = 530 nm. The ultrashort light pulses that were generated had a temporal full-width at half-maximum of 98 fs and a time-bandwidth product of TBP & sim; 1.2, indicating that the Fourier limit was nearly achieved. This experiment provides further insight into methods that can be used to shape the SASE FEL longitudinal profile and enhance coherence properties. In addition, the measurements were taken with an advanced, and relatively simple, TG FROG diagnostic that can potentially be used to measure ultrashort UV pulses at FEL facilities.
Book Synopsis Free Electron Lasers 2002 by : K.-J. Kim
Download or read book Free Electron Lasers 2002 written by K.-J. Kim and published by Gulf Professional Publishing. This book was released on 2003-08-21 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the Proceedings of the 24th International Free Electron Laser Conference and the 9th Free Electron Laser Users Workshop, which were held on September 9-13, 2002 at Argonne National Laboratory. Part I has been reprinted from Nucl. Instr. and Meth. A 507 (2003), Nos. 1-2.
Book Synopsis Novel Techniques in Free Electron Lasers by : James Robert Henderson
Download or read book Novel Techniques in Free Electron Lasers written by James Robert Henderson and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Free Electron Lasers can generate high power transversely coherent tunable radiation. X-ray radiation can be generated in the Self Amplified Spontaneous Emission regime, however this radiation has poor temporal coherence. The Echo-Enabled Harmonic Generation method can improve the radiation's temporal coherence in x-ray. In this thesis analysis of the Echo-Enabled Harmonic Generation technique reveals that electron pulse has a modal density profile. This density profile when matched to amplification profile of an undulatorchicane lattice generates a train of coherent radiation spikes. The interaction of multiple electron pulses is investigated in this thesis. Propagating multiple electron pulses through an undulator produce a train of radiation spikes. The temporal separation of the radiation spikes can be manipulated using magnetic chicanes. Two new techniques are then proposed to improve FEL performance when the electron pulse has a large energy spread, such as those produced in plasma accelerators. These techniques use seeded-undulators and chicanes to manipulate the electron phase space prior to injection through an undulator-chicane lattice.
Book Synopsis Reflection of Attosecond X-ray Free Electron Laser Pulses by :
Download or read book Reflection of Attosecond X-ray Free Electron Laser Pulses written by and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to utilize hard x-ray free electron lasers (XFEL's) when they are extended to attosecond pulse lengths, it is necessary to choose optical elements with minimal response time. Specular grazing incidence optics made of low-Z materials are popular candidates for reflectors since they are likely to withstand x-ray damage and provide sufficiently large reflectivities. Using linear-optics reflection theory, we calculated the transient reflectivity of a delta-function electric pulse from a homogeneous semi-infinite medium as a function of angle of incidence for s- and p-polarized light. We specifically considered the pulse response of Be, diamond, silicon carbide, and silicon, all of which are of relevance to the XFEL's that are currently being built. We found that the media emit energy in a damped oscillatory way, and that the impulse-response times are shorter than 0.3 fs for normal incidence. For grazing incidence, the impulse-response time is substantially shorter, making grazing-incidence mirrors a good choice for deep-sub-femtosecond reflective optics.
Book Synopsis Purified Self-amplified Spontaneous Emission (pSASE) Free-electron Lasers with Slippage-boosted Filtering by :
Download or read book Purified Self-amplified Spontaneous Emission (pSASE) Free-electron Lasers with Slippage-boosted Filtering written by and published by . This book was released on 2013 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Physics of Free Electron Lasers by : E.L. Saldin
Download or read book The Physics of Free Electron Lasers written by E.L. Saldin and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Free Electron Laser (FEL) will be a crucial tool for research and industrial applications. This book describes the physical fundamentals of FELs on the basis of classical mechanics, electrodynamics, and the kinetic theory of charged particle beams, and will be suitable for graduate students and scientists alike. After a short introduction, the book discusses the theory of the FEL amplifier and oscillator, diffraction effects in the amplifier, and waveguide FEL.
Book Synopsis Experimental Characterization of the Saturating, Near Infrared, Self-amplified Spontaneous Emission Free Electron Laser by : Alex Murokh
Download or read book Experimental Characterization of the Saturating, Near Infrared, Self-amplified Spontaneous Emission Free Electron Laser written by Alex Murokh and published by . This book was released on 2002 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ultrafast Phenomena XIX by : Kaoru Yamanouchi
Download or read book Ultrafast Phenomena XIX written by Kaoru Yamanouchi and published by Springer. This book was released on 2015-01-24 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest advances in ultrafast science, including both ultrafast optical technology and the study of ultrafast phenomena. It covers picosecond, femtosecond, and attosecond processes relevant to applications in physics, chemistry, biology, and engineering. Ultrafast technology has a profound impact in a wide range of applications, amongst them biomedical imaging, chemical dynamics, frequency standards, material processing, and ultrahigh-speed communications. This book summarizes the results presented at the 19th International Conference on Ultrafast Phenomena and provides an up-to-date view of this important and rapidly advancing field.
Book Synopsis Self-amplified Spontaneous Emission in Smith-Purcell Free-electron Lasers by :
Download or read book Self-amplified Spontaneous Emission in Smith-Purcell Free-electron Lasers written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Analytical Study of a High Gain Self Amplified Spontaneous Emission Free Electron Laser Operating in a Large Spectral Bandwidth Regime by : Gerard Cosmos Andonian
Download or read book Experimental and Analytical Study of a High Gain Self Amplified Spontaneous Emission Free Electron Laser Operating in a Large Spectral Bandwidth Regime written by Gerard Cosmos Andonian and published by . This book was released on 2006 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Undulators, Wigglers and Their Applications by : Hideo Onuki
Download or read book Undulators, Wigglers and Their Applications written by Hideo Onuki and published by CRC Press. This book was released on 2002-10-17 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: A "wiggler" is an insertion device used for spatially concentrating radiation for research purposes, and an "undulator" is a multi-period wiggler. Undulator and wiggler devices are inserted in a free straight section of the storage ring of the synchrotron. This book explores the radiation produced by these insertion devices, the engineering and ass
