Download or read book Traveling Pulse Stimulated Raman Scattering written by Brian Edwin Kincaid and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Traveling Pulse Stimulted Raman Scattering written by Brian Edwin Kincaid and published by . This book was released on 1975 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial and Temporal Characteristics of Collimated and Focused Traveling Wave Raman Amplifiers written by George Ivan Kachen (Jr.) and published by . This book was released on 1975 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soliton like Stokes Pulses in Stimulated Raman Scattering written by Anders Höök and published by . This book was released on 1988 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory of Stokes Pulse Shapes in Transient Stimulated Raman Scattering written by R. L. Carman and published by . This book was released on 1970 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory of transient stimulated Raman scattering has been extended to include an arbitrary shape of the laser pump pulse. It is shown that the maximum Stokes gain depends on the total energy content per unit area of the pump pulse, and not on the instantaneous intensity for an exciting pulse of short duration. The Stokes pulse has a leading edge which rises sharply to a maximum, where the maximum occurs with some delay with respect to the maximum of the pump pulse. The trailing edge follows the decay of the pump. In a nondispersive medium, the gain is not reduced by frequency broadening of the laser output, while in a dispersive medium, considerable gain reduction is expected. Numerical results for various laser pulse shapes and spectral distributions are presented. (Author).
Download or read book Oblique Stimulated Raman Scattering of a Short Laser Pulse in a Plasma Channel written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The spatiotemporal evolution of parametric instabilities such as stimulated Raman scattering is studied analytically in time and two spatial dimensions. Initial and boundary conditions are chosen to represent the entrance, propagation, and exit of a laser pulse of finite extent as it progresses through a homogeneous collisional plasma channel. For most scattering angles daughter wave growth is enhanced by lateral reflections within the channel. At late times the two-dimensional interaction approaches a one-dimensional damped mode in which the dissipative loss from lateral transmission of the Stokes wave through the channel boundaries is equivalent to an overall damping of the Stokes amplitudes within the channel.
Download or read book Stimulated Raman Scattering written by Nikolaĭ Gennadievich Basov and published by . This book was released on 1982 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatiotemporal Evolution of Stimulated Raman Scattering Driven by Short Laser Pulses written by Edward J. Turano and published by . This book was released on 1998 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Backward Stimulated Raman Scattering System for Pulse Compression written by William D. Lindsay (2LT, USAF.) and published by . This book was released on 1980 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Transient Stimulated Raman Scattering and Self Focusing in the Picosecond Time Regime written by John Francis Reintjes and published by . This book was released on 1971 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high intensities and short durations available in mode locked laser pulses have made possible the study of optical interactions with matter in entirely new regimes of intensity and time. Because of the large electric fields present in these pulses, third order susceptibilities can determine the dominant optical response of a medium. In addition, the extremely short durations of these pulses causes many nonlinear optical interactions to become transient, since the pulse is over before the medium can fully respond. In this report, a study of two third order processes, Stimulated Raman Scattering and self-focusing, with picosecond pulses is reported. A time of flight technique is used to study the propagation properties of a self-focused beam. These results are compared with recently developed transient theories of the self-focusing process which result from numerical integration of the self-focusing equations for both phase and amplitude. Many of the propagation and spectral properties of the self-focused pulses are successfully accounted for by the transient theory which predicts a region of stabilized duration and diameter in the tail of the pulse which is constant in form over many centimeters in the cell. Finally, the symmetry of experimental spectra is not fully accounted for in the transient theory, and additional explanations of this effect are proposed. The design and construction of a diffraction limited Nd:glass mode locked laser system with reproducible output pulses containing peak intensities of about 10 GW/sq cm is also described. (Author).
Download or read book Sonograms of First Stokes Pulses Produced by Stimulated Raman Scattering in an Optical Fiber written by Peng Her and published by . This book was released on 1997 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrashort Light Pulses written by S.L. Shapiro and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soon after the invention of the laser, a brand-new area of endeavour emerged after the discovery that powerful ultrashort (picosecond) light pulses could be extracted from some lasers. Chemists, physicists, and engineers quickly recognized that such pulses would allow direct temporal studies of extremely rapid phenomena requiring, however, development of revolutionary ultrafast optical and electronic devices. For basic research the development of picosecond pulses was highly important because experimentalists were now able to measure directly the motions of atoms and molecules in liquids and solids: by disrupting a material from equilibrium with an intense picosecond pulse and then recording the time of return to the equilibrium state by picosecond techniques. Studies of picosecond laser pulses-their generation and diagnostic tech niques-are still undergoing a fairly rapid expansion, but a critical review of the state of the art by experienced workers in the field may be a timely help to new experimentalists. We shall review the sophisticated tools developed in the last ten years, including the modelocked picosecond-pulse-emitting lasers, the picosecond detection techniques, and picosecond devices. Moreover, we shall outline the basic foundations for the study of rapid events in chemistry and physics, which have emerged after many interesting experiments and which are now being applied in biology. An in-depth coverage of various aspects of the picosecond field should be helpful to scientists and engineers alike.
Download or read book Development of a Backward Stimulated Raman Scattering System for Pulse Compression written by William D. Lindsay and published by . This book was released on 1981 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Raman pulse compression system utilizing backward stimulated Raman scattering (BSRS) within a methane gas cell six feet in length was built and tested. A 12 MW giant pulse ruby laser with a pulsewidth of 12 ns(FWHM) was focused within the gas cell with a 10 cm focal length lens. The resulting reverse Stokes pulse at 8704 A had a maximum power of 15 MW and a minimum pulsewidth of 800 ps(FWHM). The peak power of the reverse Stokes pulse as well as the threshold power for BSRS were measured as a function of pressure. The shortest and most intense reverse Stokes pulses were obtained in the pressure range of 150 - 175 psi with an input energy of 125 - 160 mJ. The short, intense pulses produced by this system should be useful in the investigation of events occurring on a subnanosecond time scale such as semiconductor carrier diffusion processes. The competing nonlinear processes of stimulated Brillouin scattering (SBS) and gas breakdown were also investigated and found to limit the efficiency of this system to 10 percent. (Author).
Download or read book Investigation of Stimulated Raman Scattering Using Short pulse Diffraction Limited Laser Beam Near the Instability Threshold written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Short pulse laser plasma interaction experiments using diffraction limited beams provide an excellent platform to investigate the fundamental physics of Stimulated Raman Scattering. Detailed understanding of these laser plasma instabilities impacts the current inertial confinement fusion ignition designs and could potentially impact fast ignition when higher energy lasers are used with longer pulse durations (> 1 kJ and> 1 ps). Using short laser pulses, experiments can be modeled over the entire interaction time of the laser using particle-in-cell codes to validate our understanding quantitatively. Experiments have been conducted at the Trident laser facility and the LULI (Laboratoire pour l'Utilisation des Lasers Intenses) to investigate stimulated Raman scattering near the threshold of the instability using 527 nm and 1059 nm laser light respectively with 1.5-3.0 ps pulses. In both experiments, the interaction beam was focused into a pre-ionized He gas-jet plasma. Measurements of the reflectivity as a function of intensity and k[lambda]{sub D} were completed at the Trident laser facility. At LULI, a 300 fs Thomson scattering probe is used to directly measure the density fluctuations of the driven electron plasma and ion acoustic waves. Work is currently underway comparing the results of the experiments with simulations using the VPIC [K.J. Bowers, et at., Phys. Plasmas, 15 055703 (2008)] particle-in-cell code. Details of the experimental results are presented in this manuscript.
Download or read book Aspects of Stimulated Raman Scattering and Its Influence on Short Pulse and Soliton in Optical Fibres with Kerr Law and Arbitrary Nonlinearity written by Maximilian Josef Lederer and published by . This book was released on 1994 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Topics on Stimulated Raman Effect written by Richard H. Pantell and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Tunable infrared generation by Raman scattering; and Stimulated Raman scattering for an infrared active transition.
Download or read book Stimulated Raman Scattering in Optical Fibers Spontaneous Initiation and Spatial Propagation written by Raymond J. Hawkins and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stimulated Raman scattering can be treated in either the frequency domain or the time domain. Traditionally, cw waves and long optical pulses have been treated in the frequency domain where the problem can be reduced to a set of coupled wave equations which include self and cross phase modulation as well as the Raman gain. Frequency domain analysis, however, becomes intractable for ultrashort optical pulses where spectral bandwidths become comparable to the Raman frequency shift. Here a time domain approach is more appropriate.
