40 Matching Results

Search Results

Results: 1 - 24 next
open access

LLE Review, Quarterly Report: Volume 98, January-March 2004

Description: This volume of the LLE Review, covering January-March 2004, features ''Performance of 1-THz-Bandwidth, 2-D Smoothing by Spectral Dispersion and Polarization Smoothing of High-Power, Solid-State Laser Beams'', by S. P. Regan, J. A. Marozas, R. S. Craxton, J. H. Kelly, W. R. Donaldson, P. A. Jaanimagi, D. Jacobs-Perkins, R. L. Keck, T. J. Kessler, D. D. Meyerhofer, T. C. Sangster, W. Seka, V.A. Smalyuk, S. Skupsky, and J. D. Zuegel (p. 49). Laser-beam smoothing achieved with 1-THz-bandwidth, two-… more
Date: August 10, 2004
Creator: Goncharov, Valeri N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 61, October-December 1994

Description: This volume of the LLE review, covering the period of October--December 1994, contains articles on a diagnostic method employing krypton spectroscopy for measurement of temperature and shell-fuel mixing in high-temperature implosions; the first direct assessment of the ion-acoustic decay instability in a large-scale length, hot plasma; measurements of polarization mode dispersion and group-velocity walkaway in birefringent media using a frequency domain interferometer; an evaluation of the magn… more
Date: December 31, 1994
Creator: Marshall, Kenneth L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 49, October-December 1991

Description: This volume of the LLE Review, covering the period October-December 1991, contains articles on the analysis of argon-filled target experiments, and a theoretical analysis of the impact of nonlocal heat transport in laser filamentation in plasmas. In the Advanced Technology section there is an article on mechanisms that affect thin-film conductivity, and a report on the gain characteristics of the 20-cm SSA prototype amplifier to be used in the OMEGA Upgrade. Finally, the activities of the Natio… more
Date: January 1, 1991
Creator: Keck, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 54, January-March 1993

Description: This volume of the LLE Review covers the three-month period January--March 1993. The OMEGA laser facility was decommissioned during this quarter to make room for the OMEGA Upgrade laser facility. The decommissioning is described in this volume. Electron thermal transport in the corona and laser-irradiation uniformity are related issues for direct-drive laser fusion. Thermal transport can affect the laser-irradiation uniformity requirements. The status of Fokker-Planck modeling of electron trans… more
Date: July 1, 1993
Creator: Meyerhofer, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 50, January-March 1992

Description: This volume of the LLE Review, covering the period January--March 1992, contains articles on the use of diffraction gratings in laser applications, and the fabrication of gratings for use in these applications. there are two articles on the use of lasers to explore fundamental physics issues and an article on the use of a solid-state diode array for x-ray imaging. Finally, the activities of the National Laser Users Facility and the GDL and OMEGA laser systems are summarized.
Date: 1992
Creator: Keck, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 118, January-March 2009

Description: This issue has the following articles: (1) Applied Plasma Spectroscopy: Laser-Fusion Experiments; (2) Relativistic Electron-Beam Transport Studies Using High-Resolution, Coherent Transition Radiation Imaging; (3) Pressure-Driven, Resistive Magnetohydrodynamic Interchange Instabilities in Laser-Produced, High-Energy-Density Plasmas; (4) Extended Model for Polymer Cholesteric Liquid Crystal Flake Reorientation and Relaxation; (5) Modeling the Effects of Microencapsulation on the Electro-Optic Beh… more
Date: August 3, 2009
Creator: Bittle, Wade A.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 43, April-June 1990

Description: This volume of the LLE Review, covering the period April--June 1990, contains articles in two main sections, Progress in Laser Fusion and Advanced Technology Developments. The first article presents the theoretical interpretation of the glass-ablator cryogenic-implosion experiments recently conducted on OMEGA. It is followed by an article describing the analysis of neutron time-of-flight data taken during DT and DD experiments; and a discussion of the improvements to laser diagnostics that now … more
Date: January 1, 1990
Creator: Kumpan, S. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 116, July-September 2008

Description: This issue has the following articles: (1) Optimizing Electron-Positron Pair Production on kJ-Class High-Intensity Lasers for the Purpose of Pair-Plasma Creation; (2) Neutron Yield Study of Direct-Drive, Low-Adiabat Cryogenic D2 Implosions on OMEGA; (3) Al 1s-2p Absorption Spectroscopy of Shock-Wave Heating and Compression in Laser-Driven Planar Foil; (4) A Measurable Lawson Criterion and Hydro-Equivalent Curves for Inertial Confinement Fusion; (5) Pulsed-THz Characterization of Hg-Based, High-… more
Date: March 12, 2010
Creator: Marozas, John A.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 114, January-March 2008

Description: This volume of the LLE Review, covering January-March 2008, features 'Cryogenic Targets: Current Status and Future Development', by D. R. Harding, D. H. Edgell, M. D. Wittman, L. M. Elasky, S. J. Verbridge, A. J. Weaver, L. D. Lund, W. Seka, W. T. Shmayda, R. T. Janezic, M. J. Shoup III, M. Moore, R. Junquist, and A. V. Okishev. In this article (p. 57), the authors report on the status of layering cryogenic DT and D{sub 2} targets at LLE for inertial confinement fusion (ICF) targets. This criti… more
Date: July 30, 2008
Creator: Zuegel, Jonathan D.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 117, October-December 2008

Description: This volume of the LLE Review, covering October-December 2008, features 'Demonstration of the Shock-Timing Technique for Ignition Targets at the National Ignition Facility' by T. R. Boehly, V. N. Goncharov, S. X. Hu, J. A. Marozas, T. C. Sangster, D. D. Meyerhofer (LLE), D. Munro, P. M. Celliers, D. G. Hicks, G. W. Collins, H. F. Robey, O. L. Landen (LLNL), and R. E. Olson (SNL). In this article (p. 1) the authors report on a technique to measure the velocity and timing of shock waves in a caps… more
Date: May 28, 2009
Creator: Bittle, Wade A.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 44, July-September 1990

Description: This volume of the LLE Review, covering the period July--September 1990, contains articles in two main sections: the OMEGA Upgrade and Advanced Technology Developments. The first article in Section 1 describes the changes in the overall system design of the 60-beam OMEGA Upgrade since the release of the OMEGA Upgrade Preliminary Design Document in October 1989. It is followed by an article that presents results of an investigation into stimulated rotational Raman scattering as it relates to the… more
Date: 1990
Creator: Kumpan, S. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 120, July-September 2009

Description: This issue has the following articles: (1) The Omega Laser Facility Users Group Workshop; (2) The Effect of Condensates and Inner Coatings on the Performance of Vacuum Hohlraum Targets; (3) Zirconia-Coated-Carbonyl-Iron-Particle-Based Magnetorheological Fluid for Polishing Optical Glasses and Ceramics; (4) All-Fiber Optical Magnetic Field Sensor Based on Faraday Rotation in Highly Terbium Doped Fiber; (5) Femtosecond Optical Pump-Probe Characterization of High-Pressure-Grown Al{sub 0.86}Ga{sub … more
Date: February 19, 2001
Creator: Edgell, Dana H.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 55, April-June 1993

Description: This volume of the LLE Review, covering the period April--June 1993, contains articles on spectral features from argon-filled target implosions on OMEGA, and on the theory of an implicit difference scheme for the Fokker-Planck equation. The advanced technology section includes reports on a novel polymer liquid-crystal wave plate and a new scheme for phase conversion of the OMEGA Upgrade beams that results in greater, smoother energy deposition on fusion targets. Finally, reports on the as-desig… more
Date: October 1, 1993
Creator: Hutchison, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 58, January-March 1994

Description: This volume of the LLE Review, covering the period Jan - Mar 1994, contains articles on backlighting diagnostics; the effect of electron collisions on ion-acoustic waves and heat flow; using PIC code simulations for analysis of ultrashort laser pulses interacting with solid targets; creating a new instrument for characterizing thick cryogenic layers; and a description of a large-aperture ring amplifier for laser-fusion drivers. Three of these articles - backlighting diagnostics; characterizing … more
Date: July 1, 1994
Creator: Simon, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 119, April-June 2009

Description: This issue has the following articles: (1) Shock-Ignition Experiments on OMEGA at NIF-Relevant Intensities; (2) Laser-Driven Magnetic-Flux Compression in High-Energy-Density Plasmas; (3) Lorentz Mapping of Magnetic Fields in Hot, Dense Plasmas; (4) Characterization and Optimization of Yb-Doped Photonic-Crystal Fiber Rod Amplifiers Using Spatially Resolved Spectral Interferometry; (5) Optical Differentiation and Multimillijoule {approx}150-ps Pulse Generation in a Regenerative Amplifier with a T… more
Date: October 22, 2009
Creator: Edgell, Dana H.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 51, April-June 1992

Description: This volume of the LLE Review, covering the period April--June 1992, contains articles on laser-plasma interaction experiments in long-scale-length plasmas and on the theory of a new form of the stimulated Brillouin scattering instabilitity. The advanced technology section includes reports on the optical response of superconducting films, the development of high-reflectance transport mirrors for the OMEGA Upgrade, and a new high-brightness mono-mode laser oscillator. Finally, the activities of … more
Date: December 31, 1992
Creator: Short, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 48, July-September 1991

Description: This volume of the LLE Review, contains articles describing the results of imploding-target burnthrough experiments using smoothing by spectral dispersion (SSD), and a practical nonlocal model for electron transport in laser plasmas. The section on advanced technology includes a report on explosion fraction measurements of water-cooled xenon flashlamps, results on perfluorinated copolymer coatings for high-power laser applications, and a time-resolved study of surface disordering of Pb(110). A … more
Date: December 31, 1991
Creator: Jaanimagi, P. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 52, July-September 1992

Description: This volume of the LLE Review, covering the period July--September 1992, contains articles on methods of balancing the beam power on the OMEGA Upgrade and on the damping of ion-sound waves in laser-produced plasmas. The advanced technology section includes reports on optical nonlinearities in high-temperature superconductors, a method of increasing gas retention time for laser-fusion targets, and a study of stimulated Raman scattering of laser beams in air. Highlights of the research reported i… more
Date: December 31, 1992
Creator: Short, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 56, July-September 1993

Description: This volume of the LLE Review, covering the period July--September 1993, contains articles on self-focusing of broad-bandwidth laser light with angular dispersion, laser patterning of thin-film circuits, and construction of foam-shell fusion targets. Reports on the detailed designs of major subsystems of the OMEGA Upgrade and on the continuing activation of the upgraded Glass Development Laser system are summarized. Descriptions of research proposals for NLUF are also included in this issue. Hi… more
Date: December 31, 1993
Creator: Hutchison, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 53, October-December 1992

Description: This volume of the LLE Review covers the three-month period October--December 1992. On 18 December, the OMEGA Laser Facility fired its last shot. It will be decommissioned during the next quarter to make room for the OMEGA Upgrade Laser Facility. This volume deals with two areas of interest for the OMEGA Upgrade, the development of advanced x-ray and neutron diagnostics and the development of long-pulse (>1-ns) laser sources. The first three articles discuss the development of time-dependent di… more
Date: December 31, 1992
Creator: Meyerhofer, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 57, October-December 1993

Description: During this quarter, the visible fruits of long design labors on the OMEGA Upgrade began to appear. The target mirror structure was put in place, along with the target chamber itself. The laser bay structures were also installed, and the bay is now being prepared to receive optomechanical, control, and laser assemblies. Further details are in the OMEGA Upgrade Status Report in this issue. Theory and analysis of previous experiments continued during this reporting period. Articles contained here… more
Date: December 31, 1993
Creator: Simon, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 62, January-March 1995

Description: This volume of the LLE review, covering the period of January-March 1995, contains articles on the evaluation of the mechanism for laser damage in OMEGA UV multilayer coatings using a combination of conventional laser-damage characterization methods and atomic force microscopy; a dual-amplitude, fiber-coupled waveguide integrated-optic modulation device for generating temporally shaped optical pulses in OMEGA-, a proposal for modifying the indirect-drive irradiation geometry of the National Ign… more
Date: July 1, 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 70, January-March 1997

Description: This volume of the LLE Review includes an article on the status of the optics on the OMEGA laser system after the first 18 months of operation. A vigorous program to monitor the performance of the optics has been followed since the inception of the OMEGA laser. The article presents results from these observations and defines the various types of possible damage. Many of the optics have not damaged, such as the frequency-conversion crystals, polarizers, calorimeters, and liquid crystal optics. T… more
Date: June 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLE Review, Quarterly Report: Volume 69, October-December 1996

Description: This volume of the LLE Review, covering the period October-December 1996, includes a review of 2-D SSD as implemented on the OMEGA laser system. A summary of the detailed mathematical formalism is shown, and the predicted level of uniformity achievable on OMEGA is given. The first experimental results on uniformity using narrow-band 2-D SSD are compared to theoretical calculations. Excellent agreement between experiment and theory is found, which gives confidence that broadband 2-D SSD with pol… more
Date: April 1, 1997
Creator: Town, Richard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen