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LLE Review, Quarterly Report: Volume 66, January-March 1996

Description: This volume of the LLE Review, covering the period January-March 1996, contains three articles related to spherical implosions and their diagnosis, one article that provides an analysis of laser-plasma interactions, and three articles on advanced technologies developed at LLE.
Date: June 1, 1996
Creator: Boehly, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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LLE Review, Quarterly Report: Volume 79, April-June 1999

Description: This volume of the Laboratory for Laser Energetics (LLE) Review, covering the period April-June 1999, features a theoretical analysis of direct-drive target performance on National Ignition Facility (NIF). In this article R. P. J. Town, J. A. Delettrez, R. Epstein, V. N. Goncharov, R. L. McCrory, P. W. McKenty, R. W. Short, and S. Skupsky detail ignition target designs developed at LLE specifically to achieve successful direct-drive ignition on the NIF facility. A baseline ''all-DT'' target des… more
Date: April 1, 1999
Creator: Morse, Samuel F. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
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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
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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
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LLE Review, Quarterly Report: Volume 73, October-December 1997

Description: This progress report contains discussion on the following topics: A high-bandwidth electrical-waveform generator based on aperture-coupled striplines for OMEGA pulse-shaping applications; sweep deflection circuit development using computer-aided circuit design for the OMEGA multichannel streak camera; D-{sup 3}He protons as a diagnostic for target {rho}R; growth rates of the ablative Rayleigh-Taylor instability in inertial confinement fusion; three-dimensional analysis of the power transfer bet… more
Date: April 1, 1998
Creator: Jacobs, Stephen D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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LLE Review, Quarterly Report: Volume 65, October-December 1995

Description: This volume of the LLE Review, covering the period October-December 1995, contains a description of the generation and characterization of continuous, deep-surface-relief phase plates that are more efficient and versatile than previous designs. The LLE program plan has scheduled a number of enhancements to OMEGA`s performance and uniformity, the first of which is the implementation of these new distributed phase plates. Other articles in this volume include the discussion of an x-ray diagnostic… more
Date: June 1, 1996
Creator: Boehly, T. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
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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
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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
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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
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LLE Review, Quarterly Report: Volume 80, July-September 1999

Description: This volume of the LLE Review, covering the period July-September 1999, features a theoretical analysis of a process that generates mass perturbations of an imploding target driven by modulated laser illumination. The process, referred to as laser imprint, impacts the integrity of the shell during direct-drive implosions, potentially quenching target performance. In this article V. N. Goncharov, J. A. Delettrez, S. Skupsky, and R. P. J. Town present a model of the generation of mass perturbatio… more
Date: January 7, 2000
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
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LLE Review, Quarterly Report: Volume 83, April-June 2000

Description: This volume of the LLE Review, covering April-June 2000, features an article by F. J. Marshall, T. Ohki, D. McInnis, Z. Ninkov, and J. Carbone, who detail the conversion of the OMEGA time-integrated x-ray diagnostics to electronic readout using direct-detection x-ray cameras [charge-injection devices (CID's)]. Pinhole and x-ray microscope images are shown along with inferred calibration measurements of the CID cameras. Currently, the same cameras are being used to obtain x-ray spectra in a TIM-… more
Date: December 2000
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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LLE Review, Quarterly Report: Volume 84, July-September 2000

Description: This volume of the LLE Review, covering July-September 2000, begins with an article by T. R. Boehly, V. N. Goncharov, O. Gotchev, J. P. Knauer, D. D. Meyerhofer, D. Oron, S. P. Regan, Y. Srebro, W. Seka, D. Shvarts, S. Skupsky, and V.A. Smalyuk, who describe measurements of the effect of beam smoothing and pulse shape on imprinting. (Imprinting is defined as the imposition of pressure perturbations on the target by spatial variations in the laser intensity.) A principal result is the observatio… more
Date: December 1, 2000
Creator: Marshall, Frederic J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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LLE Review, Quarterly Report: Volume 71, April-June 1997

Description: This volume of the LLE Review, covering the period April-June 1997, includes an article discussing the results from recent experiments performed on OMEGA. These experiments used a new beam-smoothing device-distributed polarization rotators-in concert with existing techniques to improve the on-target uniformity of each beam. The result of this improved radiation uniformity was a substantive reduction in imprinting-the nonuniformity caused by the laser. A novel way to study the time dependence of… more
Date: October 1, 1997
Creator: Harding, David
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
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LLE Review, Quarterly Report: Volume 60, July-September 1994

Description: This volume contains articles on efficient generation of second-harmonic radiation from short-pulse lasers; calculation of the stabilization cutoff wave numbers for the Rayleigh-Taylor instability; a high-frequency silicon optical modulator; the angular dependence of stimulated Brillouin scattering; and femtosecond dynamics of ladder polymers. Three of these articles--second-harmonic generation, Rayleigh-Taylor cutoff wave numbers, and angular dependence of Brillouin scattering--are directly re… more
Date: December 31, 1994
Creator: Knauer, J. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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LLE Review, Quarterly Report: Volume 72, July-September 1997

Description: This volume of the LLE Review, covering the period July--September 1997, begins with a general introduction to LLE`s experimental physics program and a report on recent results. This article includes a useful summary of the system`s operational capabilities and system parameters. Other highlights of the wide variety of research presented in this issue are: a promising method to directly observe the cold compressed shell of an imploding target. The shell is normally observed by backlighting. The… more
Date: February 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
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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
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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
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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
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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
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