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captions transcript

[News Clip: Titanic]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: December 20, 1997, 6:00 p.m.
Duration: 1 minute 41 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Man of year]

Description: Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date: December 20, 1997, 6:00 p.m.
Duration: 41 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Shopping]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: December 20, 1997, 10:00 p.m.
Duration: 1 minute 24 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Laser conditioning study of KDP on the optical sciences laser using large area beams

Description: Considerable attention has been paid over the years to the problem of growing high purity KDP and KD*P to meet threshold requirements on succeeding generations of inertial confinement fusion lasers at LLNL. While damage thresholds for these materials have increased over time, the current National Ignition Facility (NIF) maximum fluence requirement (redline) for KD*P frequency triplers of 14.3 J/cm{sup 2} at 351 nm, 3 ns has not been reached without laser (pre)conditioning. It is reasonable to a… more
Date: December 20, 1997
Creator: Runkel, M.; DeYoreo, J.; Sell, W. & Milam, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Photothermal mapping of defects in the study of builk damage in KDP

Description: Interest in producing high-damage-threshold KH{sub 2}PO{sub 4} (KDP) and (D{sub x}H{sub 1-x}){sub 2}PO{sub 4} (DKDP) for frequency conversion and optical switching applications is driven by the requirements of the National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory (LLNL). At present only the best crystals meet the NIF system requirements at the third harmonic (351 nm) and only after a laser conditioning process. Neither the mechanism for damage in bulk KDP nor the me… more
Date: December 20, 1997
Creator: Woods, B.; Yan, M.; DeYoreo, J.; Kozlowski, M.; Radouski, H. & Wu, Z.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effect of impurities and stress on the damage distributions of rapidly grown KDP crystals

Description: Development of high damage threshold, 50 cm, rapidly grown KF*P frequency triplers for operation of the National Ignition Facility (NIF) in the 14 J/cm2, 351 nm, 3 ns regime requires a thorough understanding of how the crystal growth parameters and technologies affect laser induced damage. Of particular importance is determining the effect of ionic impurities (e.g. Cr3+, Fe3+, Al3+) which may be introduced in widely varying concentrations via starting salts. In addition, organic particulates ca… more
Date: December 20, 1997
Creator: Runkel, M.; Tan, M.; De Yoreo, J. & Zaitseva, N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Depth profiling of polishing-induced contamination on fused silica surfaces

Description: Laser-induced damage on optical surfaces is often associated with absorbing contaminants introduced by the polishing process. This is particularly the case for UV optics. Here secondary ion mass spectroscopy (SIMS) was used to measure depth profiles of finished process contamination on fused silica surfaces. Contaminants detected include the major polishing compound components (Ce or Zr from CeO2 or ZrO2), Al presently largely because of the use of Al2O3 in the final cleaning process (Fe, Cu,Cr… more
Date: December 20, 1997
Creator: Kozlowski, M.R.; Carr, J.; Hutcheon, I,; Torres, R.; Sheehan, L. Camp, D. & Yan, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Laser driven radiography

Description: Intense laser (> 1021 W/cm{sup 3}) driven hard x-ray sources offer a new alternative to conventional electron accelerator Bremsstrahlung sources. These laser driven sources offer considerable simplicity in design and potential cost advantage for multiple axis views. High spatial and temporal resolution is achievable as a result of the very small source size (<100 um) and short-duration of the laser pulse. We have begun a series of experiments with the Petawatt laser at LLNL to determine the pho… more
Date: December 20, 1997
Creator: Perry, M.D.; Sefcik, J. & Cowan, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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