Raluca A Negres

Summary

Affiliation: Lawrence Livermore National Laboratory
Country: USA

Publications

  1. doi request reprint Growth behavior of laser-induced damage on fused silica optics under UV, ns laser irradiation
    Raluca A Negres
    Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
    Opt Express 18:19966-76. 2010
  2. ncbi request reprint Investigation of laser annealing parameters for optimal laser-damage performance in deuterated potassium dihydrogen phosphate
    R A Negres
    Lawrence Livermore National Laboratory, Livermore, California 94551 0808, USA
    Opt Lett 30:2766-8. 2005
  3. ncbi request reprint Expedited laser damage profiling of KDxH(2-x)PO4 with respect to crystal growth parameters
    R A Negres
    Lawrence Livermore National Laboratory, Livermore, California 94551 0808, USA
    Opt Lett 31:3110-2. 2006
  4. doi request reprint Dynamics of transient absorption in bulk DKDP crystals following laser energy deposition
    R A Negres
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
    Opt Express 20:20447-58. 2012
  5. doi request reprint Probability of growth of small damage sites on the exit surface of fused silica optics
    Raluca A Negres
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
    Opt Express 20:13030-9. 2012
  6. doi request reprint Exploration of the multiparameter space of nanosecond-laser damage growth in fused silica optics
    Raluca A Negres
    Lawrence Livermore National Laboratory, Livermore, California 94550, USA
    Appl Opt 50:D12-20. 2011
  7. doi request reprint Dynamics of material modifications following laser-breakdown in bulk fused silica
    R A Negres
    Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
    Opt Express 18:10642-9. 2010
  8. ncbi request reprint Laser damage performance of KD2-chiHchiPO4 crystals following X-ray irradiation
    R A Negres
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
    Opt Express 16:16326-33. 2008
  9. doi request reprint Characterization of ejected fused silica particles following surface breakdown with nanosecond pulses
    Rajesh N Raman
    Lawrence Livermore National Laboratory, Livermore, California 94550, USA
    Opt Express 20:27708-24. 2012
  10. doi request reprint Time-resolved imaging of processes associated with exit-surface damage growth in fused silica following exposure to nanosecond laser pulses
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
    Opt Express 21:4875-88. 2013

Collaborators

Detail Information

Publications13

  1. doi request reprint Growth behavior of laser-induced damage on fused silica optics under UV, ns laser irradiation
    Raluca A Negres
    Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
    Opt Express 18:19966-76. 2010
    ..These salient behaviors are tied to the damage morphology and suggest a shift in the fundamental growth mechanisms for pulses in the 1-5 ns range...
  2. ncbi request reprint Investigation of laser annealing parameters for optimal laser-damage performance in deuterated potassium dihydrogen phosphate
    R A Negres
    Lawrence Livermore National Laboratory, Livermore, California 94551 0808, USA
    Opt Lett 30:2766-8. 2005
    ..Results suggest that a near twofold improvement to the laser-damage performance can be achieved with a limited number of preexposure pulses...
  3. ncbi request reprint Expedited laser damage profiling of KDxH(2-x)PO4 with respect to crystal growth parameters
    R A Negres
    Lawrence Livermore National Laboratory, Livermore, California 94551 0808, USA
    Opt Lett 31:3110-2. 2006
    ..The aim is to explore a new expedited method to study the growth parameters affecting the laser-induced damage resistance in DKDP material to obtain crystals with enhanced performance...
  4. doi request reprint Dynamics of transient absorption in bulk DKDP crystals following laser energy deposition
    R A Negres
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
    Opt Express 20:20447-58. 2012
    ..Each method leads to a very different volume of material being affected, which provides for different material thermal relaxation times to help better understand the processes involved...
  5. doi request reprint Probability of growth of small damage sites on the exit surface of fused silica optics
    Raluca A Negres
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
    Opt Express 20:13030-9. 2012
    ..We also develop models for use in growth prediction. In addition, we show that laser exposure history also influences the behavior of individual sites...
  6. doi request reprint Exploration of the multiparameter space of nanosecond-laser damage growth in fused silica optics
    Raluca A Negres
    Lawrence Livermore National Laboratory, Livermore, California 94550, USA
    Appl Opt 50:D12-20. 2011
    ..The ability to identify which sites are likely to grow abnormally fast in advance of the manifestation of such behavior will significantly enhance the accuracy of predictive models over those based on average growth behaviors...
  7. doi request reprint Dynamics of material modifications following laser-breakdown in bulk fused silica
    R A Negres
    Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
    Opt Express 18:10642-9. 2010
    ..The results reveal that the cracks and melted core exhibit a transient absorption up until about 300 ns and 200 micros delay times, respectively, and suggest that the melted region returns to solid phase at approximately 70 ms delay...
  8. ncbi request reprint Laser damage performance of KD2-chiHchiPO4 crystals following X-ray irradiation
    R A Negres
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
    Opt Express 16:16326-33. 2008
    ..This behavior is attributed to a change in the physical properties of the precursors which, in turn, affect their ability to initiate damage following interaction with X-ray generated defects...
  9. doi request reprint Characterization of ejected fused silica particles following surface breakdown with nanosecond pulses
    Rajesh N Raman
    Lawrence Livermore National Laboratory, Livermore, California 94550, USA
    Opt Express 20:27708-24. 2012
    ..Assuming the emission is thermal in origin, data suggest an initial average temperature on the order of at least 0.5 eV...
  10. doi request reprint Time-resolved imaging of processes associated with exit-surface damage growth in fused silica following exposure to nanosecond laser pulses
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA
    Opt Express 21:4875-88. 2013
    ....
  11. doi request reprint Predictive modeling techniques for nanosecond-laser damage growth in fused silica optics
    Zhi M Liao
    Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
    Opt Express 20:15569-79. 2012
    ..Furthermore, we have also found that machine learning can be used as an important tool to explore and increase our understanding of the growth process...
  12. doi request reprint Investigation of the electronic and physical properties of defect structures responsible for laser-induced damage in DKDP crystals
    Stavros G Demos
    Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
    Opt Express 18:13788-804. 2010
    ....
  13. doi request reprint Measurement of the Raman scattering cross section of the breathing mode in KDP and DKDP crystals
    Stavros G Demos
    Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94551, USA
    Opt Express 19:21050-9. 2011
    ....