All Stories

  1. Progress in Optical Synchronization for 2×10 PW Laser System at ELI-NP

    Article • June 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Daniel Ursescu

  2. High-Repetition-Rate Targets for Plasma Mirror FROG on Chirped Picosecond Pulses

    Article • Photonics, May 2025, MDPI AG

    Dr Daniel Ursescu

  3. Assessing optical damage risks by simulating the amplification of back-reflection in a multi-petawatt laser system

    Article • High Power Laser Science and Engineering, January 2025, Cambridge University Press

    Dr Daniel Ursescu

  4. Efficient laser wakefield accelerator in pump depletion dominated bubble regime

    Article • Physical Review E, September 2024, American Physical Society (APS)

    Dr Daniel Ursescu

  5. Few-cycle, 100-TW-class laser pulses as efficient sources of nanocoulomb electron bunches and Bremsstrahlung

    Article • January 2024, Research Square

    Dr Daniel Ursescu

  6. Quality assessment for large-aperture optical elements inducing phase jumps

    Article • High Power Laser Science and Engineering, January 2024, Cambridge University Press

    Dr Daniel Ursescu

  7. Drift-free, 11 fs pulse delay stability in dual-arm PW-class laser systems

    Article • High Power Laser Science and Engineering, January 2024, Cambridge University Press

    Dr Daniel Ursescu

  8. Exploring fs-laser irradiation damage subthreshold behavior of dielectric mirrors via electrical measurements

    Article • High Power Laser Science and Engineering, December 2023, Cambridge University Press

    Dr Daniel Ursescu

  9. Target current and spatial modulations analysis for LIDT measurements using fs laser irradiation

    Article • November 2023, SPIE

    Dr Daniel Ursescu

  10. Simulations and Measurements for Signatures of Spatio-Temporal Couplings in Laser Fields

    Article • January 2023, Optical Society of America (OSA)

    Dr Daniel Ursescu

  11. Generation and optimization of optical vortices in PW-class laser systems

    Article • January 2023, Optical Society of America (OSA)

    Dr Daniel Ursescu

  12. On Target Optimisation of the ELI-NP High Power Laser System

    Article • January 2023, Optical Society of America (OSA)

    Dr Daniel Ursescu

  13. Post-compression of high-energy, sub-picosecond laser pulses

    Article • High Power Laser Science and Engineering, January 2023, Cambridge University Press

    Dr Daniel Ursescu

  14. Zernike-coefficient extraction via helical beam reconstruction for optimization (ZEHBRO) in the far field

    Article • High Power Laser Science and Engineering, January 2023, Cambridge University Press

    Dr Daniel Ursescu

  15. LIDT station development with femtosecond pulses at ELI-NP

    Article • December 2022, SPIE

    Dr Daniel Ursescu

  16. Influence of Spatio-Temporal Couplings on Focused Optical Vortices

    Article • Photonics, May 2022, MDPI AG

    Dr Daniel Ursescu

  17. Propagation of ultrashort laser fields with spatiotemporal couplings using Gabor’s Gaussian complex decomposition

    Article • Journal of the Optical Society of America A, January 2022, Optical Society of America (OSA)

    Dr Daniel Ursescu

  18. 10 PW Peak Power Laser at the Extreme Light Infrastructure Nuclear Physics – status updates

    Article • EPJ Web of Conferences, January 2022, EDP Sciences

    Dr Daniel Ursescu

  19. 10 PW peak power femtosecond laser pulses at ELI-NP

    Article • January 2022, Optical Society of America (OSA)

    Dr Daniel Ursescu

  20. 10 PW peak power femtosecond laser pulses at ELI-NP

    Article • High Power Laser Science and Engineering, January 2022, Cambridge University Press

    Dr Daniel Ursescu

  21. Qualification and Optimization of Helical Phase Pulses in PW-Class Laser Systems

    Article • January 2022, Optical Society of America (OSA)

    Dr Daniel Ursescu

  22. Spectral broadening for multi-Joule pulse compression in the APOLLON Long Focal Area facility

    Article • High Power Laser Science and Engineering, January 2022, Cambridge University Press

    Dr Daniel Ursescu

  23. Generation of shock trains in free liquid jets with a nanosecond green laser

    Article • Physical Review Fluids, December 2020, American Physical Society (APS)

    Dr Daniel Ursescu

  24. Current status and highlights of the ELI-NP research program

    Article • Matter and Radiation at Extremes, March 2020, American Institute of Physics

    Dr Daniel Ursescu

  25. 10 petawatt lasers for extreme light applications

    Article • February 2020, SPIE

    Dr Daniel Ursescu

  26. High-energy hybrid femtosecond laser system demonstrating 2 × 10 PW capability

    Article • High Power Laser Science and Engineering, January 2020, Cambridge University Press

    Dr Daniel Ursescu

  27. First HPLS Experiments at ELI-NP: Spectral Broadening in Thin Films

    Article • January 2020, Optical Society of America (OSA)

    Dr Daniel Ursescu

  28. Prospects for Ultra High Irradiance at Extreme Light Infrastructure - Nuclear Physics

    Article • January 2020, Optical Society of America (OSA)

    Dr Daniel Ursescu

  29. Propagation of Laser Beams by Decomposition into Gaussian Beamlets

    Article • June 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Daniel Ursescu

  30. Femtosecond Pulse Shortening using Cascaded Quadratic Nonlinearities for High Temporal Contrast

    Article • June 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Daniel Ursescu

  31. Wavefront Metrology Developments using Adaptive Optics and Debris Shield Wavefront Measurements

    Article • June 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Daniel Ursescu

  32. Using Frustrated Total Internal Reflection for High-Power Lasers Monitoring

    Article • January 2019, Optical Society of America (OSA)

    Dr Daniel Ursescu

  33. 10 PetaWatt Laser System for Extreme Light Physics

    Article • January 2019, Optical Society of America (OSA)

    Dr Daniel Ursescu

  34. Optical Thin Film Compression for Laser Induced Plasma Diagnostics

    Article • January 2019, Optical Society of America (OSA)

    Dr Daniel Ursescu

  35. Free space variable optical attenuator using frustrated total internal reflection with 70  dB dynamic range

    Article • Applied Optics, November 2018, Optical Society of America (OSA)

    Dr Daniel Ursescu

  36. The extreme light infrastructure—nuclear physics (ELI-NP) facility: new horizons in physics with 10 PW ultra-intense lasers and 20 MeV brilliant gamma beams

    Article • Reports on Progress in Physics, August 2018, Institute of Physics Publishing

    Dr Daniel Ursescu

  37. Characteristics of femtosecond laser pulses propagating in multiply ionized rare gases

    Article • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, October 2017, Elsevier

    Dr Daniel Ursescu

  38. New light in nuclear physics: The extreme light infrastructure

    Article • EPL (Europhysics Letters), January 2017, Institute of Physics Publishing

    Dr Daniel Ursescu

  39. Substrate surface patterning by optical near field modulation around colloidal particles immersed in a liquid

    Article • Optics Express, November 2016, Optical Society of America (OSA)

    Dr Daniel Ursescu

  40. Experimental demonstration of a collinear triple pulse grazing-incidence pumping scheme for a transient collisional pumped x-ray laser

    Article • Journal of Physics B Atomic Molecular and Optical Physics, October 2016, Institute of Physics Publishing

    Dr Daniel Ursescu

  41. New frontiers in nuclear physics with high-power lasers and brilliant monochromatic gamma beams

    Article • Physica Scripta, August 2016, Institute of Physics Publishing

    Dr Daniel Ursescu

  42. One long and two short pumping pulses control for plasma x-ray amplifier optimization

    Article • Optics Express, June 2016, Optical Society of America (OSA)

    Dr Daniel Ursescu

  43. Non-collinear spectral coherent combination of ultrashort laser pulses

    Article • Optics Express, March 2016, Optical Society of America (OSA)

    Dr Daniel Ursescu

  44. Laser-based acceleration for nuclear physics experiments at ELI-NP

    Article • EPJ Web of Conferences, January 2016, EDP Sciences

    Dr Daniel Ursescu

  45. Spatially resolved nanostructural transformation in graphite under femtosecond laser irradiation

    Article • Applied Surface Science, November 2015, Elsevier

    Dr Daniel Ursescu, Dr Cristiana-Eugenia-Ana Grigorescu

  46. Pattern formation on silicon by laser-initiated liquid-assisted colloidal lithography

    Article • Nanotechnology, October 2015, Institute of Physics Publishing

    Dr Daniel Ursescu

  47. Gain dynamics in quickly ionized plasma for seeded operated soft x-ray lasers

    Article • Optics Letters, October 2015, Optical Society of America (OSA)

    Dr Daniel Ursescu

  48. Seeded Operation of a Ne-like Titanium Soft X-Ray Laser

    Article • September 2015, Springer Science + Business Media

    Dr Andrew Rossall, Dr Daniel Ursescu

  49. Transient Collisionally Excited X-ray Lasers Pumped with One Long and Two Short Pulses

    Article • September 2015, Springer Science + Business Media

    Dr Daniel Ursescu

  50. The ELI–NP facility for nuclear physics

    Article • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, July 2015, Elsevier

    Dr Daniel Ursescu

  51. On-site holographic interference method for fast surface topology measurements and reconstruction

    Article • Physica Scripta, May 2015, Institute of Physics Publishing

    Dr Daniel Ursescu

  52. Multiple THz pulse generation with variable energy ratio and delay

    Article • Laser Physics Letters, February 2015, Institute of Physics Publishing

    Dr Daniel Ursescu

  53. New Frontiers in Nuclear Physics Research at ELI--NP

    Article • Acta Physica Polonica B, January 2015, Acta Physica Polonica B Editorial Office

    Dr Daniel Ursescu

  54. Perspectives for neutron and gamma spectroscopy in high power laser driven experiments at ELI-NP

    Article • January 2015, American Institute of Physics

    Dr Daniel Ursescu

  55. Q-switched laser-assisted grazing incidence pumping (QAGRIP) for efficient soft x-ray laser generation

    Article • Optics Letters, October 2014, Optical Society of America (OSA)

    Dr Daniel Ursescu

  56. Laser irradiation of carbon–tungsten materials

    Article • Journal of Physics D Applied Physics, August 2014, Institute of Physics Publishing

    Dr Daniel Ursescu, Dr Cristiana-Eugenia-Ana Grigorescu

  57. Phase measurement in long chirped pulses with spectral phase jumps

    Article • Optics Express, June 2014, Optical Society of America (OSA)

    Dr Daniel Ursescu

  58. Thin film beam splitter multiple short pulse generation for enhanced Ni-like Ag x-ray laser emission

    Article • Optics Letters, April 2014, Optical Society of America (OSA)

    Dr Daniel Ursescu

  59. Periodic striations on beryllium and tungsten surfaces by indirect femtosecond laser irradiation

    Article • Applied Physics Letters, March 2014, American Institute of Physics

    Dr Daniel Ursescu

  60. Cell Adhesion Response on Femtosecond Laser Initiated Liquid Assisted Silicon Surface

    Article • Current Topics in Medicinal Chemistry, February 2014, Bentham Science Publishers

    Dr Daniel Ursescu

  61. Spatial extension of the electromagnetic field from tightly focused ultra-short laser pulses

    Article • Laser and Particle Beams, January 2014, Cambridge University Press

    Dr Daniel Ursescu

  62. Absorption of Short Pumping Pulses for Grazing Incidence Pumped X-ray Lasers

    Article • January 2014, Royal Society of Chemistry

    Dr Daniel Ursescu

  63. Extreme Light Infrastructure – Nuclear Physics A New Research Infrastructure at the Interface of Laser and Subatomic Physics

    Article • The Review of Laser Engineering, January 2014, Laser Society of Japan

    Dr Daniel Ursescu

  64. Aluminum alloy nanosecond vs femtosecond laser marking

    Article • Bulletin of Materials Science, November 2013, Springer Science + Business Media

    Dr Daniel Ursescu

  65. Spectroscopic study of gold nanoparticle formation through high intensity laser irradiation of solution

    Article • AIP Advances, August 2013, American Institute of Physics

    Dr Daniel Ursescu

  66. Extreme light infrastructure nuclear physics (ELI-NP): present status and perspectives

    Article • May 2013, SPIE

    Dr Daniel Ursescu

  67. LASER DRIVEN SECONDARY SOURCES FOR SPECTROSCOPY, PLASMA DIAGNOSTICS AND OTHER APPLICATIONS

    Article • March 2013, World Scientific Pub Co Pte Lt

    Dr Daniel Ursescu

  68. Extreme Light Infrastructure – Nuclear Physics

    Article • Journal of Physics Conference Series, March 2013, Institute of Physics Publishing

    Dr Daniel Ursescu

  69. Pump energy reduction for a high gain Ag X-ray laser using one long and two short pump pulses

    Article • Optics Letters, December 2012, Optical Society of America (OSA)

    Dr Daniel Ursescu

  70. Titanium alloy nanosecond vs. femtosecond laser marking

    Article • Applied Surface Science, October 2012, Elsevier

    Dr Daniel Ursescu

  71. Terawatt laser system irradiation of carbon/tungsten bilayers

    Article • physica status solidi (a), September 2012, Wiley

    Dr Daniel Ursescu, Dr Cristiana-Eugenia-Ana Grigorescu

  72. Extreme Light Infrastructure: nuclear physics

    Article • May 2011, SPIE

    Dr Daniel Ursescu

  73. Spectral combination of ultrashort laser pulses

    Article • EPL (Europhysics Letters), May 2011, Institute of Physics Publishing

    Dr Daniel Ursescu

  74. Extreme light infrastructure: laser architecture and major challenges

    Article • April 2010, SPIE

    Dr Daniel Ursescu

  75. High Resolution, Real-Time Interferometer for Coherent Beam Combination

    Article • January 2010, American Institute of Physics

    Dr Daniel Ursescu

  76. Spatial and temporal dynamics of ultra-short pulses coherent beam combining

    Article • October 2009, SPIE

    Dr Daniel Ursescu

  77. X-ray laser developments at PHELIX

    Article • August 2009, SPIE

    Dr Daniel Ursescu

  78. An Improved Double-Pulse Non-Normal Incidence Pumping Geometry for Transient Collisionally Excited Soft X-Ray Lasers

    Article • January 2009, Springer Science + Business Media

    Dr Daniel Ursescu

  79. An improved double-pulse non-normal incidence pumping geometry for transient collisionally excited soft X-ray lasers

    Article • Optics Express, June 2008, Optical Society of America (OSA)

    Dr Daniel Ursescu

  80. EXTENDED CLUSTER MODEL FOR LIGHT AND MEDIUM NUCLEI

    Article • May 2008, World Scientific Pub Co Pte Lt

    Dr Daniel Ursescu

  81. Characterization of a transient collisional Ni-like molybdenum soft-x-ray laser pumped in grazing incidence

    Article • Physical Review A, March 2008, American Physical Society (APS)

    Dr Daniel Ursescu

  82. Electromagnetically confined plasma target for interaction studies with intense laser fields

    Article • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, August 2007, Elsevier

    Dr Daniel Ursescu

  83. Microscopic cluster model for exotic nuclei

    Article • Progress in Particle and Nuclear Physics, July 2007, Elsevier

    Dr Daniel Ursescu

  84. Ab initio calculation of two, three, and four body dynamics

    Article • Nuclear Physics A, June 2007, Elsevier

    Dr Daniel Ursescu

  85. Correlations in many electron systems: theory and applications

    Article • Canadian Journal of Physics, May 2007, Canadian Science Publishing

    Dr Daniel Ursescu

  86. Optimal main pulse angle for different preplasma conditions in transient collisionally pumped x-ray lasers

    Article • Physical Review E, April 2007, American Physical Society (APS)

    Dr Daniel Ursescu

  87. Optimization of the non-normal incidence, transient pumped plasma X-ray laser for laser spectroscopy and plasma diagnostics at the facility for antiproton and ion research (FAIR)

    Article • Laser and Particle Beams, February 2007, Cambridge University Press

    Dr Daniel Ursescu

  88. Correlation effects on the charge radii of exotic nuclei

    Article • January 2007, Springer Science + Business Media

    Dr Daniel Ursescu

  89. Quantitative study of 10 Hz operation of a soft x-ray laser—energy stability and target considerations

    Article • Optics Express, January 2007, Optical Society of America (OSA)

    Dr Daniel Ursescu

  90. Correlations in the Charge Radii of Complex Systems

    Article • January 2007, American Institute of Physics

    Dr Daniel Ursescu

  91. Optimization toward a high-average-brightness soft-x-ray laser pumped at grazing incidence

    Article • Optics Letters, December 2006, Optical Society of America (OSA)

    Dr Daniel Ursescu

  92. Laser XUV haute cadence pompé par laser Titane : Saphir, vers la station LASERIX

    Article • Le Journal de Physique Colloques, December 2006, EDP Sciences

    Dr Daniel Ursescu

  93. Errata

    Article • Progress of Theoretical Physics, November 2006, Oxford University Press (OUP)

    Dr Daniel Ursescu

  94. Many Electron Systems in a Relativistic Cluster Model

    Article • October 2006, Taylor & Francis

    Dr Daniel Ursescu

  95. Microscopic Cluster Theory for Exotic Nuclei

    Article • Journal of Physics Conference Series, October 2006, Institute of Physics Publishing

    Dr Daniel Ursescu

  96. Correlated EoM and Distributions for A = 6 Nuclei

    Article • Progress of Theoretical Physics, October 2006, Oxford University Press (OUP)

    Dr Daniel Ursescu

  97. Correlation effects on the charge radii of exotic nuclei

    Article • Hyperfine Interactions, July 2006, Springer Science + Business Media

    Dr Daniel Ursescu

  98. PHELIX – Status and First Experiments

    Article • Hyperfine Interactions, March 2006, Springer Science + Business Media

    Dr Daniel Ursescu

  99. Symbolic algorithms for the computation of Moshinsky brackets and nuclear matrix elements

    Article • Computer Physics Communications, December 2005, Elsevier

    Dr Daniel Ursescu

  100. Status of PHELIX laser and first experiments

    Article • Laser and Particle Beams, August 2005, Cambridge University Press

    Dr Daniel Ursescu

  101. New PW stretcher-compressor design for PHELIX laser

    Article • August 2005, SPIE

    Dr Daniel Ursescu

  102. Laser cladding of MMC coatings on aluminium substrate: influence of composition and microstructure on mechanical properties

    Article • Wear, June 2005, Elsevier

    Dr Daniel Ursescu

  103. MICROSCOPIC CORRELATIONS IN NUCLEAR STRUCTURE CALCULATIONS

    Article • March 2005, World Scientific Pub Co Pte Lt

    Dr Daniel Ursescu

  104. Charge radii of exotic nuclei: nuclear results versus isotopic shift calculations

    Article • Nuclear Physics A, December 2004, Elsevier

    Dr Daniel Ursescu

  105. Cluster transformation coefficients in many-body nuclear physics

    Article • Nuclear Physics A, June 2004, Elsevier

    Dr Daniel Ursescu

  106. Transient collisionally excited X-ray laser in nickel-like zirconium pumped with the PHELIX laser facility

    Article • Applied Physics B Photophysics and Laser Chemistry, May 2004, Springer Science + Business Media

    Dr Daniel Ursescu

  107. Near-field imaging of Ni-like silver transient collisional x-ray laser

    Article • December 2003, SPIE

    Dr Daniel Ursescu

  108. Cluster-transformation coefficients for structure and dynamics calculations inn-particle systems: atoms, nuclei and quarks

    Article • Journal of Optics B Quantum and Semiclassical Optics, June 2003, Institute of Physics Publishing

    Dr Daniel Ursescu

  109. Development and applications of X-ray lasers at LSAI/LIXAM

    Article • January 2002, American Institute of Physics

    Dr Daniel Ursescu

  110. Recent Progress on the Understanding of the Transient Ni-like Ag X-ray Laser at 13.9 nm at LULI facilities

    Article • January 2002, American Institute of Physics

    Dr Daniel Ursescu

  111. Focusing System for a Non-Normal Incidence Pumped, Sub-10 nm TCE XRL

    Article • Springer Science + Business Media

    Dr Daniel Ursescu

  112. Gain Generation in the Critical Density Region of a TCE XRL

    Article • Springer Science + Business Media

    Dr Daniel Ursescu

  113. A 10 Hz, 3 Microjoule Transient Soft X-Ray Laser Pumped in Grazing Incidence

    Article • Springer Science + Business Media

    Dr Daniel Ursescu

  114. X-Ray Imaging of the Heating Zone of Non-Normal Incidence Pumped XRL Plasma

    Article • Springer Science + Business Media

    Dr Daniel Ursescu

  115. A Non-Normal Incidence Pumped Ni-Like Zr XRL for Spectroscopy of Li-Like Heavy Ions at GSI/FAIR

    Article • Springer Science + Business Media

    Dr Daniel Ursescu

  116. PHELIX — Status and First Experiments

    Article • Springer Science + Business Media

    Dr Daniel Ursescu