Dr. Joseph Nilsen Profile

Dr. Joseph Nilsen

Physicist at Lawrence Livermore National Lab

SPIE Involvement:

Author

Publications (42)

Proceedings Article | 8 July 2021 Open Access

X-ray lasers: the evolution from Star Wars to the table-top

Joseph Nilsen

Proceedings Volume 11886, 1188604 (2021) https://doi.org/10.1117/12.2593255

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Proceedings Article | 9 September 2019 Presentation + Paper

Enhanced fluorescence from x-ray line coincidence pumping of K-pumped Cl and Mg-pumped Ge plasmas

Joseph Nilsen, D. Burridge, L.M. Hobbs, D. Hoarty, P. Beiersdorfer, G. Brown, N. Hell, D. Panchenko, M. Gu, A. Saunders, H. Scott, R. London, P. Hatfield, M. Hill, L. Wilson, R. Charles, C. R. Brown, S. Rose

Proceedings Volume 11111, 1111105 (2019) https://doi.org/10.1117/12.2528884

KEYWORDS: Chlorine, Germanium, Magnesium, Luminescence, Plasmas, Potassium, X-ray lasers, X-ray fluorescence spectroscopy, X-rays, Neon

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Proceedings Article | 16 June 2017 Paper

Using the XFEL to drive gain in L-shell systems using photoionization processes

Joseph Nilsen

Proceedings Volume 10243, 102430C (2017) https://doi.org/10.1117/12.2264868

KEYWORDS: Neodymium, Liquid crystal lasers, Photons, Argon ion lasers, Xenon, X-ray lasers, X-ray sources, Free electron lasers, Neon, Tunable lasers, Argon, Copper, X-rays, Physics, Plasmas

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Proceedings Article | 22 September 2015 Paper

Using the XFEL to drive the gain of inner-shell x-ray lasers using photo-ionization and photo-excitation processes

Joseph Nilsen

Proceedings Volume 9589, 95890X (2015) https://doi.org/10.1117/12.2187068

KEYWORDS: Neon, X-ray lasers, Copper, Argon, Liquid crystal lasers, Photons, X-rays, Modeling, Autoregressive models, X-ray sources

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Proceedings Article | 27 September 2013 Paper

X-ray Thomson scattering for partially ionized plasmas including the effect of bound levels

Joseph Nilsen, Walter Johnson, K. T. Cheng

Proceedings Volume 8849, 884915 (2013) https://doi.org/10.1117/12.2022449

KEYWORDS: Thomson scattering, Scattering, X-rays, Plasmas, Solids, Laser scattering, Chromium, Plasmons, Aluminum, Ions

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Proceedings Article | 4 October 2011 Paper

Using the X-FEL to photo-pump x-ray laser transitions in He-like Ne

Joseph Nilsen, Nina Rohringer

Proceedings Volume 8140, 814003 (2011) https://doi.org/10.1117/12.893589

KEYWORDS: Neon, X-ray lasers, Liquid crystal lasers, Plasma, Solids, Free electron lasers, Tunable lasers, Ionization, Ions, Photons

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Proceedings Article | 29 September 2009 Paper

Using short pulse lasers to drive x-ray lasers

Joseph Nilsen

Proceedings Volume 7451, 74510N (2009) https://doi.org/10.1117/12.826989

KEYWORDS: Neon, X-ray lasers, Plasma, Iron, Liquid crystal lasers, Sodium, Ions, Tunable lasers, Photons, Pulsed laser operation

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Proceedings Article | 15 October 2007 Paper

Plasma interactions in laser irradiated semi-cylindrical cavities studied with soft x-ray interferometry using a capillary discharge laser

M. Purvis, J. Grava, J. Filevich, M. Marconi, J. Rocca, James Dunn, Stephen Moon, Joseph Nilsen, Vyacheslav Shlyaptsev, Elizabeth Jankowska

Proceedings Volume 6702, 670204 (2007) https://doi.org/10.1117/12.734876

KEYWORDS: Plasma, Picosecond phenomena, Particles, Interferometry, Carbon, X-ray lasers, Laser beam diagnostics, Ionization, Laser irradiation, Capillaries

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Proceedings Article | 12 October 2007 Paper

Searching for plasmas with anomalous dispersion in the soft x-ray regime

Joseph Nilsen, Walter Johnson, K. Cheng

Proceedings Volume 6702, 67020N (2007) https://doi.org/10.1117/12.732533

KEYWORDS: Plasmas, Refraction, X-ray lasers, Absorption, Interferometers, Xenon, Sodium, Neon, Chemical species, Ions

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Proceedings Article | 14 September 2005 Paper

Understanding the dramatic role of anomalous dispersion on the measurement of electron densities in plasmas using interferometers

Joseph Nilsen, Walter Johnson, Carlos Iglesias, James Scofield

Proceedings Volume 5919, 59190M (2005) https://doi.org/10.1117/12.613288

KEYWORDS: Plasmas, Refraction, Aluminum, Interferometers, X-ray lasers, Absorption, Chemical species, Ions, Dispersion, Palladium

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Proceedings Article | 14 September 2005 Paper

Soft x-ray laser interferometry of colliding plasmas

J. Grava, M. Purvis, J. Filevich, M. Marconi, J. Rocca, J. Dunn, S. Moon, R. Smith, J. Nilsen, V. Shlyaptsev

Proceedings Volume 5919, 59190I (2005) https://doi.org/10.1117/12.617052

KEYWORDS: Plasmas, X-ray lasers, Interferometers, Interferometry, Copper, Capillaries, Diffraction gratings, Beam splitters, Laser beam diagnostics, Mirrors

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Proceedings Article | 14 September 2005 Paper

Soft x-ray laser interferometry unveils plasmas with index of refraction greater than one

J. Filevich, J. Grava, M. Purvis, J. Rocca, M. Marconi, S. Moon, J. Nilsen, J. Scofield, J. Dunn, R. Smith, R. Keenan, J. Hunter, V. Shlyaptsev

Proceedings Volume 5919, 59190O (2005) https://doi.org/10.1117/12.617229

KEYWORDS: Plasmas, Refraction, Aluminum, Interferometry, X-ray lasers, Tin, Ions, Silver, X-rays, Copper

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Proceedings Article | 14 September 2005 Paper

Emission time of the Ni-like soft-x-ray lasers

J. Balmer, F. Staub, J. Nilsen

Proceedings Volume 5919, 59190A (2005) https://doi.org/10.1117/12.619224

KEYWORDS: X-ray lasers, Picosecond phenomena, Palladium, Tin, Calibration, X-rays, Streak cameras, Pulsed laser operation, Solids, Plasma

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