Zobrazeno 1 - 10
of 13
pro vyhledávání: '"R. L. Daskalova"'
Autor:
R. L. Daskalova, Enam Chowdhury, Abraham Handler, Kevin George, Ginevra Cochran, Joseph Snyder, Derek Nasir, Christopher Willis, Liangliang Ji, Baifei Shen, Trevor Rubin, Anthony Zingale, Douglass Schumacher, Patrick Poole
We present an experimental demonstration of the efficient acceleration of electrons beyond 60 MeV using micro-channel plasma targets. We employed a high-contrast, 2.5 J, 32 fs short pulse laser interacting with a 5 \mu m inner diameter, 300 \mu m lon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::040e23335b79d48b61f2c91a9c380e0b
http://arxiv.org/abs/1901.00475
http://arxiv.org/abs/1901.00475
Autor:
James Green, L. D. Van Woerkom, J. King, Andrew MacPhee, Peter Hakel, Sophia Chen, A. J. Mackinnon, R. Kodama, Alexander Robinson, Richard B. Stephens, Motoaki Nakatsutsumi, Hirotaka Nakamura, John Pasley, F. N. Beg, Tammy Ma, Hideaki Habara, Peter Norreys, Richard R. Freeman, K. Highbarger, M. H. Key, Kate Lancaster, R. L. Daskalova, Karl Krushelnick, Paul A. Jaanimagi
Understanding hydrodynamic phenomena driven by fast electron heating is important for a range of applications including fast electron collimation schemes for fast ignition and the production and study of hot, dense matter. In this work, detailed nume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcc7bd1397743ee056fdc9d8c97f9a13
https://ora.ox.ac.uk/objects/uuid:366e0148-5ea3-4d51-a45d-b2408158ce70
https://ora.ox.ac.uk/objects/uuid:366e0148-5ea3-4d51-a45d-b2408158ce70
Autor:
Carmen Constantin, David Riley, R. L. Daskalova, Gianluca Gregori, C.D.R. Brown, David Hoarty, R. Edwards, S. J. Rose, Drew Higginson, F. N. Beg, Steven James, Richard R. Freeman, J. W. Morton, B.R. Thomas, C. Niemann, L. D. Van Woerkom
We have performed measurements of the radiation and the hot electron temperature in sub-millimetre size hohlraums driven by a high intensity short-pulse laser. The results indicate that radiation temperatures ∼80 eV can be obtained with ∼20 J of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::685dcdc5720b5fa34f0631b908903537
https://doi.org/10.1016/j.hedp.2009.06.005
https://doi.org/10.1016/j.hedp.2009.06.005
Autor:
K. Highbarger, Paul A. Jaanimagi, Mingsheng Wei, J. A. King, R. L. Daskalova, R. J. Mason, Scott Wilks, L. D. Van Woerkom, Tammy Ma, M. H. Key, S. P. Hatchett, Kate Lancaster, A. J. Mackinnon, Andrew MacPhee, Peter Norreys, Richard B. Stephens, W. Theobald, P. K. Patel, James Green, Kramer Akli, F. N. Beg, Richard R. Freeman
Nail-wire targets (20 μm diameter copper wires with 80 μm hemispherical head) were used to investigate energy transport by relativistic fast electrons generated in intense laser-plasma interactions. The targets were irradiated using the 300 J, 1 ps
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f74cf908d675158e30dc18a5eca21bb
https://ora.ox.ac.uk/objects/uuid:659905b5-a405-4ac2-b051-b799e5049039
https://ora.ox.ac.uk/objects/uuid:659905b5-a405-4ac2-b051-b799e5049039
Autor:
Kramer Akli, Kevin George, Scott Feister, Sheng Jiang, D.W. Schumacher, Joseph Snyder, R. L. Daskalova, Enam Chowdhury, Christopher Willis, L. D. Van Woerkom, J. Marketon, Richard R. Freeman, Patrick Poole
Publikováno v:
Applied optics. 55(17)
We report on the recently completed 400 TW upgrade to the Scarlet laser at The Ohio State University. Scarlet is a Ti:sapphire-based ultrashort pulse system that delivers >10 J in 30 fs pulses to a 2 μm full width at half-maximum focal spot, resulti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d4a5fa40d323e1f767a22e2e9dbfd68
https://pubmed.ncbi.nlm.nih.gov/27409030
https://pubmed.ncbi.nlm.nih.gov/27409030
Autor:
Nathan S. Lewis, Douglass Schumacher, Andrew Krygier, Kramer Akli, Kevin George, Sheng Jiang, Joseph Snyder, Heather A. Audesirk, Liangliang Ji, Enam Chowdhury, Richard R. Freeman, Christopher Willis, Patrick Poole, R. L. Daskalova, Alexander Pukhov
Publikováno v:
Physical review letters. 116(8)
We report on the first successful proof-of-principle experiment to manipulate laser-matter interactions on the microscale using highly ordered Si microwire arrays. The interaction of a high contrast short pulse laser with a flat target via periodic S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95917edb15fdbeeefa67f503e9026da6
https://pubmed.ncbi.nlm.nih.gov/26967419
https://pubmed.ncbi.nlm.nih.gov/26967419
Autor:
R. L. Daskalova, R. Heery, Ginevra Cochran, Jordan Purcell, Douglass Schumacher, Christopher Willis, Patrick Poole
Publikováno v:
Journal of Instrumentation. 12:C04023-C04023
Practical application of laser based ion acceleration will require advances across a wide range of technologies extending from the laser system itself to the delivery of the ion beam. We have recently shown that the liquid crystal 8CB provides an eff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58f876298fd7b68f5f3d8fb987090f87
https://doi.org/10.1088/1748-0221/12/04/c04023
https://doi.org/10.1088/1748-0221/12/04/c04023
Autor:
Scott Feister, Kramer Akli, Kevin George, R. L. Daskalova, Douglass Schumacher, Enam Chowdhury, C. D. Andereck, Patrick Poole, Christopher Willis
We have developed a new type of target for intense laser-matter experiments that offers significant advantages over those currently in use. The targets consist of a liquid crystal film freely suspended within a metal frame. They can be formed rapidly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df4f127c25dd01740daca1fea1518b2c
Publikováno v:
Research in Optical Sciences.
Vacuum damage testing of novel pulse compression gratings and mirrors have been damage tested with a 30 fs 200 fs, 800 nm laser, and found that damage threshold increases weakly as pulse duration shortens.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1986026e18fc4cb4fe16d2e85ed6ccd
https://doi.org/10.1364/hilas.2012.hm2c.4
https://doi.org/10.1364/hilas.2012.hm2c.4
Autor:
Enam Chowdhury, Richard R. Freeman, Patrick Poole, Christopher Willis, R. L. Daskalova, Linn Van Woerkom
Publikováno v:
Frontiers in Optics 2011/Laser Science XXVII.
Damage fluence of several optics is studied in air and low vacuum using a 25 fs ultra-fast laser, including broadband dielectric mirrors and pulse-compression reflection gratings with gold and silver coating with varying processing conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba6e9fa8d4f3cc9e3c3158c276caae74
https://doi.org/10.1364/fio.2011.jwa26
https://doi.org/10.1364/fio.2011.jwa26