Zobrazeno 1 - 10
of 58
pro vyhledávání: '"T. Afshar-Rad"'
Publikováno v:
Scopus-Elsevier
An experimental study of stimulated Brillouin backscatter (B-SBS), produced in a large “homogeneous” underdense plasma using induced spatially incoherent laser light, is presented. The observations reveal that a strong correlation exists between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10139a9c2e05f5e5a325221db23c1226
https://doi.org/10.1103/physrevlett.75.4413
https://doi.org/10.1103/physrevlett.75.4413
Autor:
Valerio Biancalana, O. Willi, P. Chessa, Antonio Giulietti, D. Giulietti, E. Schifano, S.M. Viana, Leonida A. Gizzi, Colin N. Danson, T. Afshar-Rad
Publikováno v:
Physical Review E. 49:5628-5643
Long scale length plasmas were produced by uniform laser irradiation from opposite sides of metal disks coated on thin plastic stripe targets. The plasma became fully underdense before the end of the 600-ps pulse. The evolution of the plasma was care
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::915a31903e0ccaf68a403a5685e4c1c0
https://doi.org/10.1103/physreve.49.5628
https://doi.org/10.1103/physreve.49.5628
Publikováno v:
Applied optics. 30(17)
A novel and simple XUV imaging technique using a laser-produced plasma source is described. A spatial resolution of better than 0.8 mum is demonstrated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::440d6b26b3b0fc64b118d788d84724bf
https://pubmed.ncbi.nlm.nih.gov/20700206
https://pubmed.ncbi.nlm.nih.gov/20700206
Autor:
J. Edwards, M. Desselberger, Robert A. Taylor, Mike Dunne, F. Khattak, T. Afshar-rad, O. Willi
Publikováno v:
Review of Scientific Instruments. 63:4818-4822
Recent progress in multilayered mirror technology has allowed the developments of novel imaging systems for probing of high density plasmas in the soft x‐ray regime. The experimental system described here basically consists of a spherical multilaye
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fb6023155bd29d8c7e9df25dafa989d
https://doi.org/10.1063/1.1143572
https://doi.org/10.1063/1.1143572
Publikováno v:
Physics of Fluids B: Plasma Physics. 4:1301-1322
A time‐resolved study is presented of stimulated Raman backscatter (B‐SRS) produced in a large‐scale‐length preformed plasma in an intense laser pulse. The first direct experimental results are presented to (i) show that the B‐SRS is genera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79b19b389b74b95b0cf304e12ccb35a8
https://doi.org/10.1063/1.860086
https://doi.org/10.1063/1.860086
Publikováno v:
Physical Review Letters. 68:942-945
The propagation of an intense electromagnetic pulse in a large underdense plasma has been investigated using spatially and temporally incoherent laser light. Spatial incoherence was obtained using the induced spatial incoherence (ISI) technique. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e89e638018bf885ddecfdae84d89291
https://doi.org/10.1103/physrevlett.68.942
https://doi.org/10.1103/physrevlett.68.942
Publikováno v:
Europhysics Letters (EPL). 15:745-751
Self-phase modulation (SPM) in filamentary plasma can explain anomalous large frequency shifts in time-resolved spectra of laser light backscattered from laser plasmas. We have modelled the effect of SPM by assuming a rapid variation in the plasma el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a1c591f066fbc9971c8cf06b1f214d2
https://doi.org/10.1209/0295-5075/15/7/009
https://doi.org/10.1209/0295-5075/15/7/009
Publikováno v:
Optics Communications. 81:47-53
Optical probing measurements have been made of the uniformity of large underdense plasmas generated by the irradiation of thin foil stripe targets. The generation of such plasmas is of importance of both X-ray laser experiments and laser plasma inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::908271665f3478490bb5cff650dac5a1
https://doi.org/10.1016/0030-4018(91)90292-l
https://doi.org/10.1016/0030-4018(91)90292-l
Publikováno v:
Europhysics Letters (EPL). 13:251-256
The interaction of a high-power laser beam with a large underdense plasma has been studied. Spatially and temporally resolved measurements made of the interaction beam after propagating through the preformed plasma have provided the first clear exper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19adb50f851eabdad41f8186f14ddfa0
https://doi.org/10.1209/0295-5075/13/3/010
https://doi.org/10.1209/0295-5075/13/3/010
Study of instabilities in long scale‐length plasmas with and without laser‐beam‐smoothing techniques
Publikováno v:
Physics of Fluids B: Plasma Physics. 2:1318-1324
Experimental results are presented for the interaction of an intense laser beam in large preformed, homogeneous underdense plasmas. Parametric instabilities, including filamentation, stimulated Raman (SRS) and stimulated Brillouin scattering (SBS), h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ba746111e0cf77cdd6a13d3eac31d3d
https://doi.org/10.1063/1.859549
https://doi.org/10.1063/1.859549