Emission spectra of photoionized plasmas induced by intense EUV pulses: Experimental and theoretical investigations

2017 ◽  
Author(s):  
Ismail Saber ◽  
Andrzej Bartnik ◽  
Wojciech Skrzeczanowski ◽  
Przemysław Wachulak ◽  
Roman Jarocki ◽  
...  
Keyword(s):  
Emission Spectra ◽  
Theoretical Investigations ◽  
Photoionized Plasmas

scholarly journals Low temperature photoionized Ne plasmas induced by laser-plasma EUV sources

2015 ◽  
Vol 33 (2) ◽  
pp. 193-200 ◽  
Author(s):  
A. Bartnik ◽  
H. Fiedorowicz ◽  
T. Fok ◽  
R. Jarocki ◽  
M. Szczurek ◽  
...  
Keyword(s):  
Spectral Range ◽  
Extreme Ultraviolet ◽  
Emission Spectra ◽  
Spectral Lines ◽  
Wide Spectral Range ◽  
Spectral Maximum ◽  
Radiation Beam ◽  
Photoionized Plasmas ◽  
Singly Charged ◽  
Charged Ions

AbstractIn this work, two laser-produced plasma (LPP) sources – extreme ultraviolet (EUV) and a LPP soft X-ray (SXR) source were used to create Ne photoionized plasmas. A radiation beam was focused onto a gas stream, injected into a vacuum chamber synchronously with the radiation pulse. EUV radiation spanned a wide spectral range with pronounced maximum centered at λ≈11 nm, while in case of the SXR source spectral maximum was at λ≈1.4 nm. Emission spectra of photoionized plasmas created this way were measured in a wide spectral range λ = 10–100 nm. The dominating spectral lines originated from singly charged ions (Ne II) and neutral atoms (Ne I). For the highest radiation fluence, spectral lines originating from Ne III and even Ne IV species were detected. Differences between the experimental spectra, obtained for all irradiation conditions, were analyzed. They were attributed either to different fluence or spectral distribution of driving photons.

Nano-probe x-ray analysis and high-resolution imaging on planar defects in high-pressure synthesized infinite-layer superconductor

1994 ◽  
Vol 52 ◽  
pp. 728-729
Author(s):  
Y. Y. Wang ◽  
H. Zhang ◽  
V. P. Dravid ◽  
H. Zhang ◽  
L. D. Marks ◽  
...  
Keyword(s):  
High Pressure ◽  
High Resolution ◽  
Atomic Structure ◽  
Emission Spectra ◽  
High Resolution Electron Microscopy ◽  
Planar Defects ◽  
X Ray ◽  
Infinite Layer ◽  
Resolution Electron ◽  
Resolution Imaging

Azuma et al. observed planar defects in a high pressure synthesized infinitelayer compound (i.e. ACuO2 (A=cation)), which exhibits superconductivity at ~110 K. It was proposed that the defects are cation deficient and that the superconductivity in this material is related to the planar defects. In this report, we present quantitative analysis of the planar defects utilizing nanometer probe xray microanalysis, high resolution electron microscopy, and image simulation to determine the chemical composition and atomic structure of the planar defects. We propose an atomic structure model for the planar defects.Infinite-layer samples with the nominal chemical formula, (Sr1-xCax)yCuO2 (x=0.3; y=0.9,1.0,1.1), were prepared using solid state synthesized low pressure forms of (Sr1-xCax)CuO2 with additions of CuO or (Sr1-xCax)2CuO3, followed by a high pressure treatment.Quantitative x-ray microanalysis, with a 1 nm probe, was performed using a cold field emission gun TEM (Hitachi HF-2000) equipped with an Oxford Pentafet thin-window x-ray detector. The probe was positioned on the planar defects, which has a 0.74 nm width, and x-ray emission spectra from the defects were compared with those obtained from vicinity regions.

Self-Consistent Field Calculations of X-Ray Emission Spectra of Surface Adsorbates and Polymers

1997 ◽  
Vol 7 (C2) ◽  
pp. C2-515-C2-516
Author(s):  
H. Agren ◽  
L. G.M. Pettersson ◽  
V. Carravetta ◽  
Y. Luo ◽  
L. Yang ◽  
...  
Keyword(s):  
Emission Spectra ◽  
X Ray ◽  
Consistent Field ◽  
Self Consistent ◽  
Surface Adsorbates ◽  
Self Consistent Field

Experimental and theoretical investigations concerning the magnetooptic effects in special D-type fibres

2005 ◽  
Vol 129 ◽  
pp. 85-90 ◽  
Author(s):  
K. Barczak ◽  
T. Pustelny ◽  
A. Szpakowski ◽  
M. Błahut
Keyword(s):  
Theoretical Investigations

High resolution emission spectra of H2 and D2 near 80 nm

1980 ◽  
Vol 41 (12) ◽  
pp. 1431-1436 ◽  
Author(s):  
M. Larzillière ◽  
F. Launay ◽  
J.-Y. Roncin
Keyword(s):  
High Resolution ◽  
Emission Spectra

125Te MÖSSBAUER EMISSION SPECTRA OF TELLURIUM THIOUREA COMPLEXES

1979 ◽  
Vol 40 (C2) ◽  
pp. C2-417-C2-419
Author(s):  
C. H.W. Jones ◽  
M. Dombsky
Keyword(s):  
Emission Spectra

MÖSSBAUER EMISSION SPECTRA FROM57Co IN SIMPLE IONIC HALIDE CRYSTALS

1974 ◽  
Vol 35 (C6) ◽  
pp. C6-324-C6-324
Author(s):  
A. G. MADDOCK ◽  
A. F. WILLIAMS ◽  
J. FENGER ◽  
K. E. SIERKIERSKA
Keyword(s):  
Emission Spectra

EXPERIMENTAL AND THEORETICAL SOFT X-RAY EMISSION SPECTRA OF Cu-Pd SUBSTITUTIONAL ALLOYS

1987 ◽  
Vol 48 (C9) ◽  
pp. C9-1059-C9-1062
Author(s):  
P. J. DURHAM ◽  
C. F. HAGUE ◽  
J.-M. MARIOT ◽  
W. M. TEMMERMAN
Keyword(s):  
Emission Spectra ◽  
X Ray ◽  
Substitutional Alloys
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