Zobrazeno 1 - 10
of 16
pro vyhledávání: '"L. J. Radziemski"'
Publikováno v:
Applied optics. 27(12)
Plasma spectra initiated on single, optically levitated, micron-sized droplets of a glycerine-saturated brine solution are presented. The temporal development of the droplet plasma is monitored by observing neutral and once-ionized carbon and neutral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e9a579d70dab8a3a8a107ca079e4a7e
https://pubmed.ncbi.nlm.nih.gov/20531769
https://pubmed.ncbi.nlm.nih.gov/20531769
Publikováno v:
Energy & Fuels. 5:304-312
Laser spark emission spectroscopy is used to characterize individual coal particles in flowing environments. A high-energy, pulsed Nd:YAG laser is employed to rapidly heat particles forming an ionized plasma. After a delay of 1μs, most of the atomic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17135834d2db12e202ac8d02628b17a2
https://doi.org/10.1021/ef00026a014
https://doi.org/10.1021/ef00026a014
Publikováno v:
Journal of Applied Physics. 68:3809-3813
Time‐dependent intensities of the spectral lines emitted by laser‐induced plasmas generated in several gases are presented. The time‐resolved and spatially varying intensities of two once‐ionized nitrogen lines were used to calculate radial t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ff6412911b49f78323b599045567f3f
https://doi.org/10.1063/1.346285
https://doi.org/10.1063/1.346285
Publikováno v:
Fourier Transform Spectroscopy New Methods and Applications.
The spectrum of neutral lithium remains of considerable interest to both theorists and experimentalists. There have been attempts to calculate from first principles the energy levels, hyperfine parameters and isotope shifts (see for example Ref. 1);
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa4a0ce2b3cb9679dad267203b41d2b6
https://doi.org/10.1364/fts.1995.ffd3
https://doi.org/10.1364/fts.1995.ffd3
Publikováno v:
Journal of the Optical Society of America B. 11:1897
New uranium hollow-cathode Fourier-transform spectra have been recorded between 1800 and 42 000 cm−1. Combined with earlier visible and ultraviolet spectra, these have led to 354 odd levels and 809 even levels of singly ionized uranium (U ii) belon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e37ec903ce534ace5963f4566024c8c2
https://doi.org/10.1364/josab.11.001897
https://doi.org/10.1364/josab.11.001897
Publikováno v:
Applied Spectroscopy. 43:967-976
Several laser-based techniques are being developed to provide in situ determinations of size, velocity, and elemental composition for individual particulates in combustion environments. Emphasis is placed on composition measurements using laser spark
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8998aece5c9fa8e62814e5d169632df9
https://doi.org/10.1366/0003702894203778
https://doi.org/10.1366/0003702894203778
Publikováno v:
Journal of Applied Physics. 65:2946-2950
The blast wave theory coupled with ionization described by the Saha equations and the charge conservation equation, are used to calculate the time‐dependent, spatial distribution of the number densities of the different species of a plasma formed o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf2ff520f8c639c78d7f425db9e6c1d2
https://doi.org/10.1063/1.342741
https://doi.org/10.1063/1.342741
Autor:
Earl F. Worden, S. A. Johnson, J. A. Paisner, C.A. May, Richard W. Solarz, L.R. Carlson, L. J. Radziemski
Publikováno v:
Physical Review A. 14:1129-1136
We report the first observation of perturbed and unperturbed Rydberg progressions of atomic uranium. Highlying levels within 1000 ${\mathrm{cm}}^{\ensuremath{-}1}$ of the ionization limit were accessed by time-resolved stepwise excitation using dye l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46262d92ed8593d09a45631e78043f43
https://doi.org/10.1103/physreva.14.1129
https://doi.org/10.1103/physreva.14.1129
Autor:
L. J. Radziemski, T. R. Loree
Publikováno v:
Plasma Chemistry and Plasma Processing. 1:281-293
We have added time resolution to laser-induced breakdown spectroscopy in two forms, by gating an optical multichannel analyzer (OMA) and by time-resolving the output of a photomultiplier with a boxcar amplifier. Spectra were obtained for temporal seg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12db82eece237ce4eccabdcc553cfa2a
https://doi.org/10.1007/bf00568836
https://doi.org/10.1007/bf00568836
Autor:
L. J. Radziemski, T. R. Loree
Publikováno v:
Plasma Chemistry and Plasma Processing. 1:271-279
Spectral analysis of the plasma produced by laser-induced breakdown was demonstrated to be an effective real-time technique for the detection of atomic constituents in gases and gas-entrained particulates. The time-integrated technique, LIBS (laser-i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fb1df5be4f0b2994da5ea174686567c
https://doi.org/10.1007/bf00568835
https://doi.org/10.1007/bf00568835