Zobrazeno 1 - 10
of 29
pro vyhledávání: '"C. A. Cromer"'
Autor:
L. Miaja-Avila, G. C. O'Neil, J. Uhlig, C. L. Cromer, M. L. Dowell, R. Jimenez, A. S. Hoover, K. L. Silverman, J. N. Ullom
Publikováno v:
Structural Dynamics, Vol 2, Iss 2, Pp 024301-024301-12 (2015)
We describe a laser-driven x-ray plasma source designed for ultrafast x-ray absorption spectroscopy. The source is comprised of a 1 kHz, 20 W, femtosecond pulsed infrared laser and a water target. We present the x-ray spectra as a function of laser e
Externí odkaz:
https://doaj.org/article/5df3470705264724bc8c00a215ca5958
Publikováno v:
Applied optics. 32(16)
The Systeme International base unit for photometry, the candela, has been realized by using absolute detectors rather than absolute sources. This change in method permits luminous intensity calibrations of standard lamps with an expanded uncertainty
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b7fd2aadbd0d3f2294b2e7c164ff3ad
https://pubmed.ncbi.nlm.nih.gov/20829899
https://pubmed.ncbi.nlm.nih.gov/20829899
Publikováno v:
Optics letters. 7(2)
When two levels can be strongly coupled by a pulsed laser, it is possible to measure the decay rate from the upper state by applying sufficient laser power to depletion broaden the transition. The depletion broadening is proportional to the square ro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66c81050947f3462cc2c949c743ae390
https://pubmed.ncbi.nlm.nih.gov/19710826
https://pubmed.ncbi.nlm.nih.gov/19710826
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 24:5063-5069
The absorption spectra of atomic W and Pt have been recorded by the dual laser plasma technique in the range of the 4f and 5p excitations. Broad, strong and asymmetric 5p to 5d resonances dominate the spectra. The Pt 4f to 5d transitions give rise to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8618e2bc20c1c698e57321efb41d3f3
https://doi.org/10.1088/0953-4075/24/24/005
https://doi.org/10.1088/0953-4075/24/24/005
Publikováno v:
Physical review letters. 65(20)
We have measured the wave number of the {sup 4}He 2{sup 1}{ital S}-3{sup 1}{ital P} transition by Doppler-free spectroscopy in a metastable helium beam. The result, 19 931.924 794(45) cm{sup {minus}1}, represents an order-of-magnitude improvement ove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::001b830aa9d2dee3cd404928b712bd25
https://pubmed.ncbi.nlm.nih.gov/10042623
https://pubmed.ncbi.nlm.nih.gov/10042623
Publikováno v:
Metrologia. 36:161-161
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84fa32874c8f554982c36032280aef3a
https://doi.org/10.1088/0026-1394/36/2/14
https://doi.org/10.1088/0026-1394/36/2/14
Autor:
Charles W. Clark, C. R. Cromer, E. T. Kennedy, Thomas B. Lucatorto, B. F. Sonntag, J. Cooper, John Costello
Publikováno v:
Physical Review A. 39:6074-6077
Chromium is the only member of the transition-group elements with a well developed Rydberg structure appearing in its 3p-absorption spectrum. New high-resolution measurements of Mn, ${\mathrm{Mn}}^{+}$, and Cr have revealed weak Rydberg structure in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb374761fa23fe532060ae0c2a59b3bb
https://doi.org/10.1103/physreva.39.6074
https://doi.org/10.1103/physreva.39.6074
Publikováno v:
Physical Review A. 24:161-165
The $5d7d^{1}D_{2}$ state of barium is configuration mixed with the 6snd Rydberg series. This work examines the larger-$r$ behavior of the Rydberg character of the mixed-state wave function by projecting it experimentally onto a series of known Rydbe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96e5468d0ed096784d7eee29930877b9
https://doi.org/10.1103/physreva.24.161
https://doi.org/10.1103/physreva.24.161
Autor:
C. L. Cromer, William E. Cooke
Publikováno v:
Physical Review A. 32:2725-2738
A derivation and geometrical interpretation of multichannel quantum-defect theory (MQDT) is presented. An alternative set of MQDT parameters is suggested which separates into two independent groups, one representing the quantum defect of a Rydberg se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc92970fa805c13b3c959bd86595557a
https://doi.org/10.1103/physreva.32.2725
https://doi.org/10.1103/physreva.32.2725
Autor:
C W Clark, C L Cromer
Publikováno v:
Journal of Physics B: Atomic and Molecular Physics. 18:L497-L500
The authors propose a candidate mechanism for the lambda =564.6 nm resonance in multiphoton ionisation of calcium observed by Agostini and Petite (1984).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::029f4e948e265f95031067a7f9a47d9b
https://doi.org/10.1088/0022-3700/18/15/004
https://doi.org/10.1088/0022-3700/18/15/004