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Autor:
Neil Ashcroft, Paul Hartman
Publikováno v:
Physics Today. 36:85-85
Autor:
T. Daly, Herbert Mahr
Publikováno v:
Solid State Communications. 25:323-326
We report the first observation of very precise time-resolved luminescence from highly photoexcited platelets of CdSe at 1.8 K. The time dependence of both spontaneous and stimulated emission are presented. The results are taken as a further indicati
Publikováno v:
Physical Review Letters. 42:175-178
We report the experimental observations of resonance charge transfer from a photoexcited donor state in sodium to excited acceptor states in protons and other rare-gas ions. This reaction is followed by rapid decay of the excited acceptor states with
Publikováno v:
Applied Physics Letters. 32:308-311
Lyman‐α radiation due to near‐resonant preferred charge transfer in the systems Cs‐H+ and Na‐H+ was observed for proton fluxes of up to 3×1021 cm−2 sec−1 and alkali densities of up to 1014 cm−3. These results with a plasma gun provide
Autor:
Herbert Mahr, Janet Jackel
Publikováno v:
Physical Review B. 17:3387-3400
Publikováno v:
Deutsche Zeitschrift für Philosophie. 23:1353-1363
Autor:
Dietmar Fröhlich, Herbert Mahr
Publikováno v:
Physical Review. 141:692-695
A strong population of excited F-center states is achieved in various alkali halides using a short intense pulse of a Q-switched Ruby laser. During the presence of the excited F-centers the time dependence of their decay is measured with a fast-recor
Autor:
Herbert Mahr
Publikováno v:
Physical Review. 122:1464-1468
Ultraviolet absorption spectrum of potassium chloride/potassium bromide single crystals and thin layers
Autor:
Herbert Mahr
Publikováno v:
Physical Review. 132:1880-1884
An empirical description of the shape of optical absorption bands due to localized excitons in ionic crystals is proposed. The new formula links a nearly Gaussian description of the band near its maximum with an exponential description of the band on