Absorption of Dy3+ and Nd3+ ions in BaR2F8 single crystalsстатья
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Дата последнего поиска статьи во внешних источниках: 19 ноября 2013 г.
Аннотация:The Dy3+ absorption and excitation spectra of BaY2F8 and BaYb2F8 single crystals are investigated in the ultraviolet, vacuum ultraviolet, and visible ranges at a temperature of 300 K. These crystals exhibit intense broad absorption bands due to the spin-allowed 4f-5d transitions in the range (56-78) x 10(-3) cm(-1) and less intense absorption bands that correspond to the spin-forbidden transitions in the range (50-56) x 10(-3) cm(-1). The Nd3+ absorption spectra of BaY2F8 single crystals are studied in the range (34-82) x 10(-3) cm(-1) at 300 K for different crystal orientations.