1965
DOI: 10.1007/bf00658077
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Vacuum ultraviolet absorption of lithium fluoride crystals grown by zone melting

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Cited by 3 publications
(5 citation statements)
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“…The results from ε 2 (ω) also indicated that the optical absorption edge from the O-doped LiF crystal was also close to the pure LiF crystal. Moreover, the abundance of optical data from the O-doped LiF crystal suggests that doping can't influence band gap obviously [33,34]. So, in our calculation, we have used the energy scissors approximation with 5.5 eV to fit the calculated absorption edge for the experimental value.…”
Section: Resultsmentioning
confidence: 99%
“…The results from ε 2 (ω) also indicated that the optical absorption edge from the O-doped LiF crystal was also close to the pure LiF crystal. Moreover, the abundance of optical data from the O-doped LiF crystal suggests that doping can't influence band gap obviously [33,34]. So, in our calculation, we have used the energy scissors approximation with 5.5 eV to fit the calculated absorption edge for the experimental value.…”
Section: Resultsmentioning
confidence: 99%
“…В соответствии с отмеченными выше требованиями для применения в качестве СУОЗ ВУФ диапазона, используя данные литературы [16][17][18][19][20], были отобраны такие фторидные Nd-активированные кристаллы, у которых верхняя граница окна прозрачности лежит в области 120−150 nm и которые обладают простой кубической структурой. Последнее исключает проблемы как непосредственно при проведении исследований, так и при возможном их практическом применении, связанные с поляризационными эффектами, возникающими с кристаллами, обладающими оптической осью.…”
Section: принцип действия суоз критерии отбора объектов исследованийunclassified
“…Еще одним критерием при выборе объектов для СУОЗ была низкая начальная интенсивность полос поглощения ионов Nd 3+ в спектральной области от 180 до 220 nm. Этот выбор осуществлялся по спектроскопическим данным из серии работ [2][3][4][5][6][16][17][18][19][20]. Как видно из рисунка, в спектрах при воздействии излучения накачки c оценочной плотностью 3−5 kW/cm 2 для всех образцов наблюдалось существенное приращение поглощения.…”
Section: принцип действия суоз критерии отбора объектов исследованийunclassified
“…In correspondence with the aforementioned requirements for the application in VUV LCOGs, we chose (using the data in the literature [16][17][18][19][20]) the fluoride Nd-activated crystals that are characterized by the upper boundary of the transparency window lying in the range of 120-150 nm and have a simple cubic structure. The latter excludes the problems (which may occur both during investigations and in possible practical applications) related to polarization effects arising in crystals with an optical axis.…”
Section: Principle Of Operation Of Lcogs Criteria Of Selection Of Objects Of Studymentioning
confidence: 99%
“…Another criterion for choosing objects for LCOGs is a low initial intensity of the absorption bands of Nd 3+ ions in the spectral range from 180 to 220 nm. This selection was performed based on spectroscopic data from the series of studies [2][3][4][5][6][16][17][18][19][20].…”
Section: Principle Of Operation Of Lcogs Criteria Of Selection Of Objects Of Studymentioning
confidence: 99%