The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Individual low temperature (77K) fluorescence spectra of tetragonal (C4v), clustered, and long-lifetime optical centers of Tm3+ ions at the 3F4–3H6 transition are recorded and the lifetimes of these centers are measured. Analysis of the number and positions of the fluorescence lines of the long-lifetime optical center allows to suggest that it has tetragonal (C4v) local symmetry.
Fluoride crystals and ceramics doped with Tm3+ ions were developed and spectroscopic and laser properties in 2 µm spectral region were investigated. Slope efficiency about 20% was demonstrated in 2 µm spectral region under 790 nm laser diode pumping.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.