%0 Journal Article %1 rodriguesherzog2000optical %A Rodrigues-Herzog, Rosana %A Trotta, F. %A Bill, Hans %A Segura, Jean-Manuel %A Hecht, Bert %A Güntherodt, Hans-Joachim %D 2000 %J Phys. Rev. B %K AFM experiment nano-optics wavelength-spectra %N 16 %P 11163-11169 %R 10.1103/PhysRevB.62.11163 %T Optical microscopy of single ions and morphological inhomogeneities in Sm-doped CaF2 thin films %V 62 %X We have investigated the luminescence of CaF2 thin films doped with very low concentrations of Sm2+ ions using scanning confocal optical microscopy at low temperatures. The film morphology was studied independently by atomic force microscopy. The Sm2+ ions are homogeneously distributed in the films and show photobleaching. Unexpectedly, on the film surface strongly luminescent small topographic features are observed that are found to contain Sm3+ by spectral analysis. The formation of Sm3+ is probably due to the presence of oxygen during film growth. In the lowest doped films on-off blinking behavior of isolated luminescent spots provides strong evidence for the first observation of single ions in a crystal.

@article{rodriguesherzog2000optical, abstract = {We have investigated the luminescence of CaF2 thin films doped with very low concentrations of Sm2+ ions using scanning confocal optical microscopy at low temperatures. The film morphology was studied independently by atomic force microscopy. The Sm2+ ions are homogeneously distributed in the films and show photobleaching. Unexpectedly, on the film surface strongly luminescent small topographic features are observed that are found to contain Sm3+ by spectral analysis. The formation of Sm3+ is probably due to the presence of oxygen during film growth. In the lowest doped films on-off blinking behavior of isolated luminescent spots provides strong evidence for the first observation of single ions in a crystal.}, added-at = {2020-02-17T10:23:14.000+0100}, author = {Rodrigues-Herzog, Rosana and Trotta, F. and Bill, Hans and Segura, Jean-Manuel and Hecht, Bert and Güntherodt, Hans-Joachim}, biburl = {https://www.bibsonomy.org/bibtex/2333069c6612df75e174a2df3af2001f9/ep5optics}, day = 15, doi = {10.1103/PhysRevB.62.11163}, file = {APS Snapshot:C\:\\Users\\scherzad\\Zotero\\storage\\6F9HXPVL\\PhysRevB.62.html:text/html;Rodrigues-Herzog et al. - 2000 - Optical microscopy of single ions and morphologica.pdf:C\:\\Users\\scherzad\\Zotero\\storage\\TFTLDAGZ\\Rodrigues-Herzog et al. - 2000 - Optical microscopy of single ions and morphologica.pdf:application/pdf}, interhash = {86df64d4de43fe71a946c083887174d1}, intrahash = {333069c6612df75e174a2df3af2001f9}, journal = {Phys. Rev. B}, keywords = {AFM experiment nano-optics wavelength-spectra}, month = {10}, number = 16, pages = {11163-11169}, timestamp = {2020-02-17T10:24:01.000+0100}, title = {Optical microscopy of single ions and morphological inhomogeneities in Sm-doped CaF2 thin films}, urldate = {2020-02-17}, volume = 62, year = 2000 }