Zobrazeno 1 - 10
of 290
pro vyhledávání: '"WELLS, JON"'
Publikováno v:
Optical Materials 142, 114093 (2023)
Lanthanide-doped Y$_{2}$SiO$_{5}$ microcrystals were prepared using the solution combustion, solid state and sol-gel synthesis techniques. Of these, the sol-gel method yields the most reliable and high-quality X2 phase Y$_{2}$SiO$_{5}$ microcrystals.
Externí odkaz:
http://arxiv.org/abs/2409.16580
Publikováno v:
Optical Materials: X 24 , 100356 (2024)
K$_2$YF$_5$ crystals doped with lanthanide ions have a variety of possible optical applications. Owing to the low symmetry of the system, the crystal structure cannot be unambiguously determined by x-ray diffraction. However, electron-paramagnetic re
Externí odkaz:
http://arxiv.org/abs/2409.15630
Autor:
Mothkuri, Sagar, Reid, Michael F., Wells, Jon-Paul R., Lafitte-Houssat, Eloïse, Ferrier, Alban, Goldner, Philippe
Publikováno v:
Journal of Luminescence 275, 120705 (2024)
Laser site-selective spectroscopy and high-resolution absorption measurements have been used to determine 51 crystal-field energy levels for one of the Ho$^{3+}$ centres in Y$_{2}$SiO$_{5}$. This centre is denoted as Site 2 and has been tentatively a
Externí odkaz:
http://arxiv.org/abs/2409.15625
Publikováno v:
Optics and Spectroscopy, 130:28 (2022)
We report Zeeman infra-red spectroscopy of electronic-nuclear levels of $^5$I$_8 \rightarrow ^5$I$_7$ transitions of Ho$^{3+}$ in the C$_{\rm 4v}$(F$^-$) centre in CaF$_2$ with the magnetic field along the $\langle 111\rangle$ direction of the crysta
Externí odkaz:
http://arxiv.org/abs/2206.09047
Publikováno v:
In Optics and Laser Technology April 2024 171
Autor:
Mothkuri, Sagar, Reid, Michael F., Wells, Jon-Paul R., Lafitte-Houssat, Eloïse, Goldner, Philippe, Ferrier, Alban
Publikováno v:
Phys. Rev. B 103, 104109 (2021)
High-resolution Zeeman spectroscopy of electronic-nuclear hyperfine levels of ${^5\mathrm{I}_8}\rightarrow{^5\mathrm{I}_7}$ transitions in Ho$^{3+}$:Y$_2$SiO$_5$ is reported. Crystal-field parameters determined for the two $C_1$ symmetry sites in Er$
Externí odkaz:
http://arxiv.org/abs/2103.09343
Publikováno v:
In Optical Materials August 2023 142
We report studies of the Yb$^{3+}$ site distribution in Er$^{3+}$ co-doped upconverting alkaline earth fluoride nanoparticles using high-resolution absorption measurements. Similar to bulk crystals, Yb$^{3+}$ single ion cubic (O$_h$), and preferentia
Externí odkaz:
http://arxiv.org/abs/1909.02645
Publikováno v:
In Journal of Alloys and Compounds 15 March 2023 937