Zobrazeno 1 - 10
of 33
pro vyhledávání: '"B. DiBartolo"'
Publikováno v:
Journal of Lightwave Technology. 31:1495-1502
A novel multifunctional optical device, combining optical filtering, amplification, attenuation and switching functions in one unit, was designed and demonstrated in covering both C- and L-bands, by taking advantage of excellent electrooptic (EO) pro
Autor:
B DiBartolo, Gönül Özen
Publikováno v:
Journal of Physics: Condensed Matter. 13:195-202
Absorption and luminescence measurements on Tm3+ and Ho3+ ions in LiYF4:Tm3+, LiYF4:Ho3+, and LiYF4:Tm3+, Ho3+ crystals were carried out. The data collected were used to determine the Ho3+ absorption coefficient integral for 5I8→{5I7} transition, a
Autor:
G. Özen, B. DiBartolo
Publikováno v:
Applied Physics B: Lasers and Optics. 70:189-193
Energy transfer processes are very important in solid-state laser systems because they can cause an enhancement of the luminescence emission resulting in a reduction of the laser threshold. In this work, a detailed investigation to understand the bas
Autor:
B. Dibartolo, G. Özen
Publikováno v:
Applied Spectroscopy. 53:1454-1458
Photoluminescence, excitation, and response to pulsed excitation measurements show the existence of the Cr3+ -to-Nd3+ energy transfer in lanthanum lutetium gallium garnet with an efficiency η = 0.59 at room temperature. The transfer occurs radiative
Publikováno v:
Journal of Luminescence. :471-475
Green and red luminescence in Er-doped YSGG, excited in the infrared or blue, is investigated at two different Er concentrations, 1% and 30%. It is found that the green and red up-conversion luminescence under the infrared excitation in 30%Er : YSGG
Autor:
J. M. Collins, B. Dibartolo
Publikováno v:
physica status solidi (b). 189:441-454
The energy transfer from the 6P7/2 level of Gd3+ to the 2P3/2 level of Er3+ is studied in the phosphor Y0.34Gd0.65Er0.01F3. The lifetime of the 6P7/2 level of Gd3+ decreases substantially in the presence of Er, indicating that the transfer is nonradi
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 83(1)
TeO(2)-CdF(2)-WO(3) glasses with various compositions and Er(3+) concentrations were prepared by conventional melting method. Their optical properties were studied by measuring the absorption, luminescence spectra and the decay patterns at room tempe
Up-conversion luminescence of Er3+-doped yttrium, scandium, gallium garnet at different temperatures
Publikováno v:
Journal of Luminescence. :168-170
The up-conversion luminescence in the visible region (400–700 nm) from (30% Er 3+ -doped YSGG laser crystal was investigated in the temperature range of 77–300 K, when the crystal was pumped by a diode laser at ~ 790 nm. The spectra were compared
Publikováno v:
Advanced Solid State Lasers.
The energy transfer processes in Tm,Ho:YAG lasers were investigated in spectral studies and measurements of the temporal response to pulsed excitation. These processes include the population of the 3H4 pump band of Tm, cross-relaxation in Tm, the tra
Publikováno v:
Journal of Luminescence. 28:27-39
The impurity-induced luminescence of RbMnF 3 has been studied in the temperature range, 4–120 K. Multimagnon sidebands of impurity-induced Mn 2+ emission lines have been detected spanning the spectral range, 5515–5960 A. The broad emission bands,