Pulsed laser deposition of Er3+-doped oxyfluoride thin films

Martino, M.; Caricato, Anna Paola; Fazzi, A.; Romano, Francesco; Tikhomirov, V. K.; Seddon, Angela B.; Mattarelli, Maurizio; Chiappini, Andrea; Vishnubhatla, Krishna Chaitanya

doi:10.1016/j.jnoncrysol.2005.04.021

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…for display applications. Pulsed laser deposition of precursor glass film has been reported in [15]; however, this method is complex, expensive and hardly can be used for production of large amounts and large surface area NGC layers and films. Therefore, an alternative and technically simpler sol-gel method has been explored in this work, which can be further used for preparation of large surface area layers and films of NGC.…”

Section: Introductionmentioning

confidence: 99%

Sol–gel preparation and white up-conversion luminescence in rare-earth doped PbF2 nanocrystals dissolved in silica glass

del-Castillo

Yanes

Méndez‐Ramos

et al. 2009

J Sol-Gel Sci Technol

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89.5(SiO 2)10(PbF 2)0.5(REF 3) silicate glasses have been prepared using room temperature sol-gel processing of Si(OCH 2 CH 3) 4 , Pb(CH 3 COO) 2 Á3H 2 O, RE(CH 3 COO) 3 Á nH 2 O and trifluoroacetic acid as a fluorinating agent, where RE stands for rare-earth ions, such as Yb 3? , Er 3? , Ho 3? , Tm 3? , or combinations of those ions. On heat treatment of these glasses at about 300-400°C, the rare-earth doped spherical PbF 2 nanocrystals precipitate within SiO 2 glass matrix providing transparent nano-structured glassceramics, while the diameter of the nanocrystals can be set in the range from 5 to 25 nm by varying time and temperature of the heat treatment. The structural and photoluminescence studies confirm the incorporation of rare-earth ions into the PbF 2 nanocrystals and white and tuneable colour up-conversion luminescence has been detected in case of Yb 3?-Er 3?-Tm 3? and Yb 3?-Ho 3?-Tm 3? co-doped nanocrystals by varying dopant ratio and pump power.

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Section: Introductionmentioning

confidence: 99%

Sol–gel preparation and white up-conversion luminescence in rare-earth doped PbF2 nanocrystals dissolved in silica glass

del-Castillo

Yanes

Méndez‐Ramos

et al. 2009

J Sol-Gel Sci Technol

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“…We calculated the wavelength dependence of the net gain cross-section as a function of population inversion and obtained gain and laser/optical amplification parameters at about 2.0 and 1.8 m for the Ho 3+ -and Tm 3+ -doped GC, respectively, and demonstrate their advantages compared to parameters reported for fluoride and oxide Ho 3+ -and Tm 3+ -doped hosts. We have reported on planar waveguides and the respective optical loss in the Er 3+ -doped oxyfluoride planar waveguides obtained by pulsed laser deposition of the respective precursor glass [7]. The transparency of these nano-glass-ceramics has been addressed in our previous publications, by means of, e.g.…”

mentioning

confidence: 99%

“…The same procedures were used in this work while the dopant, instead of Er 3+ , was either Ho 3+ or Tm 3+ . The dopant concentration of 3.5 mol% in the batch formulation has been empirically found to be an optimum concentration, which allows to obtain highly transparent nano-glass-ceramics on heattreatment [3,7,9]. The concentration of rare-earth dopants was estimated using the measured density of the samples and molar percentage of the dopants in the batch composition.…”

mentioning

confidence: 99%

Gain cross-sections of transparent oxyfluoride glass–ceramics single-doped with Ho3+ (at 2.0μm) and with Tm3+ (at 1.8μm)

Tikhomirov

Méndez‐Ramos

Rodrı́guez

et al. 2007

Journal of Alloys and Compounds

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“…Within this approach film glasses having different concentrations can be obtained, as demonstrated by the relatively large number of works reporting the synthesis of good quality Er-doped PNG, oxyfluoride silicate or phospho-tellurite film glasses. [26][27][28][29][30][31] Films deposited under the optimum experimental conditions present good optical properties as it is shown in Fig. 4a, which presents the transmittance of a film glass deposited on fused silica at room temperature from a RE-doped bulk fluorotellurite glass having a composition close to 73.6 TeO 2 -17.6 ZnO-8.8 ZnF 2 :0.7 ErF 3 (mol %).…”

Section: Rare-earth Doped Thin Film Glassesmentioning

confidence: 92%

Pulsed laser deposition of rare-earth-doped glasses: a step toward lightwave circuits

et al. 2016

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Pulsed Laser Deposition (PLD) is used to produce Er-doped lead-niobium germanate (PbO-Nb 2 O 5 -GeO 2 ) and fluorotellurite (TeO 2 -ZnO-ZnF 2 ) thin film glasses. Films having high refractive index, low absorption and large transmission are obtained in a narrow processing window that depends on the actual PLD configuration (O 2 pressure ∼a few Pa, Laser energy density ∼2-3 J cm -2 for the results presented in this work). However, Er-doped thin film glasses synthetized at room temperature using these experimental parameters show poor photoluminescence (PL) performance due to non-radiative decay channels, such as a large OHconcentration. Thermal annealing allows improving PL intensity and lifetime (τ PL ), the latter becoming close to that of the parent Er-doped bulk glass. In addition, the use of alternate PLD from host glass and rare-earth targets allows the synthesis of nanostructured thin film glasses with a controlled rare-earth concentration and in-depth distribution, as it is illustrated for Er-doped PbO-Nb 2 O 5 -GeO 2 film glasses. In this case, PL intensity at 1.53 μm increases with the spacing between Er-doped layers to reach a maximum for a separation between Er-doped layers ≥ 5 nm, while τ PL is close to the bulk value independently of the spacing. Finally, the comparison of these results with those obtained for films grown by standard PLD from Er-doped glass targets suggests that nanostructuration allows reducing rare-earth clustering and concentration quenching effects. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 05/24/2017 Terms of Use: http://spiedigitallibrary.org/ss/termsofuse.aspx Proc. of SPIE Vol. 9744 974402-2 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 05/24/2017 Terms of Use: http://spiedigitallibrary.org/ss/termsofuse.aspx

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Pulsed laser deposition of Er3+-doped oxyfluoride thin films

Cited by 5 publications

References 9 publications

Sol–gel preparation and white up-conversion luminescence in rare-earth doped PbF2 nanocrystals dissolved in silica glass

Sol–gel preparation and white up-conversion luminescence in rare-earth doped PbF2 nanocrystals dissolved in silica glass

Gain cross-sections of transparent oxyfluoride glass–ceramics single-doped with Ho3+ (at 2.0μm) and with Tm3+ (at 1.8μm)

Pulsed laser deposition of rare-earth-doped glasses: a step toward lightwave circuits

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