Activities

Objective 1.

Crystals for laser applications: growth of various concentrations Tm³⁺ and Tb³⁺ – doped fluoride (CaF₂, BaF₂ ) crystals.

Activities - Objective 1

1.1 Experimental determination of growth parameters for Tm³⁺ and Tb³⁺ – doped fluoride (CaF₂, BaF₂) crystals.

1.2 Optimization of crystal growth process using numerical modelling.

1.3 Growth of various concentrations Tm³⁺ and Tb³⁺ – doped fluoride (CaF₂, BaF₂) crystals using vertical Bridgman method.

Objective 2.

Crystals for laser applications: growth of various concentrations Yb³⁺ / Er³⁺ – double-doped sesquioxides crystals (Y₂O₃, Gd₂O₃, Lu₂O₃).

Activities - Objective 2

2.1 Experimental determination of growth parameters for various concentrations Yb³⁺ / Er³⁺ – double doped sesquioxides crystals (Y₂O₃, Gd₂O₃, Lu₂O₃).

2.2 Optimization of crystal growth process using numerical modelling.

2.3 Growth of various concentrations Yb³⁺ / Er³⁺ – double doped sesquioxides crystals (Y₂O₃, Gd₂O₃, Lu₂O₃) by flux method.

Objective 3.

Crystals for magneto-optical applications: growth of KRE₃F₁₀ (RE = Y, Tb) crystals and Tb₂O₃-Y₂O₃ solid solutions.

Activities - Objective 3

3.1 Experimental determination of growth parameters for KRE₃F₁₀ (RE = Y, Tb) crystals and Tb₂O₃-Y₂O₃ solid solutions.

3.2 Optimization of crystal growth process using numerical modelling.

3.3 Growth of KRE₃F₁₀ (R = Y, Tb) crystals and and Tb₂O₃-Y₂O₃ solid solutions by Bridgman method.

Objective 4.

Characterization of structural defects of grown crystals for laser and magneto-optical applications.

Activities - Objective 4

4.1 Laue and X-ray Diffraction (XRD) Analysis

4.2 Studies on the structural defects (i.e. dislocations) using chemical etching method.

4.3 Chemical analysis and study of dopant ions distribution along the crystals.

4.4 Dielectric spectra of crystals.

4.5 DFT and DFT + eDMFT studies for structural analysis (dopant distribution, defects-dislocations).

Objective 5.

Characterization of spectroscopic properties of fluoride and sesquioxides grown crystals for laser applications.

Activities - Objective 5

5.1 Optical absorption spectra measurements.

5.2 Emission and excitation spectra measurements.

5.3 Lifetime measurements.

5.4 Lifetime measurements.

5.5 DFT and DFT + eDMFT studies for spectroscopic analysis (optical properties, interaction of the correlated f states with the host).

Objective 6.

Characterization of magneto-optical properties of KRE₃F₁₀ (RE = Y, Tb) crystals and Tb₂O₃-Y₂O₃ solid solutions.

Activities - Objective 6

6.1 Optical properties of KRE₃F₁₀ (RE = Y, Tb) crystals and Tb₂O₃-Y₂O₃ solid solutions.

6.2 Magnetic properties of KRE₃F₁₀ (RE = Y, Tb) crystals and Tb₂O₃-Y₂O₃ solid solutions.

6.3 Ground state properties using DFT + eDMFT (state-of-the-art method in studying f electron systems).

Enhanced Single Crystal Applications and Research in the Growth of new Optical rare earth-based compounds for sustainable and efficient Technologies