Crystal Physics Group

Basic and applied research topics:

• Infrared spectroscopic investigation of the thermal behaviour and absorption of OH^- ions incorporated in LiNbO₃ crystals with various Li/Nb ratios
• Investigation of di-, tri- and tetravalent dopant ions incorporated in LiNbO₃ crystals
• Spectroscopic investigation of GdAl₃(BO₃)₄, YAl₃(BO₃)₄ and Li₆Y(BO₃)₃ crystals doped with rare-earth ions
• Energy transfer between rare-earth ions and cooperative processes in Yb³⁺-doped LYB crystal
• Absorption spectroscopic determination of the amount of hydroxyl ion (OH^-) impurity significantly modifying quartz tube lifetime

Instrumentation:

• BRUKER IFS-66v Fourier transform infrared spectrophotometer
• BRUKER IFS 120 HR FTIR spectrophotometer
• JASCO V550 UV-visible spectrophotometer
• Closed-cycle He cryostat for temperature dependent spectroscopic measurements (8-450K)
• Setups for temperature dependent dielectric and conductivity measurements
• Raman spectroscopic and luminescence measurements are available in national and international cooperations