An overview of optical nonlinearities of small bound polarons is given, which can occur in
the congruently melting composition of LiNbO 3. Such polarons decisively influence the …

Near-infrared (NIR) marker-based imaging is of growing importance for deep tissue imaging
and is based on a considerable reduction of optical losses at large wavelengths. We aim to …

Based on a model of coupled processes with differently time-dependent decay kinetics we
present a critical review on photoluminescence (PL) and transient absorption (TA) …

Hole polarons and defect-bound exciton polarons in lithium niobate are investigated by
means of density-functional theory, where the localization of the holes is achieved by …

Transient absorption and photoluminescence are experimentally investigated in the
polaronic reference system lithium niobate, LiNbO (LN), with the aim to refine the …

The number densities and absorption cross sections of both optically generated and
reduction-induced small electron and hole polarons in LiNbO 3 are determined by means of …

Various manifestations of small polarons strongly affect the linear and nonlinear optical
properties of the oxide crystal lithium niobate (LiNbO 3, LN). While related transient …

A strongly temperature-dependent photo-induced transient absorption is measured in 6.5
mol% magnesium-doped lithium niobate at temperatures ranging from 45 K to 225 K. This …

The formation and relaxation dynamics of electron polarons in lithium niobate crystals were
investigated by measuring transient absorption induced by blue femtosecond pulses …

A comparative study on the light-induced absorption was performed for lithium niobate and
lithium tantalate crystals in which the antisite defects were eliminated by MgO doping. The …