Nonlinear optics has undergone dramatic developments in the past 60 years, which has
revolutionized the photonic and optoelectronic fields with many essential applications such …

This paper introduces and discusses the main aspects of ultrashort laser pulse filamentation
in various transparent media such as air (gases), transparent solids and liquids. The …

Researchers have recently revealed that hybrid lead halide perovskites exhibit
ferroelectricity, which is often associated with other physical characteristics, such as a large …

The use of laser pulse sequences to drive the cascaded difference frequency generation of
high energy, high peak-power and multi-cycle terahertz pulses in cryogenically cooled (100 …

We present a detailed characterization of photorefraction in on-chip high-Q lithium niobate
(LN) microresonators. We show that the photorefractive effect in these devices exhibits very …

Different aspects of ferroelectric LiTaO 3 (LT) such as polaronic defects, optical response
and electrical conductivity are investigated by the most recent theoretical and experimental …

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 …

The advancement of ultrafast photonics and optoelectronic devices necessitates the
exploration of new materials with optical and chemical stability to implement practical …

Nanocolloids comprising harvested ferroelectric LiNbO3 nanoparticles (≈ 25 nm) and
ferroelectric liquid crystals were prepared and investigated. The impact of the amount of …

The two-photon absorption (TPA) coefficient is obtained for pure lithium tantalate (LT)
crystals as a function of C Li= 100%× Li 2 O/(Li 2 O+ Ta 2 O 5) ratio. Five LT samples with C …