Barium titanate nanostructures and thin films for photonics

A Karvounis, F Timpu… - Advanced Optical …, 2020 - Wiley Online Library
Barium titanate (BaTiO3) is a synthetic crystal used in electromechanical transducers and
multilayer ceramic capacitors. Since it is not available in nature, a variety of growth methods …

Femtosecond filamentation in transparent media

A Couairon, A Mysyrowicz - Physics reports, 2007 - Elsevier
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 …

An introduction to nonlinear integrated photonics devices: nonlinear effects and materials

L Sirleto, GC Righini - Micromachines, 2023 - mdpi.com
The combination of integrated optics technologies with nonlinear photonics, which has led to
the growth of nonlinear integrated photonics, has also opened the way to groundbreaking …

Optical nonlinearities of small polarons in lithium niobate

M Imlau, H Badorreck, C Merschjann - Applied Physics Reviews, 2015 - pubs.aip.org
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 …

Three-photon and four-photon absorption in lithium niobate measured by the Z-scan technique

I Benabdelghani, G Tóth, G Krizsán, G Bazsó… - Optics …, 2024 - opg.optica.org
Open-aperture Z-scan measurements have been carried out to investigate the three-photon
(3? PA) and four-photon absorption (4? PA) coefficients at 800? nm and 1030? nm …

Electro-optical behaviour and dielectric dynamics of harvested ferroelectric LiNbO 3 nanoparticle-doped ferroelectric liquid crystal nanocolloids

RK Shukla, CM Liebig, DR Evans, W Haase - Rsc Advances, 2014 - pubs.rsc.org
Nanocolloids comprising harvested ferroelectric LiNbO3 nanoparticles (≈ 25 nm) and
ferroelectric liquid crystals were prepared and investigated. The impact of the amount of …

Two-photon absorption in undoped LiTaO3 crystals

IS Steinberg, AV Kirpichnikov, VV Atuchin - Optical Materials, 2018 - Elsevier
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 …

Evidence for Light-Induced Hole Polarons in

P Herth, T Granzow, D Schaniel, T Woike, M Imlau… - Physical review …, 2005 - APS
Transient light-induced absorption in LiNbO 3 is observed in the blue-green spectral range
after pulsed illumination with 532 nm. Its buildup and decay in Fe-doped LiNbO 3 is …

Simulating self-learning in photorefractive optical reservoir computers

F Laporte, J Dambre, P Bienstman - Scientific Reports, 2021 - nature.com
Photorefractive materials exhibit an interesting plasticity under the influence of an optical
field. By extending the finite-difference time-domain method to include the photorefractive …

Investigation of nonlinear absorption processes with femtosecond light pulses in lithium niobate crystals

O Beyer, D Maxein, K Buse, B Sturman, HT Hsieh… - Physical Review E …, 2005 - APS
The propagation of high-power femtosecond light pulses in lithium niobate crystals (Li Nb O
3) is investigated experimentally and theoretically in collinear pump-probe transmission …