A5020152247- Nonlinear Optical Materials Studies
- Terahertz technology and applications
- Photonic and Optical Devices
- Superconducting and THz Device Technology
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Fiber Laser Technologies
- Organic Electronics and Photovoltaics
- Photochemistry and Electron Transfer Studies
- Laser-Matter Interactions and Applications
- Energy Harvesting in Wireless Networks
- Photorefractive and Nonlinear Optics
- Conducting polymers and applications
- Fullerene Chemistry and Applications
- Boron Compounds in Chemistry
- Photochromic and Fluorescence Chemistry
- MXene and MAX Phase Materials
- Advanced Memory and Neural Computing
- Radioactive element chemistry and processing
- Gyrotron and Vacuum Electronics Research
- Advanced Fluorescence Microscopy Techniques
- Microplastics and Plastic Pollution
- Pharmacological Effects and Toxicity Studies
Comenius University Bratislava
2018-2024
Slovak Centre of Scientific and Technical Information
2024
International Laser Center
2022-2024
Treatment of the laser borane anti-B18H22 (compound 1) with iodine in ethanol gives monoiodinated derivative 7-I-anti-B18H21 2) 67% yield, or, by reaction or ICl presence AlCl3 dichloromethane, diiodinated 4,4′-I2-anti-B18H20 3) 85% yield. On excitation 360 nm light, both compounds 2 and 3 give strong green phosphorescent emissions (λmax = 525 nm, ΦL 0.41 λmax 545 0.71 respectively) that are quenched dioxygen to produce O2(1Δg) singlet oxygen quantum yields ΦΔ 0.52 0.36 respectively....
We theoretically investigate non-phasematched broadband THz amplification in dispersive chi(3) media. A short 100 fs pump pulse is interacting with a temporally matched second harmonic and weak signal through the four wave mixing process significant reshaping observed. The evolution dynamics explored by numerically solving set of generalized Nonlinear Schroedinger equations. influence incident chirp, duration role wavelength, seed frequency losses are evaluated separately. It found that...
Converting a THz signal into the optical domain is of great interest for sensing and spectroscopy. Here intense broadband pulses with central frequency $\Omega$$_{THz}$ are mixed an pump at $\omega$$_p$ observed wavelength $\omega$$_s$ = 2($\omega$$_p$ - $\Delta\omega$$_p$) $\Omega_{THz}$ detuning $\Delta\omega$$_p$ being due to pulse spectral broadening. The THz-FWM close 400 nm shown result from resonantly amplified four-wave mixing in CaF$_2$, BaF$_2$ MgF$_2$.
Converting a THz signal into the optical domain is of great interest for sensing and spectroscopy. Here intense broadband pulses with central frequency Ω
The second-order nonlinear refractive index n <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> (Kerr index) of cyclic olefin copolymer (TOPAS) and polymers (ZEONEX, ZEONOR) is determined to be approximately 2 × 10 <sup xmlns:xlink="http://www.w3.org/1999/xlink">-20</sup> m xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> W xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> for all cases at the wavelength 800 nm. obtained values n2 are...