Haku
Viitteet 1-10 / 817
Pulse shaping by spectral-domain polarization gratings
(2022-04-15)
- article
We consider the spectral-domain counterparts of spatialdomain polarization gratings and study their effect on the temporal evolution of femtosecond-scale light pulses. These devices divide an incident light pulse to several ...
Glass-based composites comprised of CaWO4:Yb3+, Tm3+ crystals and SrAl2O4:Eu2+, Dy3+ phosphors for green afterglow after NIR charging
(2023)
- article
In this paper, we demonstrated the fabrication of new phosphate-based composites with green persistent luminescence after being charged with near-infrared light using the direct doping method. The composites are composed ...
Interacting ring-Airy beams in nonlinear media
(2021)
- article
The interactions between copropagating ring-Airy beams in a (2+1)-dimensional Kerr medium are numerically investigated for the first time. It is shown that two overlapping ring-Airy beams in such a medium produce controllable ...
High-speed production of antibacterial fabrics using liquid flame spray
(2020)
- article
Healthcare associated infections (HAIs) are known as one of the major problems of the modern healthcare system, which result in additional cost and mortality. It has also been shown that pathogenic bacteria are mostly ...
Characterization of laboratory and real driving emissions of individual Euro 6 light-duty vehicles – Fresh particles and secondary aerosol formation
(2019-12-01)
- article
Emissions from passenger cars are one of major sources that deteriorate urban air quality. This study presents characterization of real-drive emissions from three Euro 6 emission level passenger cars (two gasoline and one ...
Magnetic non-contact friction from domain wall dynamics actuated by oscillatory mechanical motion
(2019-08-13)
- article
Magnetic friction is a form of non-contact friction arising from the dissipation of energy in a magnet due to spin reorientation in a magnetic field. In this paper, we study magnetic friction in the context of micromagnetics, ...
Hybridized plasmon modes in a system of metal thin film-nanodisk array
(2019-09-21)
- article
Controlling the hybridization is a very powerful tool to manipulate the modes in a single nanostructure. We investigate the hybridization between localized and propagating surface plasmons in a nanostructure system where ...
Real-time characterization of spectral instabilities in a mode-locked fibre laser exhibiting soliton-similariton dynamics
(2019-09-27)
- article
The study of dissipative solitons in mode-locked lasers reveals a rich landscape of interaction dynamics resulting from the interplay of nonlinearity, dispersion and dissipation. Here, we characterize a range of instabilities ...
Dynamic Enhancement of Nitric Oxide Radioluminescence with Nitrogen Purge
(2019-09-25)
- article
Remote detection of alpha radiation is commonly realised by collecting the light, the radioluminescence, that is produced when alpha particles are stopped in air. Radioluminescence of nitric oxide (NO) is primarily emitted ...
Analytical computation of the demagnetizing energy of thin-film domain walls
(2019-09-25)
- article
Due to its nonlocal nature, calculating the demagnetizing field remains the biggest challenge in understanding domain structures in ferromagnetic materials. Analytical descriptions of demagnetizing effects typically ...