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Št. zadetkov: 5
ǂThe ǂrole of electrostriction in the generation of acoustic waves by optical forces in water
N. G. C. Astrath, B. Anghinoni, G. A. S. Flizikowski, V. S. Zanuto, Luis Carlos Malacarne, Mauro L. Baesso, Tomaž Požar, D. Razansky
Izvirni znanstveni članek
Oznake: electrostriction;radiation forces;photo-induced lensing effect;pressure-transients;Kerr lens;
We present semi-analytical solutions describing the spatiotemporal distributions of temperature and pressure inside low-absorbing dielectrics excited by tightly focused laser beams. These solutions are compared to measurements in water associated with variations of the local refractive index due to ...
Leto: 2023 Vir: Fakulteta za strojništvo (UL FS)
Towards a comprehensive characterization of spatio‑temporal dependence of light‑induced electromagnetic forces in dielectric liquids
N. G. C. Astrath, E. V. Bergmann, B. Anghinoni, G. A. S. Flizikowski, A. Novatski, C. Jacinto, Tomaž Požar, Mitjan Kalin, Luis Carlos Malacarne, Mauro L. Baesso
Izvirni znanstveni članek
Oznake: elektrostrikcija;sevalna sila;učinek fotoinduciranega lečenja;prehodni tlak;Kerrova leča;electrostriction;radiation forces;photo-induced lensing effect;pressure-transients;Kerr lens;
The interaction of localized light with matter generates optical electrostriction within dielectric fluids, leading to a discernible change in the refractive index of the medium according to the excitation’s light profile. This optical force holds critical significance in optical manipulation and pl ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Laser induced thermoelastic surface displacement in solids detected simultaneously by photothermal mirror and interferometry
G. A. S. Flizikowski, O. A. Capeloto, V. G. Camargo, B. Anghinoni, Mauro L. Baesso, Luis Carlos Malacarne, M. P. Belançon, Tomaž Požar, N. G. C. Astrath
Izvirni znanstveni članek
Oznake: photothermal mirror;interferometry;thermal expansion;
We propose a combined pump-probe optical method to investigate heat diffusion properties of solids. We demonstrate single-shot simultaneous laser-induced thermoelastic surface displacement of metals detected by concurrent measurements using photothermal mirror and interferometry. Both methods probe ...
Leto: 2020 Vir: Fakulteta za strojništvo (UL FS)
Unveiling bulk and surface radiation forces in a dielectric liquid
N. G. C. Astrath, G. A. S. Flizikowski, B. Anghinoni, Luis Carlos Malacarne, Mauro L. Baesso, Tomaž Požar, M. Partanen, Iver Håkon Brevik, D. Razansky, S. E. Bialkowski
Izvirni znanstveni članek
Oznake: elektrostrikcija;elektromagnetno polje;fotoinducirano lečenje;elastični valovi;electrostriction;electromagnetic field;photo-induced lensing;elastic waves;
Precise control over light-matter interactions is critical for many optical manipulation and material characterization methodologies, further playing a paramount role in a host of nanotechnology applications. Nonetheless, the fundamental aspects of interactions between electromagnetic fields and mat ...
Leto: 2022 Vir: Fakulteta za strojništvo (UL FS)
Influence of edge effects on laser-induced surface displacement of opaque materials by photothermal interferometry
G. A. S. Flizikowski, B. Anghinoni, J. H. Rohling, M. P. Belançon, R. S. Mendes, Mauro L. Baesso, Luis Carlos Malacarne, Tomaž Požar, S. E. Bialkowski, N. G. C. Astrath
Izvirni znanstveni članek
Oznake: photothermal mirror;interferometry;thermal expansion;
We demonstrate the influence of edge effects on the photothermal-induced phase shift measured by a homodyne quadrature laser interferometer and compare the experiments with rigorous theoretical descriptions of thermoelastic surface displacement of metals. The finite geometry of the samples is crucia ...
Leto: 2020 Vir: Fakulteta za strojništvo (UL FS)
Št. zadetkov: 5
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