N. G. C. Astrath (Author), E. V. Bergmann (Author), B. Anghinoni (Author), G. A. S. Flizikowski (Author), A. Novatski (Author), C. Jacinto (Author), Tomaž Požar (Author), Mitjan Kalin (Author), Luis Carlos Malacarne (Author), Mauro L. Baesso (Author)

Abstract

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 plays a fundamental role in numerous photonic applications. In this study, we demonstrate the applicability of the pump-probe, photo-induced lensing (PIL) method to investigate optical electrostriction in various dielectric liquids. Notably, the thermal and nonlinear effects are observed to be temporally decoupled from the electrostriction effects, facilitating isolated observation of the latter. Our findings provide a comprehensive explanation of optical forces in the context of the recently introduced microscopic Ampère electromagnetic formalism, which is grounded in the dipolar approximation of electromagnetic sources within matter and characterizes electrostriction as an electromagnetic-induced stress within the medium. Here, the optical force density is re-obtained through a new Lagrangian approach.

Keywords

elektrostrikcija;sevalna sila;učinek fotoinduciranega lečenja;prehodni tlak;Kerrova leča;electrostriction;radiation forces;photo-induced lensing effect;pressure-transients;Kerr lens;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 535
COBISS: 189407747 Link will open in a new window
ISSN: 2045-2322
Views: 13
Downloads: 0
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Other data

Secondary language: Slovenian
Secondary keywords: elektrostrikcija;sevalna sila;učinek fotoinduciranega lečenja;prehodni tlak;Kerrova leča;
Type (COBISS): Article
Pages: str. 1-13
Issue: ǂ[Vol.] ǂ14, [article no.] 5595
Chronology: Mar. 2024
DOI: 10.1038/s41598-024-56176-1
ID: 23179360