Stabilization of quantum dots by polymer microspheres in the study of optical flows

V. I. Kryvetskyi; Ch. V. Felde; Yu. B. Khalavka; N. V. Horodynska; I. V. Fesiv

doi:10.1117/12.3015012

5 January 2024 Stabilization of quantum dots by polymer microspheres in the study of optical flows

V. I. Kryvetskyi, Ch. V. Felde, Yu. B. Khalavka, N. V. Horodynska, I. V. Fesiv

Author Affiliations +

Proceedings Volume 12938, Sixteenth International Conference on Correlation Optics; 1293823 (2024) https://doi.org/10.1117/12.3015012
Event: International Conference Correlation Optics (COR 2023), 2023, Chernivtsi, Ukraine

Abstract

Application of fluorescent nanoparticles for optical flow diagnostics is an essential task, as they enable the determination of the locations of phase singularities and saddle points in the field by intensity extrema1-3 . The motion of such particles in an optical field is driven by optical forces (gradient and scattering forces) and Brownian forces. However, nanoparticles with sizes smaller than 100 nm are virtually not retained even by powerful light beams, as Brownian motion predominates over optical forces. Therefore, for the investigation of optical flows, we can utilize nanoparticles embedded within polymer spheres ranging from 0.5 to 10 µm in size, which do not quench fluorescence and allow for optical manipulation. These polymer nanoparticles can be obtained by introducing fluorescent quantum dots into polymer microspheres. They are referred to as encapsulated or hybrid nanoparticles^4,5 .

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

V. I. Kryvetskyi, Ch. V. Felde, Yu. B. Khalavka, N. V. Horodynska, and I. V. Fesiv "Stabilization of quantum dots by polymer microspheres in the study of optical flows", Proc. SPIE 12938, Sixteenth International Conference on Correlation Optics, 1293823 (5 January 2024); https://doi.org/10.1117/12.3015012

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