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O. V. ANGELSKY1,2, C. Yu. ZENKOVA1,2,* , D. I. IVANSKY2, V. M. TKACHUK2, JUN ZHENG1
- Research Institute of Zhejiang University-Taizhou, China
- Chernivtsi National University, Chernivtsi, Ukraine
In this research we propose a new approach to solve the problem of diagnosing complex optical fields by using carbon nanoparticles obtained experimentally bythe bottom-up method. These nanoparticles have a size ofabout λ/10 and are characterized by a number of interesting optical properties: strong absorption and luminescence in the yellow-green region of the spectrum and weak absorption at the He-Ne laser radiation wavelength. These particular features made it possible to use these nanoparticles to determine the localization (diagnostics) of the points of phase singularities of the studied optical field and to reconstructthe distribution of the field intensity. The results of both a model experiment and computer simulation, which enabledto demonstrate the effectiveness of the proposed approachare proposed in the given paper. As a result of computer simulation, an inhomogeneous surface withthe corresponding optical field in the form of a spatial distribution were synthesized. The use of Hilbert transform allowedreconstructingthe phase map of the optical field with high accuracy..
Speckle-field, Optical singularity, Carbon nanoparticle, Hilbert transform.
Submitted at: Dec. 2, 2020
Accepted at: June 11, 2021
O. V. ANGELSKY, C. Yu. ZENKOVA, D. I. IVANSKY, V. M. TKACHUK, JUN ZHENG, Carbon nanoparticles for study complex optical fields, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 5-6, pp. 209-215 (2021)
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