Optical vortices generation by azopolymeric relief gratings
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MELNIKOVA, Elena, GORBACH, D., RUSHNOVA, Irina, KABANOVA, Olga, SLUSARENKO, S., TOLSTIK, Alexei, LOSHMANSKY, Constantin, MESHALKIN, Alexei, AKIMOVA, Elena. Optical vortices generation by azopolymeric relief gratings. In: Nonlinear Phenomena in Complex Systems, 2021, nr. 2(24), pp. 104-111. ISSN 1561-4085. DOI: https://doi.org/10.33581/1561-4085-2021-24-2-104-111
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Nonlinear Phenomena in Complex Systems
Numărul 2(24) / 2021 / ISSN 1561-4085 /ISSNe 1817-2458

Optical vortices generation by azopolymeric relief gratings

DOI: https://doi.org/10.33581/1561-4085-2021-24-2-104-111

Pag. 104-111

Melnikova Elena1, Gorbach D.1, Rushnova Irina1, Kabanova Olga1, Slusarenko S.1, Tolstik Alexei1, Loshmansky Constantin2, Meshalkin Alexei2, Akimova Elena2
 
1 Belarusian State University,
2 Institute of Applied Physics
 
Disponibil în IBN: 13 august 2021


Rezumat

The energy and spectral conditions for single-stage holographic recording of a diffraction optical element based on the carbazole-containing azo polymer, that forms singular light beams (optical vortices), have been established. With the atomic-force microscopy (AFM), the surface morphology of the recorded relief holograms was studying, and their diffraction efficiency has been estimated. The topology of the generated optical phase singularities has been studied and the stability range of an optical vortex having the topological charge l = 2 has been found. The possibility of using the developed diffractive optical element in the scheme of optical tweezers for manipulating micro-objects is demonstrated.

Cuvinte-cheie
Azo polymer, holographic recording, Optical vortices, surface relief grating