Optothermal vortex-solitons in liquid crystals

Optothermal vortex-solitons in liquid crystals

We report on vortex-solitons generated in dye-doped nematic liquid crystals by a purely optothermal nonlocal nonlinearity. This response not only supports stable doughnut-shaped ordinary-wave beams with orbital angular momentum, but also provides self-confined solitary waves with excellent trajector...

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Veröffentlicht in:Optics letters 2020-04, Vol.45 (8), p.2451-2453
Hauptverfasser: Kwaśny, Michał, Karpierz, Mirosław A, Assanto, Gaetano, Laudyn, Urszula A
Format: Artikel
Sprache:eng
Schlagworte:
Angular momentum
Liquid crystals
Nematic crystals
Nonlinearity
Solitary waves
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Zusammenfassung:We report on vortex-solitons generated in dye-doped nematic liquid crystals by a purely optothermal nonlocal nonlinearity. This response not only supports stable doughnut-shaped ordinary-wave beams with orbital angular momentum, but also provides self-confined solitary waves with excellent trajectory and profile stability over time. Using an interferometric technique, we also investigate the role of nonlocal nonlinearity in the non-illuminated axial region.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.388340