Spatial Self-Phase Modulation of Optical Vortex Beams in Liquid Suspensions of Semiconducting, Semimetallic, and Metallic 2D Nanoflakes due to a Kerr-like Nonlinearity

Optical vortex beam (OVB) propagation through liquid suspensions of semiconducting, semimetallic, and metallic 2D nanoflakes, MoS2, NbS2, and WTe2, respectively, was studied under different excitation conditions regarding the optical absorption region. It is demonstrated that the OVB generated using...

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Bibliographic Details
Published in:Journal of physical chemistry. C 2024-01, Vol.128 (3), p.1350-1356
Main Authors: Campos, Cecília L. A. V., Bautista, Jessica E. Q., Amaral, Anderson M., de Araújo, Cid B., Jawaid, Ali M., Busch, Robert, Vaia, Richard A., Gomes, Anderson S. L.
Format: Article
Language:English
Subjects:
C: Physical Properties of Materials and Interfaces
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Summary:Optical vortex beam (OVB) propagation through liquid suspensions of semiconducting, semimetallic, and metallic 2D nanoflakes, MoS2, NbS2, and WTe2, respectively, was studied under different excitation conditions regarding the optical absorption region. It is demonstrated that the OVB generated using a spatial light modulator propagates under intensity-dependent refraction originating from thermal nonlinearity. Besides the nanomaterial’s suspensions, measurements were also performed with pristine solvents to corroborate the thermally induced intensity dependence arising from light absorption in the studied media.
ISSN:1932-7447
1932-7455
DOI:10.1021/acs.jpcc.3c06636