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Propagation of broadband coherent light through LIPSS-based metasurfaces in diamond
We study the propagation of coherent broadband light through laser induced periodic surface structures (LIPSS) fabricated on diamond surfaces. 3D finite-difference time-domain (FDTD) simulations were carried out for a variety of experimentally produced LIPSS morphologies, which include the specific...
Autores principales: | , , , , |
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Lenguaje: | eng |
Publicado: |
2022
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1364/ome.458774 http://cds.cern.ch/record/2816488 |
Sumario: | We study the propagation of coherent broadband light through laser induced periodic
surface structures (LIPSS) fabricated on diamond surfaces. 3D finite-difference time-domain
(FDTD) simulations were carried out for a variety of experimentally produced LIPSS morphologies, which include the specific nanometer-scale mesoscopic irregularities arising from the
fabrication technique. We compare their performance with sinusoidal grating-like structures,
showing that the specific features present in LIPSS nanoripples produce a considerable scattering
and diffraction when compared to the ideal nanostructures. With a view on determining the
scope of the potential optical and photonic applications of LIPSS, we evaluate the effect of these
irregularities on the transmitted spatial beam quality and the spatial phase characteristics of the
optical wavefront in a broad spectral range. |
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