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Laser Fabrication of Highly Ordered Nanocomposite Subwavelength Gratings

Optical nanogratings are widely used for different optical, photovoltaic, and sensing devices. However, fabrication methods of highly ordered gratings with the period around optical wavelength range are usually rather expensive and time consuming. In this article, we present high speed single-step a...

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Detalles Bibliográficos
Autores principales: Andreeva, Yaroslava, Suvorov, Alexander, Grigoryev, Evgeniy, Khmelenin, Dmitry, Zhukov, Mikhail, Makin, Vladimir, Sinev, Dmitry
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9416309/
https://www.ncbi.nlm.nih.gov/pubmed/36014676
http://dx.doi.org/10.3390/nano12162811
Descripción
Sumario:Optical nanogratings are widely used for different optical, photovoltaic, and sensing devices. However, fabrication methods of highly ordered gratings with the period around optical wavelength range are usually rather expensive and time consuming. In this article, we present high speed single-step approach for fabrication of highly ordered nanocomposite gratings with a period of less than 355 nm. For the purpose, we used commercially available nanosecond-pulsed fiber laser system operating at the wavelength of 355 nm. One-dimensional and two-dimensional nanostructures can be formed by direct laser treatment with different scan speed and intensity. These structures exhibit not only dispersing, but also anisotropic properties. The obtained results open perspectives for easier mass production of polarization splitters and filters, planar optics, and also for security labeling.