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Slow light nanocoatings for ultrashort pulse compression

Transparent materials do not absorb light but have profound influence on the phase evolution of transmitted radiation. One consequence is chromatic dispersion, i.e., light of different frequencies travels at different velocities, causing ultrashort laser pulses to elongate in time while propagating....

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Detalles Bibliográficos
Autores principales: Ossiander, M., Huang, Y.-W., Chen, W. T., Wang, Z., Yin, X., Ibrahim, Y. A., Schultze, M., Capasso, F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8586156/
https://www.ncbi.nlm.nih.gov/pubmed/34764297
http://dx.doi.org/10.1038/s41467-021-26920-6
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author Ossiander, M.
Huang, Y.-W.
Chen, W. T.
Wang, Z.
Yin, X.
Ibrahim, Y. A.
Schultze, M.
Capasso, F.
author_facet Ossiander, M.
Huang, Y.-W.
Chen, W. T.
Wang, Z.
Yin, X.
Ibrahim, Y. A.
Schultze, M.
Capasso, F.
author_sort Ossiander, M.
collection PubMed
description Transparent materials do not absorb light but have profound influence on the phase evolution of transmitted radiation. One consequence is chromatic dispersion, i.e., light of different frequencies travels at different velocities, causing ultrashort laser pulses to elongate in time while propagating. Here we experimentally demonstrate ultrathin nanostructured coatings that resolve this challenge: we tailor the dispersion of silicon nanopillar arrays such that they temporally reshape pulses upon transmission using slow light effects and act as ultrashort laser pulse compressors. The coatings induce anomalous group delay dispersion in the visible to near-infrared spectral region around 800 nm wavelength over an 80 nm bandwidth. We characterize the arrays’ performance in the spectral domain via white light interferometry and directly demonstrate the temporal compression of femtosecond laser pulses. Applying these coatings to conventional optics renders them ultrashort pulse compatible and suitable for a wide range of applications.
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spelling pubmed-85861562021-11-15 Slow light nanocoatings for ultrashort pulse compression Ossiander, M. Huang, Y.-W. Chen, W. T. Wang, Z. Yin, X. Ibrahim, Y. A. Schultze, M. Capasso, F. Nat Commun Article Transparent materials do not absorb light but have profound influence on the phase evolution of transmitted radiation. One consequence is chromatic dispersion, i.e., light of different frequencies travels at different velocities, causing ultrashort laser pulses to elongate in time while propagating. Here we experimentally demonstrate ultrathin nanostructured coatings that resolve this challenge: we tailor the dispersion of silicon nanopillar arrays such that they temporally reshape pulses upon transmission using slow light effects and act as ultrashort laser pulse compressors. The coatings induce anomalous group delay dispersion in the visible to near-infrared spectral region around 800 nm wavelength over an 80 nm bandwidth. We characterize the arrays’ performance in the spectral domain via white light interferometry and directly demonstrate the temporal compression of femtosecond laser pulses. Applying these coatings to conventional optics renders them ultrashort pulse compatible and suitable for a wide range of applications. Nature Publishing Group UK 2021-11-11 /pmc/articles/PMC8586156/ /pubmed/34764297 http://dx.doi.org/10.1038/s41467-021-26920-6 Text en © The Author(s) 2021, corrected publication 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Ossiander, M.
Huang, Y.-W.
Chen, W. T.
Wang, Z.
Yin, X.
Ibrahim, Y. A.
Schultze, M.
Capasso, F.
Slow light nanocoatings for ultrashort pulse compression
title Slow light nanocoatings for ultrashort pulse compression
title_full Slow light nanocoatings for ultrashort pulse compression
title_fullStr Slow light nanocoatings for ultrashort pulse compression
title_full_unstemmed Slow light nanocoatings for ultrashort pulse compression
title_short Slow light nanocoatings for ultrashort pulse compression
title_sort slow light nanocoatings for ultrashort pulse compression
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8586156/
https://www.ncbi.nlm.nih.gov/pubmed/34764297
http://dx.doi.org/10.1038/s41467-021-26920-6
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