10
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Giant magneto-birefringence effect and tuneable colouration of 2D crystal suspensions

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          One of the long-sought-after goals in light manipulation is tuning of transmitted interference colours. Previous approaches toward this goal include material chirality, strain and electric-field controls. Alternatively, colour control by magnetic field offers contactless, non-invasive and energy-free advantages but has remained elusive due to feeble magneto-birefringence in conventional transparent media. Here we demonstrate an anomalously large magneto-birefringence effect in transparent suspensions of magnetic two-dimensional crystals, which arises from a combination of a large Cotton-Mouton coefficient and relatively high magnetic saturation birefringence. The effect is orders of magnitude stronger than those previously demonstrated for transparent materials. The transmitted colours of the suspension can be continuously tuned over two-wavelength cycles by moderate magnetic fields below 0.8 T. The work opens a new avenue to tune transmitted colours, and can be further extended to other systems with artificially engineered magnetic birefringence.

          Abstract

          Materials with tunable transmitted colours are sought after for a range of applications. The authors here present magnetic-field-controlled color tuning in a transparent suspension of 2D crystals with unusually large magneto-birefringence.

          Related collections

          Most cited references27

          • Record: found
          • Abstract: not found
          • Article: not found

          Magnetism in two-dimensional van der Waals materials

            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Highly tunable superparamagnetic colloidal photonic crystals.

              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Temporal color mixing and dynamic beam shaping with silicon metasurfaces

              Metasurfaces offer the possibility to shape optical wavefronts with an ultracompact, planar form factor. However, most metasurfaces are static, and their optical functions are fixed after the fabrication process. Many modern optical systems require dynamic manipulation of light, and this is now driving the development of electrically reconfigurable metasurfaces. We can realize metasurfaces with fast (>10 5 hertz), electrically tunable pixels that offer complete (0- to 2π) phase control and large amplitude modulation of scattered waves through the microelectromechanical movement of silicon antenna arrays created in standard silicon-on-insulator technology. Our approach can be used to realize a platform technology that enables low-voltage operation of pixels for temporal color mixing and continuous, dynamic beam steering and light focusing.
                Bookmark

                Author and article information

                Contributors
                geim@manchester.ac.uk
                bilu.liu@sz.tsinghua.edu.cn
                hmcheng@sz.tsinghua.edu.cn
                Journal
                Nat Commun
                Nat Commun
                Nature Communications
                Nature Publishing Group UK (London )
                2041-1723
                24 July 2020
                24 July 2020
                2020
                : 11
                : 3725
                Affiliations
                [1 ]ISNI 0000 0001 0662 3178, GRID grid.12527.33, Tsinghua-Berkeley Shenzhen Institute and Tsinghua Shenzhen International Graduate School, , Tsinghua University, ; Shenzhen, 518055 China
                [2 ]ISNI 0000000121662407, GRID grid.5379.8, Department of Physics and Astronomy, , University of Manchester, ; Manchester, M13 9PL UK
                [3 ]ISNI 0000000119573309, GRID grid.9227.e, Shenyang National Laboratory for Materials Science, Institute of Metal Research, , Chinese Academy of Sciences, ; Shenyang, 110016 China
                [4 ]ISNI 0000 0004 0407 4824, GRID grid.5475.3, Advanced Technology Institute, , University of Surrey, ; Guildford, Surrey GU2 7XH UK
                Author information
                http://orcid.org/0000-0001-6646-7285
                http://orcid.org/0000-0003-4309-365X
                http://orcid.org/0000-0001-5991-7778
                http://orcid.org/0000-0003-2861-8331
                http://orcid.org/0000-0002-7274-5752
                http://orcid.org/0000-0002-5387-4241
                Article
                17589
                10.1038/s41467-020-17589-4
                7381639
                32709947
                2f86f0ac-5350-47a0-af95-1e34aa0d9113
                © Crown 2020

                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/.

                History
                : 13 February 2020
                : 3 July 2020
                Categories
                Article
                Custom metadata
                © The Author(s) 2020

                Uncategorized
                two-dimensional materials,magneto-optics,magnetic properties and materials
                Uncategorized
                two-dimensional materials, magneto-optics, magnetic properties and materials

                Comments

                Comment on this article