Their results provide fundamental insights into the launching of HPhPs in thin polar slabs by resonant plasmonic antennas, which will be crucial for phonon-polariton based nanophotonic devices.*<\/p>\n\n\n\n
A commercial s-SNOM setup in which the oscillating (at a frequency \u03a9\u2245270kHz) metal-coated (Pt\/Ir) AFM tip (NanoWorld ARROW-NCPt<\/a>) was illuminated by p-polarized mid-IR radiation, was used.* <\/p>\n\n\n\n *P. Pons-Valencia, F. J. Alfaro-Mozaz, M. M. Wiecha, V. Biolek, I. Dolado, S. V\u00e9lez,P. Li, P. Alonso-Gonz\u00e1lez, F. Casanova, L. E. Hueso, L. Mart\u00edn-Moreno, R. Hillenbrand, A. Y. Nikitin Please follow this external link to read the full article: http<\/a>s:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6642108\/<\/a><\/p>\n\n\n\n \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nOpen\nAccess: The paper \u00ab Launching of hyperbolic phonon-polaritons in h-BN slabs by\nresonant metal plasmonic antennas \u00bb by P. Pons-Valencia, F. J. Alfaro-Mozaz, M.\nM. Wiecha, V. Biolek, I. Dolado, S. V\u00e9lez,P. Li, P. Alonso-Gonz\u00e1lez, F.\nCasanova, L. E. Hueso, L. Mart\u00edn-Moreno, R. Hillenbrand and A. Y. Nikitin is\nlicensed under a Creative Commons Attribution 4.0 International License, which\npermits use, sharing, adaptation, distribution and reproduction in any medium\nor format, as long as you give appropriate credit to the original author(s) and\nthe source, provide a link to the Creative Commons license, and indicate if\nchanges were made. The images or other third party material in this article are\nincluded in the article\u2019s Creative Commons license, unless indicated otherwise\nin a credit line to the material. If material is not included in the article\u2019s\nCreative Commons license and your intended use is not permitted by statutory\nregulation or exceeds the permitted use, you will need to obtain permission directly\nfrom the copyright holder. To view a copy of this license, visit\nhttp:\/\/creativecommons.org\/licenses\/by\/4.0\/.\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":" Launching and manipulation of polaritons in van der Waals materials offers novel opportunities for applications such as field-enhanced molecular spectroscopy and photodetection.* Particularly, the highly confined hyperbolic phonon polaritons (HPhPs) in h-BN slabs attract growing interest for their capability of guiding light at the nanoscale. An efficient coupling between free space photons and HPhPs is, … Continue reading Launching of hyperbolic phonon-polaritons in h-BN slabs by resonant metal plasmonic antennas<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[62,19,98,36,236,235,102,237,234,233,231,238,232,148],"class_list":["post-1468","post","type-post","status-publish","format-standard","hentry","category-news","tag-afm-probes","tag-arrow-afm-probe","tag-arrow-ncpt","tag-conductive-afm-tip","tag-nano-optics","tag-nanophotonics","tag-nanophotonics-and-plasmonics","tag-nanoplasmonics","tag-near-field-measurements","tag-near-field-measurements-with-s-snom","tag-s-snom","tag-scanning-near-field-optical-microscopy","tag-sub-wavelength-optics","tag-two-dimensional-materials"],"_links":{"self":[{"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/posts\/1468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/comments?post=1468"}],"version-history":[{"count":8,"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/posts\/1468\/revisions"}],"predecessor-version":[{"id":1477,"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/posts\/1468\/revisions\/1477"}],"wp:attachment":[{"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/media?parent=1468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/categories?post=1468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nanoworld.com\/blog\/wp-json\/wp\/v2\/tags?post=1468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"](\"https:\/\/dhipgo7nn2tea.cloudfront.net\/wp-content\/uploads\/2019\/08\/28125244\/figure-4-from-Launching-of-hyperbolic-phonon-polaritons-in-h-BN-slabs-by-resonant-metal-plasmonic-antennas_2.jpg\")
Figure 4 from \u201cLaunching of hyperbolic phonon-polaritons in h-BN slabs by resonant metal plasmonic antennas\u201d by P. Pons-Valencia et al. :
Near-field imaging of the HPhPs launched by the gold antenna. a Schematics of the s-SNOM setup. b Illustration of antenna launching of HPhPs. The spatial distribution of the near-field (shown by the red and blue colors) is adapted from the simulation of Re(Ez). c Topography of the antenna. d Simulated near-field distribution, |E(x, y)|, created by the rod antenna on CaF2 (the field is taken at the top surface of the antenna). Scale bars in c, d are 0.5\u2009\u03bcm. e, h Experimental near-field images. f, i Simulated near-field distribution |Ez(x, y)| (taken 150\u2009nm away from the h-BN slab). g, j Simulated near-field distribution |Ez(z, y)| taken in the cross-section plane along the center of the rod antenna. In e\u2013g \u03c9\u2009=\u20091430\u2009cm\u22121, while in h\u2013j \u03c9\u2009=\u20091515\u2009cm\u22121. The scale bars in e\u2013i are 2\u2009\u03bcm and in g, j are 0.1\u2009\u03bcm (vertical) and 0.5\u2009\u03bcm (horizontal). The length of the antenna in all panels is L\u2009=\u20092.29\u2009\u03bcm <\/figcaption><\/figure>\n\n\n\n
Launching of hyperbolic phonon-polaritons in h-BN slabs by resonant metal plasmonic antennas<\/strong>
Nature Communications 2019; 10: 3242
doi: 10.1038\/s41467-019-11143-7<\/p>\n\n\n\n