We’re at JASIS 2019 – you too?
You’re welcome to visit us @NanoAndMore Japan https://www.nanoandmore.jp/ booth 6A-402 at #JASIS2019 from September 4-6th, 2019 at Makuhari Messe, Japan to learn more about NanoWorld high quality #AFM probes for #AtomicForceMicroscopy and #ScanningProbeMicroscopy #AFMプローブ #原子間力顕微鏡
New post - Launching of hyperbolic phonon-polaritons in h-BN slabs by resonant metal plasmonic antennas has been published on NanoWorld Blog.
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, however, hampered by their large momentum mismatch.* In the article “Launching of hyperbolic phonon-polaritons in h-BN slabs by resonant metal plasmonic antennas” P. Pons-Valencia, F. J. Alfaro-Mozaz, M. M. Wiecha, V. Biolek, I. Dolado, S. Vélez,P. Li, P. Alonso-González, F. Casanova, L. E. Hueso, L. Martín-Moreno, R. Hillenbrand and A. Y. Nikitin show that resonant metallic antennas can efficiently launch HPhPs in thin h-BN slabs. Despite the strong hybridization of HPhPs in the h-BN slab and Fabry-Pérot plasmonic resonances in the metal antenna, the efficiency of launching propagating HPhPs in h-BN by resonant antennas exceeds significantly that of the non-resonant ones. 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.* A commercial s-SNOM setup in which the oscillating (at a frequency Ω≅270kHz) metal-coated (Pt/Ir) AFM tip (NanoWorld ARROW-NCPt) was illuminated by p-polarized mid-IR radiation, was used.* https://www.nanoworld.com/tapping-mode-platinum-coated-afm-tip-arrow-ncpt Please have a look the NanoWorld blog for the full citation and a direct link to the full paper.