Launching of hyperbolic phonon-polaritons in h-BN slabs by resonant metal plasmonic antennas

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU134411" target="_blank" >RIV/00216305:26210/19:PU134411 - isvavai.cz</a>

Result on the web

<a href="https://www.nature.com/articles/s41467-019-11143-7" target="_blank" >https://www.nature.com/articles/s41467-019-11143-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41467-019-11143-7" target="_blank" >10.1038/s41467-019-11143-7</a>

Result language

angličtina

Original language name

Launching of hyperbolic phonon-polaritons in h-BN slabs by resonant metal plasmonic antennas

Original language description

Launching and manipulation of polaritons in van der Waals materials offers novel opportunities for field-enhanced molecular spectroscopy and photodetection, among other applications. 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. Here, we show —by far-field infrared spectroscopy, infrared nanoimaging and numerical simulations— 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. Our 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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

NATURE COMMUNICATIONS

ISSN

2041-1723

e-ISSN

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Volume of the periodical

10

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

1-8

UT code for WoS article

000476471300050

EID of the result in the Scopus database

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