Publication detail

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

PONS-VALENCIA, P., ALFARO-MOZAZ, F. J., WIECHA, M. M., BIOLEK, V., DOLADO, I., VELEZ, S., LI, P., ALONSO-GONZALEZ, P., CASANOVA, F., HUESO, L.E., MARTIN-MORENO, L., HILLENBRAND, R., NIKITIN, A.Y.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

metamaterials; modes; nitride; films

Authors

PONS-VALENCIA, P., ALFARO-MOZAZ, F. J., WIECHA, M. M., BIOLEK, V., DOLADO, I., VELEZ, S., LI, P., ALONSO-GONZALEZ, P., CASANOVA, F., HUESO, L.E., MARTIN-MORENO, L., HILLENBRAND, R., NIKITIN, A.Y.

Released

19. 7. 2019

Publisher

Springer Nature

ISBN

2041-1723

Periodical

NATURE COMMUNICATIONS

Year of study

10

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

8

Pages count

8

URL

https://www.nature.com/articles/s41467-019-11143-7

Full text in the Digital Library

http://hdl.handle.net/11012/184644

BibTex

@article{BUT160664,
  author="Pablo {Pons-Valencia} and Francisco Javier {Alfaro-Mozaz} and Matthias Marco {Wiecha} and Vladimír {Biolek} and Ignacio {Dolado} and Saul {Velez} and Peining {Li} and Pablo {Alonso-González} and Felix {Casanova} and Luis E. {Hueso} and Luis {Martin-Moreno} and Rainer {Hillenbrand} and Alexey {Nikitin}",
  title="Launching of hyperbolic phonon-polaritons in h-BN slabs by resonant metal plasmonic antennas",
  journal="NATURE COMMUNICATIONS",
  year="2019",
  volume="10",
  number="1",
  pages="1--8",
  doi="10.1038/s41467-019-11143-7",
  issn="2041-1723",
  url="https://www.nature.com/articles/s41467-019-11143-7"
}