Milliwatt terahertz harmonic generation from topological insulator metamaterials

Klaas-Jan Tielrooij; Alessandro Principi; David Saleta Reig; Alexander Block; Sebin Varghese; Steffen Schreyeck; Karl Brunner; Grzegorz Karczewski; Igor Ilyakov; Oleksiy Ponomaryov; Thales V. A. G. de Oliveira; Min Chen; Jan-Christoph Deinert; Carmen Gomez Carbonell; Sergio O. Valenzuela; Laurens W. Molenkamp; Tobias Kiessling; Georgy V. Astakhov; Sergey Kovalev

doi:10.1038/s41377-022-01008-y

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Milliwatt terahertz harmonic generation from topological insulator metamaterials

Original Articles

- Milliwatt terahertz harmonic generation from topological insulator metamaterials
- Milliwatt terahertz harmonic generation from topological insulator metamaterials
- LSA 2022年11卷第11期页码：2766-2773
- Affiliations：
  
  1.Catalan Institute of Nanoscience and Nanotechnology (ICN2), BIST and CSIC, Campus UAB, Bellaterra, Barcelona 08193, Spain
  2.Department of Applied Physics, TU Eindhoven, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
  3.School of Physics and Astronomy, University of Manchester, M13 9PL Manchester, UK
  4.Physikalisches Institut (EP3), Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
  5.Institute of Physics, Polish Academy of Science, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland
  6.Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
  7.ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
  8.Institute for Topological Insulators, Am Hubland, D-97074 Würzburg, Germany
- Author bio：
  
  Klaas-Jan Tielrooij (klaas.tielrooij@icn2.cat)
  Georgy V. Astakhov (g.astakhov@hzdr.de)
  Sergey Kovalev (s.kovalev@hzdr.de)
- Funds：
- DOI：10.1038/s41377-022-01008-y
  中图分类号：
- 纸质出版日期：2022-11-30，
  
  网络出版日期：2022-11-01，
  
  收稿日期：2022-06-29，
  
  修回日期：2022-09-07，
  
  录用日期：2022-10-08
- Accepted：
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Milliwatt terahertz harmonic generation from topological insulator metamaterials[J]. LSA, 2022,11(11):2766-2773.

Tielrooij, K. J. et al. Milliwatt terahertz harmonic generation from topological insulator metamaterials. Light: Science & Applications, 11, 2766-2773 (2022).
Milliwatt terahertz harmonic generation from topological insulator metamaterials[J]. LSA, 2022,11(11):2766-2773. DOI： 10.1038/s41377-022-01008-y.

Tielrooij, K. J. et al. Milliwatt terahertz harmonic generation from topological insulator metamaterials. Light: Science & Applications, 11, 2766-2773 (2022). DOI： 10.1038/s41377-022-01008-y.

摘要

Abstract

Achieving efficient

high-power harmonic generation in the terahertz spectral domain has technological applications

for example

in sixth generation (6G) communication networks. Massless Dirac fermions possess extremely large terahertz nonlinear susceptibilities and harmonic conversion efficiencies. However

the observed maximum generated harmonic power is limited

because of saturation effects at increasing incident powers

as shown recently for graphene. Here

we demonstrate room-temperature terahertz harmonic generation in a Bi

topological insulator and topological-insulator-grating metamaterial structures with surface-selective terahertz field enhancement. We obtain a third-harmonic power approaching the milliwatt range for an incident power of 75 mW—an improvement by two orders of magnitude compared to a benchmarked graphene sample. We establish a framework in which this exceptional performance is the result of thermodynamic harmonic generation by the massless topological surface states

benefiting from ultrafast dissipation of electronic heat via surface-bulk Coulomb interactions. These results are an important step towards on-chip terahertz (opto)electronic applications.

关键词

Keywords

references

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