Advertisement

Applied Physics A

, 122:157 | Cite as

Terahertz wave emission from plasmonic chiral metasurfaces

  • Takahiro Matsui
  • Satoshi TomitaEmail author
  • Motoki Asai
  • Yuzuru Tadokoro
  • Keisuke Takano
  • Makoto Nakajima
  • Masanori Hangyo
  • Hisao Yanagi
Article
Part of the following topical collections:
  1. Advanced Metamaterials and Nanophotonics

Abstract

Plasmonic chiral metasurfaces with pinwheel-like structures are fabricated on silver films using a focused ion-beam milling technique. In time-domain spectroscopy, we observe terahertz (THz) wave emission from metasurfaces irradiated by a near-infrared Ti:sapphire ultrashort pulsed laser. The origin of the THz wave generation is likely to be tunnelling ionization accompanied with photoelectron acceleration by ponderomotive force. Numerical simulation is carried out toward improvement of the chiral metasurfaces for better emission of circularly polarized THz waves.

Keywords

Electric Field Distribution Ponderomotive Force Asymmetric Mode Optical Parametric Amplifier Show Reflection Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors acknowledge valuable contribution by K. Miyake in the FIB milling and fruitful discussion with K. Iwami and S. Ohno. English proofreading by L. McDowell is also acknowledged. This work was supported by MEXT/JSPS KAKENHI (Grants Nos. 22109003, 22109005 and 26287065).

References

  1. 1.
    N. Yu et al., Light propagation with phase discontinuities: generalized laws of reflection and refraction. Science 334, 333–337 (2011)ADSCrossRefGoogle Scholar
  2. 2.
    N. Yu et al., A broadband, background-free quarter-wave plate based on plasmonic metasurfaces. Nano Lett. 12, 6328–6333 (2012)ADSCrossRefGoogle Scholar
  3. 3.
    D.K. Polyushkin et al., THz generation from plasmonic nanoparticle arrays. Nano Lett. 11, 4718–4724 (2011)ADSCrossRefGoogle Scholar
  4. 4.
    G. Ramakrishnan, P.C.M. Planken, Percolation-enhanced generation of terahertz pulses by optical rectification on ultrathin gold films. Opt. Lett. 36, 2572–2574 (2011)ADSCrossRefGoogle Scholar
  5. 5.
    L. Luo et al., Broadband terahertz generation from metamaterials. Nat. Commun. 5, 3055 (2014)ADSGoogle Scholar
  6. 6.
    H. Suo et al., Polarization property of terahertz wave emission from gammadion-type photoconductive antennas. Appl. Phys. Lett. 103, 111106 (2013)ADSCrossRefGoogle Scholar
  7. 7.
    K. Konishi et al., Circularly polarized light emission from semiconductor planar chiral nanostructures. Phys. Rev. Lett. 106, 057402 (2011)ADSCrossRefGoogle Scholar
  8. 8.
    D.K. Polyushkin et al., Mechanisms of THz generation from silver nanoparticle and nanohole arrays illuminated by 100 fs pulses of infrared light. Phys. Rev. B 89, 125426 (2014)ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Takahiro Matsui
    • 1
  • Satoshi Tomita
    • 1
    Email author
  • Motoki Asai
    • 2
  • Yuzuru Tadokoro
    • 2
  • Keisuke Takano
    • 2
  • Makoto Nakajima
    • 2
  • Masanori Hangyo
    • 2
  • Hisao Yanagi
    • 1
  1. 1.Graduate School of Materials ScienceNara Institute of Science and TechnologyIkomaJapan
  2. 2.Institute of Laser EngineeringOsaka UniversitySuitaJapan

Personalised recommendations