Abstract
The authors theoretically demonstrate the terahertz beam shaping with metallic subwavelength holes array surrounded by concentric periodic grooves. High transmission and directional radiation can be obtained simultaneously for the resonant excitation of the surface wave in the combined structure. Finite-difference time-domain simulation results shows that the transmission mainly depends on the lattice constant of hole array and the features of incident surface around it, while the far-field angle distribution is dominated by the details of the output surface. This compact beam shaping structure is hoped to serve as a basic device for future terahertz systems.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
B.B. Hu, M.C. Nuss, Opt. Lett. 20, 1716 (1995)
D.L. Woolard, E.R. Brown, M. Pepper, M. Kemp, Proc. IEEE 93, 1722 (2005)
M.M. Awad, R.A. Cheville, Appl. Phys. Lett. 86, 221107 (2005)
E.D. Walsby, J. Alton, C. Worrall, H.E. Beere, D.A. Ritchie, D.R.S. Cumming, Opt. Lett. 32, 1141 (2007)
J.B. Pendry, L. Martin-Moreno, F.J. Garcia-Vidal, Science 305, 847 (2004)
A.P. Hibbins, B.R. Evans, J.R. Sambles, Science 308, 670 (2005)
S.A. Maier, S.R. Andrews, L. Martin-Moreno, F.J. Garcia-Vidal, Phys. Rev. Lett. 97, 176805 (2006)
H. Cao, A. Nahata, Opt. Express 12, 3664 (2004)
D. Qu, D. Grischkowsky, W. Zhang, Opt. Lett. 29, 896 (2004)
J.W. Lee, M.A. Seo, D.J. Park, D.S. Kim, S.C. Jeoung, Ch. Lienau, Q.-H. Park, P.C.M. Planken, Opt. Express 14, 1253 (2006)
C. Wang, C. Du, Y. Lv, X. Luo, Opt. Express 14, 5671 (2006)
H. Shi, C. Du, X. Luo, Appl. Phys. Lett. 91, 093111 (2007)
Y. Liu, H. Shi, C. Wang, C. Du, X. Luo, Opt. Express 16, 4487 (2008)
K. Ishihara, K. Ohashi, T. Ikari, H. Minamide, H. Yokoyama, J. Shikata, H. Ito, Appl. Phys. Lett. 89, 201120 (2006)
J.B. Abad, A. Degiron, F. Przybilla, C. Genet, F.J. Garcia-Vidal, L. Martin-Moreno, T.W. Ebbesen, Nature Phys. 2, 120 (2006)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liu, Y., Shi, H., Ma, J. et al. Directional terahertz radiation through groove-assisted hole array. Appl. Phys. B 92, 623–626 (2008). https://doi.org/10.1007/s00340-008-3141-0
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00340-008-3141-0