Title: The origin of second harmonic generation hotspots in chiral optical metamaterials [Invited]
Authors: V. K. Valev, Ventsislav ×
Zheng, Xuezhi
Biris, C. G
Silhanek, Alejandro
Volskiy, Vladimir
De Clercq, Bertrand
Aktsipetrov, O. A
Ameloot, Marcel
Panoiu, N. C
Vandenbosch, Guy
Moshchalkov, Victor #
Issue Date: May-2011
Publisher: Optical soc amer
Series Title: Optical materials express vol:1 issue:1 pages:36-45
Abstract: Novel ways to detect the handedness in chiral optical metamaterials by means of the second harmonic generation (SHG) process have recently been proposed. However, the precise origin of the SHG emission has yet to be unambiguously established. In this paper, we present computational simulations of both the electric currents and the electromagnetic fields in chiral planar metamaterials, at the fundamental frequency (FF), and discuss the implications of our results on the characteristics of experimentally measured SHG. In particular, we show that the results of our numerical simulations are in good agreement with the experimental mapping of SHG sources. Thus, the SHG in these metamaterials can be attributed to a strong local enhancement of the electromagnetic fields at the FF, which depends on the particular structure of the patterned metamaterial. (C) 2011 Optical Society of America
ISSN: 2159-3930
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
Molecular Imaging and Photonics
ESAT- TELEMIC, Telecommunications and Microwaves
× corresponding author
# (joint) last author

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