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Optically active Babinet planar metamaterial film for terahertz polarization manipulation
Author(s) -
Zalkovskij Maksim,
Malureanu Radu,
Kremers Christian,
Chigrin Dmitry N.,
Novitsky Andey,
Zhukovsky Sergei,
Tang Peter T.,
Jepsen Peter U.,
Lavrinenko Andrei V.
Publication year - 2013
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201300034
Subject(s) - metamaterial , terahertz radiation , planar , materials science , optics , resonator , optoelectronics , fabrication , optical power , polarization (electrochemistry) , physics , chemistry , computer science , laser , medicine , computer graphics (images) , alternative medicine , pathology
A planar Babinet‐inverted dimer metamaterial possessing strong optical activity is proposed and characterized. An original fabrication method to produce large area (up to several cm 2 ) freely suspended flexible metallic membranes is implemented to fabricate the metamaterial. Its optical properties are characterized by terahertz time‐domain spectroscopy, revealing anisotropic transmission with high optical activity. A simple coupled resonator model is applied to explain the principal optical features of the dimers, with predictive power of positions and number of resonances through a parametrical model. The model is validated for correct polarization‐dependent quantitative results on the optical activity in transmission spectra. The fabrication method presented in this work as well as the slit dimer design has great potential for exploitation in terahertz optics.