DOI: https://doi.org/10.3103/S073527271204005X
Open Access Open Access  Restricted Access Subscription Access
Two closely located flat identical chiral irises

Ultra-compact 90° twist based on a pair of two closely placed flat chiral irises

A. A. Kirilenko, N. G. Kolmakova, S. A. Prikolotin

Abstract


A new approach to the task of rotating the polarization plane of planar electromagnetic wave or dominant modes in a square (circular) waveguide is suggested. The physical idea is based on strong interaction of near-fields in two flat chiral irises with right and left rotation located at distances that are much less than the wavelength. Due to multi-mode character of the interaction it is possible to provide the several percent bandwidth when rotating the polarization plane by 90° at the level not worse than –0.1 dB.


Keywords


optical activity; change of the polarization; 2D chirality; rotation symmetry; waveguide iris; square waveguide

Full Text:

PDF

References


V. R. Litvinov, L. A. Rud, and E. A. Sverdlenko, “Compact 90° Twists into Rectangular Waveguides,” Izv. Vyssh. Uchebn. Zaved., Radioelektron. 53 (3), 50 (2010) [Radioelectron. Commun. Syst. 53 (3), 162 (2010)].

R. А. Silin and V. P. Sazonov, Slow-Down Systems (Sov. Radio, Moscow, 1966) [in Russian].

B. Z. Katsenelebaum, Ye. N. Korshunova, А. N. Sivov, and А. D. Shatrov, “Chiral electrodynamic objects,” Physics – Uspekhi 167, No. 11, 1201 (1997).

А. А. Kirilenko, N. G. Kolmakova, and S. L. Prosvirin, “Flat chiral irises in a square waveguide and evidence of “optical activity,” Radiofiz. Radioastron. 16, No. 1, 70 (2011).

M. Wegener and N. Zheludev, “Artificial Chiral Materials,” J. Opt. A: Pure Appl. Opt. 11, 070201 (2009).

E. Plum, V. A. Fedotov, A. S. Schwanecke, et al., “Giant optical gyrotropy due to electromagnetic coupling,” Appl. Phys. Lett. 90, 223113 (2007).

Z. Li, R. Zhao, T. Koschny, et al., “Chiral metamaterials with negative refractive index based on four “U” split ring resonators,” Appl. Phys. Lett. 97, 081901 (2010).

S. Cornblit, Microwave Optics (Svyaz’, Moscow, 1980) [in Russian].

S. I. Maslovki, D. K. Morits, S. A. Tretyakov, “Symmetry and reciprocity constraints on diffraction by gratings of quasi-planar particles,” J. Opt. A: Pure Appl. Opt. 11, 074004 (2009).







© Radioelectronics and Communications Systems, 2004–2020
When you copy an active link to the material is required
ISSN 1934-8061 (Online), ISSN 0735-2727 (Print)
tel./fax +38044 204-82-31, 204-90-41