Chiral metamaterials: retrieval of the effective parameters with and without substrate

Optics Express
Rongkuo ZhaoC M Soukoulis

Abstract

After the prediction that strong enough optical activity may result in negative refraction and negative reflection, more and more artificial chiral metamaterials were designed and fabricated at difference frequency ranges from microwaves to optical waves. Therefore, a simple and robust method to retrieve the effective constitutive parameters for chiral metamaterials is urgently needed. Here, we analyze the wave propagation in chiral metamaterials and follow the regular retrieval procedure for ordinary metamaterials and apply it in chiral metamaterial slabs. Then based on the transfer matrix technique, the parameter retrieval is extended to treat samples with not only the substrate but also the top layers. After the parameter retrieval procedure, we take two examples to check our method and study how the substrate influences on the thin chiral metamaterials slabs. We find that the substrate may cause the homogeneous slab to be inhomogeneous, i.e. the reflections in forward and backward directions are different. However, the chiral metamaterial where the resonance element is embedded far away from the substrate is insensitive to the substrate.

References

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Citations

Jun 4, 2015·Nano Letters·Xinghui YinHarald Giessen
May 18, 2017·Nanomaterials·Xiaoliang MaXiangang Luo
Oct 31, 2012·Advanced Materials·Sang Soon OhOrtwin Hess
Mar 7, 2019·Light, Science & Applications·Alexander Y ZhuFederico Capasso
Dec 5, 2019·Scientific Reports·You-Zhong YuC T Chan
Apr 19, 2013·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Peng ZhangJian Duan
Dec 11, 2013·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Tiago J ArrudaAlexandre S Martinez
Apr 2, 2019·Optics Letters·Qilin HongShiqiao Qin
Mar 4, 2011·Optics Letters·Pi-Gang LuanXiang Zhang
Jul 10, 2019·Physical Review Letters·Sotiris DrouliasEleftherios N Economou
Jul 1, 2011·Optics Express·Kebin FanRichard D Averitt
Sep 17, 2013·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Davoud ZarifiAli Abdolali
Mar 3, 2020·Talanta·Majid SharifiMojtaba Falahati
Nov 13, 2020·ACS Nano·Katsuya TanakaIsabelle Staude
Sep 29, 2020·ACS Applied Materials & Interfaces·Ahsan Sarwar RanaJunsuk Rho

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