Vol. 14, no.1, 2022


Optical Metamaterial with Near-Zero Random Refractive Index

Oleg N. Gadomsky, Irina V. Gadomskaya, Dmitrii O. Musich

Ulyanovsk State University, https://www.ulsu.ru/
Ulyanovsk 432017, Russian Federation
E-mail: gadomsky@mail.ru, gadomskaya@mail.ru, musich@mail.ru
Nickolay M. Ushakov
Kotelnikov IRE of RAS, Saratov branch, http://www.cplire.ru/rus/sfire/
Saratov 410019, Russian Federation
Chernyshevsky Saratov State University, https://www.sgu.ru/
Saratov 410012, Russian Federation
E-mail: nmu@bk.ru

Received Februar 15, 2021, peer-reviewed Februar 22, 2021, accepted Februar 29, 2021

Abstract: A relation is obtained for the complex refractive index of an optical metamaterial, taking into account the structural factor that determines the discrete distribution of inclusions in the composite. It is shown that a small random change in the structure factor leads to a significant decrease in the refractive index of the metamaterial in a wide range of visible and IR wavelengths. The obtained theoretical results are confirmed by experiment on the example of a synthesized metamaterial from a polymer matrix with silver nanoparticles.

Keywords: optical metamaterial, refractive index close to zero, structure factor, silver nanoparticles, polymethyl methacrylate

UDC 546.722+546.271

RENSIT, 2022, 14(1):39-46 DOI: 10.17725/rensit.2022.14.039.

Full-text electronic version of this article - web site http://en.rensit.ru/vypuski/article/431/14(1)39-46e.pdf