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Planar Refraction and Lensing of Highly Confined Polaritons in Anisotropic Media by Duan, J. (author);Álvarez-Pérez, G. (author);Tresguerres-Mata, A. I. F. (author);Taboada-Gutiérrez, J. (author);Voronin, K. V. (author);Bylinkin, A. (author);Chang, B. (author);Xiao, S. (author);Liu, S. (author);Edgar, J. H. (author);Martín, J. I. (author);Volkov, V. S. (author);Hillenbrand, R. (author);Martín-Sánchez, J. (author);Nikitin, A. Y. (author);Alonso-González, P. (author) is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Planar Refraction and Lensing of Highly Confined Polaritons in Anisotropic Media about?

Refraction between isotropic media is characterized by light bending towards the normal to the boundary when passing from a low- to a high-refractive-index medium. However, refraction between anisotropic media is a more exotic phenomenon which remains barely investigated, particularly at the nanoscale. Here, we visualize and comprehensively study the general case of refraction of electromagnetic waves between two strongly anisotropic (hyperbolic) media, and we do it with the use of nanoscale-confined polaritons in a natural medium: α-MoO~3~. The refracted polaritons exhibit non-intuitive directions of propagation as they traverse planar nanoprisms, enabling to unveil an exotic optical effect: bending-free refraction. Furthermore, we develop an in-plane refractive hyperlens, yielding foci as small as λ~p~/6, being λ~p~ the polariton wavelength (λ~0~/50 compared to the wavelength of free-space light). Our results set the grounds for planar nano-optics in strongly anisotropic media, with potential for effective control of the flow of energy at the nanoscale.

Who reads Planar Refraction and Lensing of Highly Confined Polaritons in Anisotropic Media?

It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.

Author
Duan, J. (author);Álvarez-Pérez, G. (author);Tresguerres-Mata, A. I. F. (author);Taboada-Gutiérrez, J. (author);Voronin, K. V. (author);Bylinkin, A. (author);Chang, B. (author);Xiao, S. (author);Liu, S. (author);Edgar, J. H. (author);Martín, J. I. (author);Volkov, V. S. (author);Hillenbrand, R. (author);Martín-Sánchez, J. (author);Nikitin, A. Y. (author);Alonso-González, P. (author)
Publisher
Springer Science and Business Media LLC
Published
2021
Language
EN
Field
Biochemistry, Genetics and Molecular Biology (Life Sciences)

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