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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2019, Volume 110, Issue 2, Pages 99–105
DOI: https://doi.org/10.1134/S0370274X19140066
(Mi jetpl5955)
 

This article is cited in 1 scientific paper (total in 1 paper)

OPTICS AND NUCLEAR PHYSICS

Subwavelength focusing of light reflected from a silver surface with a periodic structure

O. N. Gadomsky, D. O. Musich

Ulyanovsk State University, Ulyanovsk, Russia
Full-text PDF (349 kB) Citations (1)
References:
Abstract: It is demonstrated that the reflection of light from the surface of silver with a periodic structure in the form of a one-dimensional grating can lead to subwavelength focusing of light near the surface. Under these conditions, the diffraction limit on spatial resolution is given by the expression $\Delta x=a_0/2$, where $a_0$ is the grating period. For short grating periods (about $10$ nm), this limit is much smaller than the classical diffraction limit $\Delta z=\lambda/2n$ (where $n$ is the refractive index of an infinite optical medium and $\lambda$ is the wavelength). It is shown that, with an increase in the depth of the grating profile, the field strength of the diffracted waves near the silver surface becomes significantly higher than that of the specularly reflected wave.
Received: 03.06.2019
Revised: 03.06.2019
Accepted: 12.06.2019
English version:
Journal of Experimental and Theoretical Physics Letters, 2019, Volume 110, Issue 2, Pages 115–120
DOI: https://doi.org/10.1134/S0021364019140078
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: O. N. Gadomsky, D. O. Musich, “Subwavelength focusing of light reflected from a silver surface with a periodic structure”, Pis'ma v Zh. Èksper. Teoret. Fiz., 110:2 (2019), 99–105; JETP Letters, 110:2 (2019), 115–120
Citation in format AMSBIB
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  • https://www.mathnet.ru/eng/jetpl/v110/i2/p99
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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