Nanomaterial-Based Sharp Focusing and Application

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanophotonics Materials and Devices".

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 1886

Special Issue Editors

Physical Department, Tomsk State University, 30 Lenin Avenue, 634050 Tomsk, Russia
Interests: biophotonics; antennas and propagation; photonics; optics; plasmonics; electromagnetics; diffraction; waves; antennas; web science; microwave; THz; solid immersion lens; mesoscale optics; computational electromagnetics; antenna; lenses; antenna arrays; electromagnetic and acoustic waves; acoustojet
Special Issues, Collections and Topics in MDPI journals
Radiophysical Department, Tomsk State University, 30 Lenin Avenue, 634050 Tomsk, Russia
Interests: photonis; unusual optical phenomenas; mesotronics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The diffraction limit, discovered in 1873 by Ernst Abbe, follows on from the general Heisenberg uncertainty relations, and is one of the limitations on the resolution in optical information systems, and on the minimum size on lab-on-chip systems. This fundamental limit can be overcome with the help of photonic–nanostructured devices—for example, the localized electromagnetic fields formed in the shadow surface of the mesoscale dielectric particle with a refractive index contrast near 2 can be modulated by introducing a nanohole structure at its rear surface, which makes it possible to improve the spatial resolution well beyond the stable immersion diffraction limit. On the other hand, various exotic optical phenomena, such as the focusing of light beyond the diffraction limit and nonlinear photonics, arise from the collective interaction of many nanostructures specially organized to produce an ordered artificial material.

This Special Issue aims to bring together fundamental and theoretical (including simulations) and experimental studies in the form of high-quality papers in the field of nanomaterial-based sharp focusing.

Topics will include, but are not limited to:

  • Sharp-edged structure
  • Sharp metal tip
  • Super-resolution focusing by nanostructured materials
  • Nanomaterial-based optical laser lithography beyond the diffraction limit
  • Design and fabrication nanoscale structures with desirable physical, scattering and morphological properties
  • Sensing, trapping, nano-manipulation and other applications of the nanomaterial-based sharp focusing devices

Prof. Dr. Igor V. Minin
Prof. Dr. Oleg V. Minin
Guest Editors

Manuscript Submission Information

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Keywords

  • nanostructured materials
  • sharp focusing
  • field localization
  • diffraction limit
  • collective interaction of nanostructures

Published Papers (1 paper)

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Research

15 pages, 6087 KiB  
Article
Optical Force on a Metal Nanorod Exerted by a Photonic Jet
by Bojian Wei, Shuhong Gong, Renxian Li, Igor V. Minin, Oleg V. Minin and Leke Lin
Nanomaterials 2022, 12(2), 251; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12020251 - 13 Jan 2022
Cited by 2 | Viewed by 1475
Abstract
In this article, we study the optical force exerted on nanorods. In recent years, the capture of micro-nanoparticles has been a frontier topic in optics. A Photonic Jet (PJ) is an emerging subwavelength beam with excellent application prospects. This paper studies the optical [...] Read more.
In this article, we study the optical force exerted on nanorods. In recent years, the capture of micro-nanoparticles has been a frontier topic in optics. A Photonic Jet (PJ) is an emerging subwavelength beam with excellent application prospects. This paper studies the optical force exerted by photonic jets generated by a plane wave illuminating a Generalized Luneburg Lens (GLLs) on nanorods. In the framework of the dipole approximation, the optical force on the nanorods is studied. The electric field of the photonic jet is calculated by the open-source software package DDSCAT developed based on the Discrete Dipole Approximation (DDA). In this paper, the effects of the nanorods’ orientation and dielectric constant on the transverse force Fx and longitudinal force Fy are analyzed. Numerical results show that the maximum value of the positive force and the negative force are equal and appear alternately at the position of the photonic jet. Therefore, to capture anisotropic nanoscale-geometries (nanorods), it is necessary to adjust the position of GLLs continuously. It is worth emphasizing that manipulations with nanorods will make it possible to create new materials at the nanoscale. Full article
(This article belongs to the Special Issue Nanomaterial-Based Sharp Focusing and Application)
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