Nanophotonic and Optical Nanomaterials

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 April 2022) | Viewed by 14389

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Guest Editor
Research School of Physics, Australian National University, Canberra, ACT 2601, Australia
Interests: topological photonics; nonlinear optics; nanophotonics
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Special Issue Information

Dear Colleagues,

The rapidly growing demands of modern technologies in globally important applications, such as communication infrastructure, data processing and information storage, biomedical diagnostics and super-imaging, have launched a race for materials with highly tunable and controllable optical response in subwavelength dimensions. Recent progress in nanotechnologies and manufacturing permits fabricating artificial nanostructures with pre-engineered properties exhibiting strong light-matter interaction. This Special Issue aims to highlight the latest advances in nanophotonics and material science, including developments of nanomaterials and smart nanoscale designs which bring disruptively new opportunities to control light and could have important implications for novel photonic metadevices operating beyond the diffraction limit. We also welcome contributions studying resonant effects with nanostructures, optical nonlinearities, interaction of photons with nanostructured media, topological and quantum states of light.

Dr. Daria A. Smirnova
Guest Editor

Manuscript Submission Information

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Keywords

  • Nanostructures
  • Plasmonics
  • Nanofabrication
  • Nonlinear nanophotonics
  • Metasurfaces
  • Optical resonances and nanocavities
  • Quantum emitters
  • Active and light-emitting materials
  • Two-dimensional materials

Published Papers (6 papers)

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Research

10 pages, 2112 KiB  
Article
Meta-Optics-Empowered Switchable Integrated Mode Converter Based on the Adjoint Method
by Yingli Ha, Yinghui Guo, Mingbo Pu, Mingfeng Xu, Xiong Li, Xiaoliang Ma, Fang Zou and Xiangang Luo
Nanomaterials 2022, 12(19), 3395; https://doi.org/10.3390/nano12193395 - 28 Sep 2022
Cited by 6 | Viewed by 1473
Abstract
Monolithic integrated mode converters with high integration are essential to photonic integrated circuits (PICs), and they are widely used in next-generation optical communications and complex quantum systems. It is expected that PICs will become more miniaturized, multifunctional, and intelligent with the development of [...] Read more.
Monolithic integrated mode converters with high integration are essential to photonic integrated circuits (PICs), and they are widely used in next-generation optical communications and complex quantum systems. It is expected that PICs will become more miniaturized, multifunctional, and intelligent with the development of micro/nano-technology. The increase in design space makes it difficult to realize high-performance device design based on traditional parameter sweeping or heuristic design, especially in the optimal design of reconfigurable PIC devices. Combining the mode coupling theory and adjoint calculation method, we proposed a design method for a switchable mode converter. The device could realize the transmission of TE0 mode and the conversion from TE0 to TE1 mode with a footprint of 0.9 × 7.5 μm2 based on the phase change materials (PCMs). We also found that the mode purity could reach 78.2% in both states at the working wavelength of 1.55 μm. The designed method will provide a new impetus for programmable photonic integrated devices and find broad application prospects in communication, optical neural networks, and sensing. Full article
(This article belongs to the Special Issue Nanophotonic and Optical Nanomaterials)
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9 pages, 6171 KiB  
Article
Nature of the Poynting Vector Field Singularities in Resonant Light Scattering by Nanoparticles
by Michael I. Tribelsky and Boris Y. Rubinstein
Nanomaterials 2022, 12(11), 1878; https://doi.org/10.3390/nano12111878 - 31 May 2022
Cited by 4 | Viewed by 1677
Abstract
Singularities of the Poynting vector field subwavelength patterns in resonant light scattering by nanoparticles are discussed and classified. There are two generic types of the singularities, namely, (i) the singularities related to the vanishing of the magnetic (and/or electric) field at the singular [...] Read more.
Singularities of the Poynting vector field subwavelength patterns in resonant light scattering by nanoparticles are discussed and classified. There are two generic types of the singularities, namely, (i) the singularities related to the vanishing of the magnetic (and/or electric) field at the singular points and (ii) the singularities related to the formation of standing waves in proximity to the singular points. The connection of these types of singularities to the topology of the singular points, space dimension (3D vs. 2D), and energy conservation law are revealed. In particular, it is shown that in 2D cases in non-dissipative media, the energy conservation reduces the possible types of generic singular points to saddles and centers only. In 3D cases, a universal expression connecting different components of the Poynting vector and valid for any generic singularities is derived and numerically checked for various types of singular points. Full article
(This article belongs to the Special Issue Nanophotonic and Optical Nanomaterials)
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11 pages, 2451 KiB  
Article
High Color Purity Plasmonic Color Filter by One-Dimensional Photonic Crystals
by Jun Yong Kim, Hyo Jong Cho and Yun Seon Do
Nanomaterials 2022, 12(10), 1694; https://doi.org/10.3390/nano12101694 - 16 May 2022
Cited by 2 | Viewed by 1705
Abstract
Structural colors have been reported instead of conventional dye- or pigment-based color filters. Color selectivity can degrade as structure-based optical resonances are accompanied by several resonance modes. In this work, we suggest a simple and effective design of the plasmonic color filter (PCF) [...] Read more.
Structural colors have been reported instead of conventional dye- or pigment-based color filters. Color selectivity can degrade as structure-based optical resonances are accompanied by several resonance modes. In this work, we suggest a simple and effective design of the plasmonic color filter (PCF) that integrated the PCF with the one-dimensional (1D) photonic crystal (PhC). The introduced PhC creates an optical band gap and suppresses undesired peaks of the PCF caused by the high-order resonance mode. Finally, the suggested structure provides a high color purity. This study can be a guideline for technology that replaces conventional color filters. Full article
(This article belongs to the Special Issue Nanophotonic and Optical Nanomaterials)
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10 pages, 33527 KiB  
Article
Silicon-Based All-Dielectric Metasurface on an Iron Garnet Film for Efficient Magneto-Optical Light Modulation in Near IR Range
by Denis M. Krichevsky, Shuang Xia, Mikhail P. Mandrik, Daria O. Ignatyeva, Lei Bi and Vladimir I. Belotelov
Nanomaterials 2021, 11(11), 2926; https://doi.org/10.3390/nano11112926 - 01 Nov 2021
Cited by 5 | Viewed by 2188
Abstract
All-dielectric nanostructures provide a unique low-loss platform for efficiently increasing light-matter interaction via excitation of the localized or propagating optical modes. Here, we report on the transverse magneto-optical Kerr effect enhancement in an all-dielectric metasurface based on a two-dimensional array of Si nanodisks [...] Read more.
All-dielectric nanostructures provide a unique low-loss platform for efficiently increasing light-matter interaction via excitation of the localized or propagating optical modes. Here, we report on the transverse magneto-optical Kerr effect enhancement in an all-dielectric metasurface based on a two-dimensional array of Si nanodisks on a cerium substituted dysprosium iron garnet thin film. We observed up to 15% light intensity modulation under TM modes excitation. The observed magneto-optical effect is nearly independent of the rotation of the light incidence plane with respect to the metasurface. Being compatible with conventional semiconductor technology, our structure holds promise for device applications, such as light modulators, magnetic and chemical sensors. Full article
(This article belongs to the Special Issue Nanophotonic and Optical Nanomaterials)
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14 pages, 20538 KiB  
Article
Ultrasound-Assisted Synthesis of Luminescent Micro- and Nanocrystalline Eu-Based MOFs as Luminescent Probes for Heavy Metal Ions
by Stefaniia S. Kolesnik, Viktor G. Nosov, Ilya E. Kolesnikov, Evgenia M. Khairullina, Ilya I. Tumkin, Aleksandra A. Vidyakina, Alevtina A. Sysoeva, Mikhail N. Ryazantsev, Maxim S. Panov, Vasiliy D. Khripun, Nikita A. Bogachev, Mikhail Yu. Skripkin and Andrey S. Mereshchenko
Nanomaterials 2021, 11(9), 2448; https://doi.org/10.3390/nano11092448 - 20 Sep 2021
Cited by 8 | Viewed by 3783
Abstract
The luminescent coarse-, micro- and nanocrystalline europium(III) terephthalate tetrahydrate (Eu2bdc3·4H2O) metal-organic frameworks were synthesized by the ultrasound-assisted wet-chemical method. Electron micrographs show that the europium(III) terephthalate microparticles are 7 μm long leaf-like plates. According to the dynamic [...] Read more.
The luminescent coarse-, micro- and nanocrystalline europium(III) terephthalate tetrahydrate (Eu2bdc3·4H2O) metal-organic frameworks were synthesized by the ultrasound-assisted wet-chemical method. Electron micrographs show that the europium(III) terephthalate microparticles are 7 μm long leaf-like plates. According to the dynamic light scattering technique, the average size of the Eu2bdc3·4H2O nanoparticles is equal to about 8 ± 2 nm. Thereby, the reported Eu2bdc3·4H2O nanoparticles are the smallest nanosized rare-earth-based MOF crystals, to the best of our knowledge. The synthesized materials demonstrate red emission due to the 5D07FJ transitions of Eu3+ upon 250 nm excitation into 1ππ* state of the terephthalate ion. Size reduction results in broadened emission bands, an increase in the non-radiative rate constants and a decrease in both the quantum efficiency of the 5D0 level and Eu3+ and the luminescence quantum yields. Cu2+, Cr3+, and Fe3+ ions efficiently and selectively quench the luminescence of nanocrystalline europium(III) terephthalate, which makes it a prospective material for luminescent probes to monitor these ions in waste and drinking water. Full article
(This article belongs to the Special Issue Nanophotonic and Optical Nanomaterials)
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8 pages, 1746 KiB  
Article
Funneling Spontaneous Emission into Waveguides via Epsilon-Near-Zero Metamaterials
by M. Channab, C. F. Pirri and A. Angelini
Nanomaterials 2021, 11(6), 1410; https://doi.org/10.3390/nano11061410 - 27 May 2021
Cited by 2 | Viewed by 2512
Abstract
In this work, we discuss the use of epsilon-near-zero (ENZ) metamaterials to efficiently couple light radiated by a dipolar source to an in-plane waveguide. We exploit both enhanced and directional emission provided by ENZ metamaterials to optimize the injection of light into the [...] Read more.
In this work, we discuss the use of epsilon-near-zero (ENZ) metamaterials to efficiently couple light radiated by a dipolar source to an in-plane waveguide. We exploit both enhanced and directional emission provided by ENZ metamaterials to optimize the injection of light into the waveguide by tuning the metal fill factor. We show that a net increase in intensity injected into the waveguide with respect to the total power radiated by the isolated dipole can be achieved in experimentally feasible conditions. We think the proposed system may open up new opportunities for several optical applications and integrated technologies, especially for those limited by outcoupling efficiency and emission rate. Full article
(This article belongs to the Special Issue Nanophotonic and Optical Nanomaterials)
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