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Nanomaterials
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Nanophotonic: Structure, Devices and System
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Nanophotonic: Structure, Devices and System

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

Deadline for manuscript submissions: 16 May 2025 | Viewed by 5316

Special Issue Editor

Dr. Jiangluqi Song

E-Mail Website
Guest Editor
School of Physics, Xidian University, Xi’an 710071, China
Interests: nanocrystals; plasmonics; nano-theranostics

Special Issue Information

Dear Colleagues,

As an interdisciplinary field that involves manipulating light at the nanoscale, nanophotonics has emerged as a key technology driving the development of various advanced functions and applications. Through precise control over the interactions between light and matter, nanophotonics not only plays a significant role in traditional communication and sensing technologies but also shows immense potential in areas such as energy conversion, disease diagnosis, and treatment. Nanophotonic structures offer new design paradigms for solar cells and photocatalysts, paving the way for the efficient use of energy and sustainable development. In the medical field, nanophotonics provides a range of innovative biomedical imaging techniques, high-sensitivity biomarker detection methods, and precise phototherapy strategies, significantly advancing personalized medicine and precision treatment. Additionally, nanophotonics facilitates the development of nanostructures and materials with novel optoelectronic functions, offering strong technical support for the miniaturization and performance optimization of optoelectronic devices.

This Special Issue aims to highlight the latest advances in nanophotonics and material science, and we welcome researchers involved in the nanophotonics community to contribute original research papers or review articles to this Special Issue.

Dr. Jiangluqi Song
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanophotonics
  • nanostructures
  • plasmonics
  • nanotheranostics
  • photonic devices
  • nanofabrication

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (4 papers)

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Research

10 pages, 7382 KiB  
Article
Near-Field Nano-Focusing and Nano-Imaging of Dielectric Microparticle Lenses
by Jinzhong Ling, Yucheng Wang, Jinkun Guo, Xin Liu and Xiaorui Wang
Nanomaterials 2024, 14(23), 1974; https://doi.org/10.3390/nano14231974 - 9 Dec 2024
Cited by 1 | Viewed by 856
Abstract
Compared with traditional far-field objective lenses, microparticle lenses have a distinct advantage of nonobservance of the diffraction limit, which has attracted extensive attention for its application in subwavelength photolithography and super-resolution imaging. In this article, a complete simulation model for a microparticle lens [...] Read more.
Compared with traditional far-field objective lenses, microparticle lenses have a distinct advantage of nonobservance of the diffraction limit, which has attracted extensive attention for its application in subwavelength photolithography and super-resolution imaging. In this article, a complete simulation model for a microparticle lens assisted microscopic imaging system was built to analyze the imaging characteristics of any shape of microparticle lens. With this model, we simulated the resolution of a conventional objective lens, a microsphere lens and a hollow microsphere lens, which verified the correctness of our simulation model and demonstrated the super-resolution imaging ability of microsphere lenses. Secondly, the focusing and imaging characteristics of four typical microparticle lenses are illustrated, and how the focal spot affects imaging resolution and imaging quality is analyzed. Upon this conclusion, we reformed and upgraded the microsphere lens with several parameters for smaller focal spots and higher imaging resolution. Finally, three types of microparticle lenses were designed through the optimized parameters and their focusing and imaging characteristics were demonstrated with a minimum FWHM of 140 nm at the focal plane and a highest imaging resolution around 70 nm (~λ/6). Our work opens up a new perspective of super-resolution imaging with near-field microparticle lens. Full article
(This article belongs to the Special Issue Nanophotonic: Structure, Devices and System)
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7 pages, 1321 KiB  
Article
1 × 2 Graphene Surface Plasmon Waveguide Beam Splitter Based on Self-Imaging
by Liu Lu, Peng Xu, Liang Zhang, Jia Le and Daifen Chen
Nanomaterials 2024, 14(18), 1538; https://doi.org/10.3390/nano14181538 - 22 Sep 2024
Cited by 1 | Viewed by 1180
Abstract
Based on the principle of self-imaging, a 1 × 2 graphene waveguide beam splitter is proposed in this work, which can split the graphene surface plasmons excited by far-infrared light. The multimode interference process in the graphene waveguide is analyzed by guided-mode propagation [...] Read more.
Based on the principle of self-imaging, a 1 × 2 graphene waveguide beam splitter is proposed in this work, which can split the graphene surface plasmons excited by far-infrared light. The multimode interference process in the graphene waveguide is analyzed by guided-mode propagation analysis (MPA), and then the imaging position is calculated. The simulation results show that the incident beam can be obviously divided into two parts by the self-imaging of the graphene surface plasmon. In addition, the influences of the excited light wavelength, Fermi level, dielectric environment on the transmission efficiency are studied, which provide a reference for the research of graphene waveguide related devices. Full article
(This article belongs to the Special Issue Nanophotonic: Structure, Devices and System)
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10 pages, 2868 KiB  
Article
Improved UV Photoresponse Performance of ZnO Nanowire Array Photodetector via Effective Pt Nanoparticle Coupling
by Nan Wang, Jianbo Li, Chong Wang, Xiaoqi Zhang, Song Ding, Zexuan Guo, Yuhan Duan and Dayong Jiang
Nanomaterials 2024, 14(17), 1442; https://doi.org/10.3390/nano14171442 - 4 Sep 2024
Cited by 4 | Viewed by 1414
Abstract
Ultraviolet (UV) photodetectors (PDs) based on nanowire (NW) hold significant promise for applications in fire detection, optical communication, and environmental monitoring. As optoelectronic devices evolve towards lower dimensionality, multifunctionality, and integrability, multicolor PDs have become a research hotspot in optics and electronic information. [...] Read more.
Ultraviolet (UV) photodetectors (PDs) based on nanowire (NW) hold significant promise for applications in fire detection, optical communication, and environmental monitoring. As optoelectronic devices evolve towards lower dimensionality, multifunctionality, and integrability, multicolor PDs have become a research hotspot in optics and electronic information. This study investigates the enhancement of detection capability in a light-trapping ZnO NW array through modification with Pt nanoparticles (NPs) via magnetron sputtering and hydrothermal synthesis. The optimized PD exhibits superior performance, achieving a responsivity of 12.49 A/W, detectivity of 4.07 × 1012 Jones, and external quantum efficiency (EQE) of 4.19 × 103%, respectively. In addition, the Pt NPs/ZnO NW/ZnO PD maintains spectral selectivity in the UV region. These findings show the pivotal role of Pt NPs in enhancing photodetection performance through their strong light absorption and scattering properties. This improvement is associated with localized surface plasmon resonance induced by the Pt NPs, leading to enhanced incident light and interfacial charge separation for the specialized configurations of the nanodevice. Utilizing metal NPs for device modification represents a breakthrough that positively affects the preparation of high-performance ZnO-based UV PDs. Full article
(This article belongs to the Special Issue Nanophotonic: Structure, Devices and System)
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10 pages, 3861 KiB  
Article
Tailoring of Circularly Polarized Beams Employing Bound States in the Continuum in a Designed Photonic Crystal Metasurface Nanostructure
by Chunhao Xu, Minghao Chao, Zhizhong Liu, Qingsong Liu, Wenjing Zhang, Lingyun Zhuang, Bo Cheng, Botao Jiang, Jietao Liu and Guofeng Song
Nanomaterials 2024, 14(17), 1405; https://doi.org/10.3390/nano14171405 - 28 Aug 2024
Cited by 1 | Viewed by 1335
Abstract
We propose a photonic crystal (PC) nanostructure that combines bound states In the continuum (BIC) with a high-quality factor up to 107 for emitting circularly polarized beams. We break the in-plane inversion symmetry of the unit cell by tilting the triangular hole [...] Read more.
We propose a photonic crystal (PC) nanostructure that combines bound states In the continuum (BIC) with a high-quality factor up to 107 for emitting circularly polarized beams. We break the in-plane inversion symmetry of the unit cell by tilting the triangular hole of the hexagonal lattice, resulting in the conversion of a symmetrically protected BIC to a quasi-BIC. High-quality circularly polarized light is obtained efficiently by adjusting the tilt angles of the hole and the thickness of the PC layer. By changing the hole’s geometry in the unit cell, the Q-factor of circularly polarized light is further improved. The quality factor can be adjusted from 6.0 × 103 to 1.7 × 107 by deliberately changing the shape of the holes. Notably, the proposed nanostructure exhibits a large bandgap, which significantly facilitates the generation of stable single-mode resonance. The proposed structure is anticipated to have practical applications in the field of laser technology, particularly in the advancement of low-threshold PC surface emitting lasers (PCSELs). Full article
(This article belongs to the Special Issue Nanophotonic: Structure, Devices and System)
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