Nonlinear Optical Properties and Applications of 2D Materials

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: 20 August 2025 | Viewed by 911

Special Issue Editors


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Guest Editor
Centro de Investigación en Materiales Avanzados S. C., Miguel de Cervantes 120, Chihuahua 31136, Mexico
Interests: synthesis of piezoelectric nanomaterials; numerical simulation, design, fabrication, and characterization of optical properties of photonic crystals; photonic sensors; electro-optic, photoconductor, and photorefractive materials; non-linear optics

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Guest Editor Assistant
School of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Egnatia Street, University Campus, 54124 Thessaloniki, Greece
Interests: nonlinear; nanophotonics; photonics; plasmonics; graphene-based structures; optical metamaterials
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Special Issue Information

Dear Colleagues,

We invite you to join the project of the Special Issue “Nonlinear Optical Properties and Applications of 2D Materials” of the journal Crystals. We aim to compile a set of stimulating and high-quality articles to show the community, both academics and people around the world, the new developments on which you and we are working on in our respective institutions.

As you know, 2D materials are some of the most exciting and frontier research subjects in materials science due to their great potential in technological applications that cover the fields of optoelectronics, nanophotonics, devices based on graphene oxide, nanocrystal materials, nanosheets, heterojunctions, monoatomic layers, solar cells, and thin films, to mention a few. A wide diversity of techniques and procedures to synthesize 2D materials, some very cheap and easy to perform, constitute one of the advantages over other types of materials. However, regardless of how simple or complex synthesizing 2D materials can be, many of the novel technological developments that will come in the future will be based on 2D materials. Some of these reasons are the following: 2D materials such as graphene structures, with their high electrical conductivity, low density, and high flexibility, can be used in nanoelectronics, biosensing, and high-frequency devices. On the other hand, 2D photonic materials can confine, trap, and modulate the propagation of a light beam, which are effects that can used in biosensing, signal amplification, and information processing. Hetero-junctions based on thin films can be very useful in the development of high-transmittance diodes or the fabrication of new-generation solar cells. Nevertheless, there is a demand in many other technological or scientific fields for the integration of 2D materials in novel devices. 

Dr. José Guadalupe Murillo-Ramírez
Dr. Thomas Christopoulos
Guest Editors

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Keywords

  • monoatomic layers
  • graphene oxide
  • photonic materials
  • heterojunctions
  • thin films

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Published Papers (1 paper)

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Research

13 pages, 5165 KiB  
Article
All-Optical Switching Using Cavity Modes in Photonic Crystals Embedded with Hyperbolic Metamaterials
by Chang Liu, Dong Wei, Xiaochun Lin and Yaoxian Zheng
Crystals 2024, 14(9), 787; https://doi.org/10.3390/cryst14090787 - 4 Sep 2024
Viewed by 587
Abstract
Hyperbolic metamaterials (HMMs) are highly anisotropic materials with the unique property of generating electromagnetic modes. Understanding how these materials can be applied to control the propagation of light waves remains a major focus in photonics. In this study, we inserted a finite-size HMM [...] Read more.
Hyperbolic metamaterials (HMMs) are highly anisotropic materials with the unique property of generating electromagnetic modes. Understanding how these materials can be applied to control the propagation of light waves remains a major focus in photonics. In this study, we inserted a finite-size HMM rod into the point defect of two-dimensional photonic crystals (PhCs) and investigated the unique cavity modes of this hybrid system. The HMM enhances the efficiency of the cavity system in controlling light transmission. Numerical results demonstrate that the cavity modes based on HMMs can be categorized into various types, showing high Q-factors and promising potential for resonant modulation. Furthermore, the switching performance of the cavity with an HMM rod was examined, revealing that the finite-size HMM modes are highly frequency-sensitive and suitable for nonlinear controlled all-optical switching. These switches, characterized by low power consumption and high extinction ratios, are highly suitable for integration into photonic systems. Our investigation on the new type of HMM cavity illustrates that anisotropic materials can be effectively applied in cavity systems to generate highly efficient modes for filtering and switching. Full article
(This article belongs to the Special Issue Nonlinear Optical Properties and Applications of 2D Materials)
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