Research on Nonlinear Optics with 2D Materials

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

Deadline for manuscript submissions: closed (20 December 2023) | Viewed by 963

Special Issue Editors


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Guest Editor
School of Physics, Peking University, Beijing 100871, China
Interests: integrated photonics; 2D materials; nonlinear optics
Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
Interests: integrated photonics; nonlinear optics; 2D materials; optical communications
Special Issues, Collections and Topics in MDPI journals
Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
Interests: 2D materials; nonlinear optics; optoelectronic devices
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The discovery of graphene in 2004 has sparked a significant surge in research and development activities focused on two-dimensional (2D) materials, including graphene, black phosphorus, transition metal dichalcogenides (TMDCs), hexagonal boron nitride (hBN), and graphene oxide (GO). These materials, with their atomically thin and layered structures, exhibit remarkable optical properties that differ from those of conventional bulk materials. They possess an ultrafast broadband optical response, large optical nonlinearities, and strong excitonic effects.

In recent years, there has been growing interest in exploring the nonlinear optical properties of 2D materials, both for laboratory research purposes and potential practical and industrial applications. Studies have shown that 2D materials like graphene, graphene oxide, and MoS2 exhibit giant Kerr nonlinear responses, several orders of magnitude higher than those of bulk materials such as silicon. Additionally, 2D materials have demonstrated superior performance as broadband, fast-recovery, saturable absorbers for mode-locking in ultrafast pulsed fiber lasers.

Therefore, this Special Issue aims to showcase research papers and review articles that delve into the field of nonlinear optics with 2D materials. The focus includes investigating the nonlinear optical properties of 2D materials, such as saturable absorption, multiphoton absorption, and second- or third-order nonlinearity. Furthermore, the application of these properties in ultrafast all-optical signal generation and processing will be explored.

Dr. Yuning Zhang
Dr. Jiayang Wu
Dr. Linnan Jia
Guest Editors

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. Crystals is an international peer-reviewed open access monthly 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 2600 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

  • 2D materials
  • nonlinear optics
  • optoelectronic devices
  • material microstructure

Published Papers (1 paper)

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Research

13 pages, 5202 KiB  
Article
Influence of Growth Time and Temperature on Optical Characteristics and Surface Wetting in Nano-Crystalline Graphene Deposited by PECVD Directly on Silicon Dioxide
by Algimantas Lukša, Virginijus Bukauskas, Viktorija Nargelienė, Marius Treideris, Martynas Talaikis, Algirdas Selskis, Artūras Suchodolskis and Arūnas Šetkus
Crystals 2023, 13(8), 1243; https://doi.org/10.3390/cryst13081243 - 11 Aug 2023
Viewed by 724
Abstract
Unique electronic properties of graphene offer highly interesting ways to manipulate the functional properties of surfaces and develop novel structures which are sensitive to physical and chemical interactions. Nano-crystalline graphene is frequently preferable to crystalline monolayer in detecting devices. In this work, nano-crystalline [...] Read more.
Unique electronic properties of graphene offer highly interesting ways to manipulate the functional properties of surfaces and develop novel structures which are sensitive to physical and chemical interactions. Nano-crystalline graphene is frequently preferable to crystalline monolayer in detecting devices. In this work, nano-crystalline graphene layers were synthesized directly on SiO2/Si substrates by plasma-enhanced chemical vapour deposition (PECVD). The influence of the deposition time and temperature on the characteristics of the structures were studied. The optical properties and evaporation kinetics of pure water droplets were analysed, along with arrangement and composition of the grown layers. The nano-crystalline graphene layers grown at 500 °C were characterised by the refraction index 2.75 ± 0.35 and the normalised excess Gibbs free energy density 0.85/γwater 10−4 m, both being similar to those of the monolayer graphene. The changes in the refraction index and the excess Gibbs free energy were related to the parameters of the Raman spectra and a correlation with the technological variables were disclosed. Full article
(This article belongs to the Special Issue Research on Nonlinear Optics with 2D Materials)
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