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Nonlinear Optics of Nanomaterials
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Nonlinear Optics of Nanomaterials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 4199

Special Issue Editor

Prof. Dr. Tatiana V. Murzina

E-Mail Website
Guest Editor
Department of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
Interests: nonlinear optics; nanostructures; nonlinear magnetooptics; metamaterials

Special Issue Information

Dear Colleagues,

This Special Issue will concentrate on the discussion of nonlinear optical effects that are specific for nanomaterials of different design. Modern techniques capable of the fabrication of both ordered and random nanostructured media allow for the appearance of new functional properties, including resonance effects in nanoparticles, unusual dispersion of metal–dielectric or magnetooptical composites, crucial interface effects that govern the properties of a composite, etc. Given their observation in linear optical and magnetooptical spectroscopy, these properties are much more pronounced in their nonlinear optical response, which is highly sensitive to local field and interface effects.

Understanding of the main mechanisms of the nonlinear optical response of nanomaterials in relation to their properties requires the development of both experimental and theoretical studies, which will be described in this issue.

Prof. Dr. Tatiana V. Murzina
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. Materials 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 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

  • nanomaterials
  • nanocomposites
  • nonlinear optics
  • magnetic nonlinear optics

Published Papers (2 papers)

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Research

12 pages, 4203 KiB  
Article
Giant Third-Order Nonlinear Response of Mixed Perovskite Nanocrystals
by Aya M. Abu Baker, Ganjaboy S. Boltaev, Mazhar Iqbal, Mikhail Pylnev, Nasser M. Hamdan and Ali S. Alnaser
Materials 2022, 15(1), 389; https://doi.org/10.3390/ma15010389 - 05 Jan 2022
Cited by 12 | Viewed by 2308
Abstract
Mixed (FAPbI3)0.92(MAPbBr3)0.08 perovskite thin films exhibit strong nonlinear optical responses, rendering them promising candidates for applications in photonics and optical communications. In this work, we present a systematic study on the ultrafast third-order nonlinear optical processes [...] Read more.
Mixed (FAPbI3)0.92(MAPbBr3)0.08 perovskite thin films exhibit strong nonlinear optical responses, rendering them promising candidates for applications in photonics and optical communications. In this work, we present a systematic study on the ultrafast third-order nonlinear optical processes in mixed perovskite nanocrystals (NCs) by exploring the generation of third harmonic radiation and giant two-photon absorption-based photoluminescence (PL) when excited by femtosecond laser pulses of a 1030 nm central wavelength. A comparative analysis of the coherent third harmonic generation in the thin-film-containing perovskite nanocrystals has shown a 40× enhancement of the third harmonic signal compared to the signal generated in the pure quartz substrate. The cubic dependence of the third-nonlinear optical response of the (FAPbI3)0.92(MAPbBr3)0.08 perovskites on the intensity of the driving radiation was identified using broadband 38 femtosecond driving pulses. The positive nonlinear refractive index (γ = +1.4 × 10−12 cm2·W−1) is found to play an important role in improving the phase-matching conditions of the interacting pulses by generating a strong third order harmonic. The giant two-photon absorption (TPA)-assisted PL peak was monitored and a blue shift of the PL was obtained in the higher intensity range of the laser pulses, with the absorption coefficient β estimated to be~+7.0 cm·MW−1 at a 1030 nm laser wavelength. Full article
(This article belongs to the Special Issue Nonlinear Optics of Nanomaterials)
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7 pages, 1035 KiB  
Article
Interface Driven Effects in Magnetization-Induced Optical Second Harmonic Generation in Layered Films Composed of Ferromagnetic and Heavy Metals
by Evgeniy Mamonov, Irina Kolmychek, Victoria Radovskaya, Igor Pashen’kin, Nikita Gusev, Anton Maydykovskiy, Marina Temiryazeva, Alexei Temiryazev and Tatiana Murzina
Materials 2021, 14(13), 3573; https://doi.org/10.3390/ma14133573 - 26 Jun 2021
Cited by 1 | Viewed by 1429
Abstract
Properties of nanolayers can substantially differ from those of bulky materials, in part due to pronounced interface effects. It is known that combinations of layers of heavy and ferromagnetic metals leads to the appearance of specific spin textures induced by interface-induced Dzyaloshinskyi–Moria interaction [...] Read more.
Properties of nanolayers can substantially differ from those of bulky materials, in part due to pronounced interface effects. It is known that combinations of layers of heavy and ferromagnetic metals leads to the appearance of specific spin textures induced by interface-induced Dzyaloshinskyi–Moria interaction (DMI), which attracts much interest and requires further studies. In this paper, we study magneto-optical effects in two- and three-layer films composed of a few nanometer thick Co layer adjacent to nanofilms of non-magnetic materials (Pt, W, Cu, Ta, MgO). For experimental studies of the interface magnetization-induced effects, we used the optical second harmonic generation (SHG) technique known for its high sensitivity to the symmetry breaking. We found that the structural asymmetry leads to the increase of the averaged SHG intensity, as well as to the magnetic field-induced effects in SHG. Moreover, by choosing the proper geometry of the experiment, we excluded the most studied linear in magnetization SHG contributions and, thus, succeeded in studying higher order in magnetization and non-local magnetic effects. We revealed odd in magnetization SHG effects consistent with the phenomenological description involving inhomogeneous (gradient) magnetization distribution at interfaces and found them quite pronounced, so that they should be necessarily taken into account when analyzing the non-linear magneto-optical response of nanostructures. Full article
(This article belongs to the Special Issue Nonlinear Optics of Nanomaterials)
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