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Advances in Photonic and Plasmonic Nanomaterials—Volume II
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Advances in Photonic and Plasmonic Nanomaterials—Volume II

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: 31 August 2024 | Viewed by 7110

Special Issue Editor

Dr. Nikolaos G. Semaltianos

E-Mail Website
Guest Editor
Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
Interests: atomic and molecular optical spectroscopy; laser materials microprocessing; laser ablation; laser-induced plasma plume; nanocomposites; nanomagnetism; semiconductor optoelectronics; thin films technology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Photonic and plasmonic nanomaterials are nanomaterials whose interaction with photons results in electronic excitation and in charge or energy transfer. They find a large number of applications in chemical sensing, optoelectronics, catalysis, quantum information processing, photovoltaics, and others.

Size-dependent light emission from semiconducting quantum dots, due to the quantum confinement effect, forms the basis for their use in LEDs, displays, photodetectors, and medical imaging. Plasmon resonance absorption in metallic nanoparticles is used in the effective light coupling of solar cells or of surface-enhanced Raman scattering. The photoexcitation of bimetallic nanoparticles is used in the catalysis of a hydrogen or oxygen evolution reaction or in the degradation of water contaminants. Nonstoichiometric binary semiconducting nanoparticles can produce wavelength-controllable defect-related luminescence. Hybrid nanostructures consisting of graphene and plasmonic nanoparticles can be used for photocatalytic dye degradation. Hybrids consisting of plasmonic nanoparticles and metal oxide nanoplates are used as chemical sensors. 

Photonic and plasmonic nanomaterials can be synthesized by a number of methods, including colloidal chemistry, laser ablation, spark current decomposition, electrochemistry, and others.

This is the second volume of the Special Issue “Advances in Photonic and Plasmonic Nanomaterials”. Experimental and theoretical articles will be accepted regarding the preparation, characterization, and application of photonic and plasmonic nanomaterials. Topics of interest include, but are not limited to, the following:

  • semiconductor quantum dots
  • plasmonic metallic nanoparticles
  • nanocomposites
  • photonic metamaterials
  • photonic nanocrystals
  • photonic nanostructures
  • 2D materials
  • carbon nanostructures

Dr. Nikolaos G. Semaltianos
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 2900 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.

Published Papers (6 papers)

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Research

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10 pages, 2836 KiB  
Article
Ultrafast Dynamics of Extraordinary Optical Transmission through Two-Slit Plasmonic Antenna
by Guangqing Du, Fangrui Yu, Yu Lu, Lin Kai, Caiyi Chen, Qing Yang, Xun Hou and Feng Chen
Nanomaterials 2023, 13(16), 2284; https://doi.org/10.3390/nano13162284 - 09 Aug 2023
Viewed by 715
Abstract
We have theoretically investigated the spatial-temporal dynamics of extraordinary optical transmission (EOT) through a two-slit plasmonic antenna under femtosecond laser dual-beam irradiation. The dynamic interference of the crossed femtosecond laser dual-beam with the transiently excited surface plasmon polariton waves are proposed to characterize [...] Read more.
We have theoretically investigated the spatial-temporal dynamics of extraordinary optical transmission (EOT) through a two-slit plasmonic antenna under femtosecond laser dual-beam irradiation. The dynamic interference of the crossed femtosecond laser dual-beam with the transiently excited surface plasmon polariton waves are proposed to characterize the particular spatial-temporal evolutions of EOT. It is revealed that the dynamic EOT can be flexibly switched with tunable symmetry through the respective slit of a two-slit plasmonic antenna by manipulating the phase correlation of the crossed femtosecond laser dual-beam. This is explained as tunable interference dynamics by phase control of surface plasmon polariton waves, allowing the dynamic modulation of EOT at optimized oblique incidences of dual-beams. Furthermore, we have obtained the unobserved traits of symmetry-broken transient spectra of EOT from the respective up- and down-slit of the antenna under crossed femtosecond laser dual-beam irradiation. This study can provide fundamental insights into the ultrafast dynamics of EOT in two-slit plasmonic antennas, which can be helpful to advance a wide range of applications, such as ultrafast plasmonic switch, ultrahigh resolution imaging, the transient amplification of non-linear effects, etc. Full article
(This article belongs to the Special Issue Advances in Photonic and Plasmonic Nanomaterials—Volume II)
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13 pages, 9489 KiB  
Article
Photonic Characterisation of Indium Tin Oxide as a Function of Deposition Conditions
by Samuel F. J. Blair, Joshua S. Male, Stuart A. Cavill, Christopher P. Reardon and Thomas F. Krauss
Nanomaterials 2023, 13(13), 1990; https://doi.org/10.3390/nano13131990 - 30 Jun 2023
Cited by 2 | Viewed by 1158
Abstract
Indium tin oxide (ITO) has recently gained prominence as a photonic nanomaterial, for example, in modulators, tuneable metasurfaces and for epsilon-near-zero (ENZ) photonics. The optical properties of ITO are typically described by the Drude model and are strongly dependent on the deposition conditions. [...] Read more.
Indium tin oxide (ITO) has recently gained prominence as a photonic nanomaterial, for example, in modulators, tuneable metasurfaces and for epsilon-near-zero (ENZ) photonics. The optical properties of ITO are typically described by the Drude model and are strongly dependent on the deposition conditions. In the current literature, studies often make several assumptions to connect the optically measured material parameters to the electrical properties of ITO, which are not always clear, nor do they necessarily apply. Here, we present a comprehensive study of the structural, electrical, and optical properties of ITO and showed how they relate to the deposition conditions. We use guided mode resonances to determine the dispersion curves of the deposited material and relate these to structural and electrical measurements to extract all relevant material parameters. We demonstrate how the carrier density, mobility, plasma frequency, electron effective mass, and collision frequency vary as a function of deposition conditions, and that the high-frequency permittivity (ϵ∞) can vary significantly from the value of ϵ∞ = 3.9 that many papers simply assume to be a constant. The depth of analysis we demonstrate allows the findings to be easily extrapolated to the photonic characterisation of other transparent conducting oxides (TCOs), whilst providing a much-needed reference for the research area. Full article
(This article belongs to the Special Issue Advances in Photonic and Plasmonic Nanomaterials—Volume II)
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11 pages, 3717 KiB  
Article
1337 nm Emission of a Nd3+-Doped TZA Glass Random Laser
by Jessica Dipold, Camila D. S. Bordon, Evellyn S. Magalhães, Luciana R. P. Kassab, Ernesto Jimenez-Villar and Niklaus U. Wetter
Nanomaterials 2023, 13(13), 1972; https://doi.org/10.3390/nano13131972 - 29 Jun 2023
Cited by 1 | Viewed by 1286
Abstract
Random lasers have been studied using many materials, but only a couple have used glass matrices. Here, we present a study of zinc tellurite and aluminum oxide doped with different percentages of neodymium oxide (4 wt.%, 8 wt.%, and 16 wt.%) and demonstrate [...] Read more.
Random lasers have been studied using many materials, but only a couple have used glass matrices. Here, we present a study of zinc tellurite and aluminum oxide doped with different percentages of neodymium oxide (4 wt.%, 8 wt.%, and 16 wt.%) and demonstrate for the first time random laser action at 1337 nm. Laser emission was verified and the laser pulse’s rise time and input–output power slope were obtained. A cavity composed of the sample’s pump surface and an effective mirror formed by a second, parallel layer at the gain-loss boundary was probably the main lasing mechanism of this random laser system. The reason for the absence of emission at 1064 nm is thought to be a measured temperature rise in the samples’ active volume. Full article
(This article belongs to the Special Issue Advances in Photonic and Plasmonic Nanomaterials—Volume II)
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15 pages, 4331 KiB  
Article
Silver Nanoclusters Tunable Visible Emission and Energy Transfer to Yb3+ Ions in Co-Doped GeO2-PbO Glasses for Photonic Applications
by Augusto Anselmo Amaro, Guilherme Rodrigues da Silva Mattos, Marcos Vinicius de Morais Nishimura, Jessica Dipold, Niklaus Ursus Wetter and Luciana Reyes Pires Kassab
Nanomaterials 2023, 13(7), 1177; https://doi.org/10.3390/nano13071177 - 25 Mar 2023
Cited by 1 | Viewed by 1025
Abstract
This work investigates the optical properties of Yb3+ ions doped GeO2-PbO glasses containing Ag nanoclusters (NCs), produced by the melt-quenching technique. The lack in the literature regarding the energy transfer (ET) between these species in these glasses motivated the present [...] Read more.
This work investigates the optical properties of Yb3+ ions doped GeO2-PbO glasses containing Ag nanoclusters (NCs), produced by the melt-quenching technique. The lack in the literature regarding the energy transfer (ET) between these species in these glasses motivated the present work. Tunable visible emission occurs from blue to orange depending on the Yb3+ concentration which affects the size of the Ag NCs, as observed by transmission electron microscopy. The ET mechanism from Ag NCs to Yb3+ ions (2F7/2 → 2F5/2) was attributed to the S1→T1 decay (spin-forbidden electronic transition between singlet–triplet states) and was corroborated by fast and slow lifetime decrease (at 550 nm) of Ag NCs and photoluminescence (PL) growth at 980 nm, for excitations at 355 and 405 nm. The sample with the highest Yb3+ concentration exhibits the highest PL growth under 355 nm excitation, whereas at 410 nm it is the sample with the lowest concentration. The restriction of Yb3+ ions to the growth of NCs is responsible for these effects. Thus, higher Yb3+ concentration forms smaller Ag NCs, whose excitation at 355 nm leads to more efficient ET to Yb3+ ions compared to 410 nm. These findings have potential applications in the visible to near-infrared regions, such as tunable CW laser sources and photovoltaic devices. Full article
(This article belongs to the Special Issue Advances in Photonic and Plasmonic Nanomaterials—Volume II)
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13 pages, 1976 KiB  
Article
Effect of Silver Nanoparticles on the Optical Properties of Double Line Waveguides Written by fs Laser in Nd3+-Doped GeO2-PbO Glasses
by Camila Dias da Silva Bordon, Jessica Dipold, Niklaus U. Wetter, Wagner de Rossi, Anderson Z. Freitas and Luciana R. P. Kassab
Nanomaterials 2023, 13(4), 743; https://doi.org/10.3390/nano13040743 - 16 Feb 2023
Cited by 1 | Viewed by 1479
Abstract
Nd3+-doped GeO2-PbO glass with silver (Ag) nanoparticles (NPs) are produced with double line waveguides through fs laser processing for photonic applications. A Ti:sapphire fs laser at 800 nm was used to write the waveguides directly into the glass 0.7 [...] Read more.
Nd3+-doped GeO2-PbO glass with silver (Ag) nanoparticles (NPs) are produced with double line waveguides through fs laser processing for photonic applications. A Ti:sapphire fs laser at 800 nm was used to write the waveguides directly into the glass 0.7 mm beneath the surface. This platform is based on pairs of parallel lines with spacing of 10 µm, each pair being formed by two identical written lines but in two different configurations of 4 or 8 separately processed lines, which are coincident. The results of optical microscopy, absorbance measurements, refractive index change, beam quality factor (at 632 and 1064 nm), photoluminescence, propagation losses, and relative gain at 1064 nm are presented. The structural changes in the glass due to the presence of Ag NPs were investigated by Raman spectroscopy. At 632 and 1064 nm, x,y-symmetrical guiding was observed, and for both kinds of overlapping pulses, a refractive index alteration of 10−3 was found in both directions. Photoluminescence growth of ~47% at 1064 nm was observed due to the plasmonic effect of Ag NPs. In dual waveguides containing Ag NPs, the relative gain obtained increased by 40% and 30% for four and eight overlapping lines, respectively, at 600 mW of 808 nm pump power, when compared to waveguides without those metallic NPs. We highlight the resultant positive internal gains of 5.11 and 7.12 dB/cm that showed a growth of ~40% and ~30%, respectively, with respect to the samples without Ag NPs. The increase in photoluminescence and relative gain were related to the local field growth produced by Ag NPs. The present results show that the addition of Ag NPs impacts positively on the optical performance at 1064 nm of double line waveguides processed by fs laser writing in Nd3+-doped GeO2-PbO glass, opening news perspectives for photonics. Full article
(This article belongs to the Special Issue Advances in Photonic and Plasmonic Nanomaterials—Volume II)
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Review

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28 pages, 8485 KiB  
Review
Intensity-Dependent Optical Response of 2D LTMDs Suspensions: From Thermal to Electronic Nonlinearities
by Anderson S. L. Gomes, Cecília L. A. V. Campos, Cid B. de Araújo, Melissa Maldonado, Manoel L. da Silva-Neto, Ali M. Jawaid, Robert Busch and Richard A. Vaia
Nanomaterials 2023, 13(15), 2267; https://doi.org/10.3390/nano13152267 - 07 Aug 2023
Viewed by 1009
Abstract
The nonlinear optical (NLO) response of photonic materials plays an important role in the understanding of light–matter interaction as well as pointing out a diversity of photonic and optoelectronic applications. Among the recently studied materials, 2D-LTMDs (bi-dimensional layered transition metal dichalcogenides) have appeared [...] Read more.
The nonlinear optical (NLO) response of photonic materials plays an important role in the understanding of light–matter interaction as well as pointing out a diversity of photonic and optoelectronic applications. Among the recently studied materials, 2D-LTMDs (bi-dimensional layered transition metal dichalcogenides) have appeared as a beyond-graphene nanomaterial with semiconducting and metallic optical properties. In this article, we review most of our work in studies of the NLO response of a series of 2D-LTMDs nanomaterials in suspension, using six different NLO techniques, namely hyper Rayleigh scattering, Z-scan, photoacoustic Z-scan, optical Kerr gate, and spatial self-phase modulation, besides the Fourier transform nonlinear optics technique, to infer the nonlinear optical response of semiconducting MoS2, MoSe2, MoTe2, WS2, semimetallic WTe2, ZrTe2, and metallic NbS2 and NbSe2. The nonlinear optical response from a thermal to non-thermal origin was studied, and the nonlinear refraction index and nonlinear absorption coefficient, where present, were measured. Theoretical support was given to explain the origin of the nonlinear responses, which is very dependent on the spectro-temporal regime of the optical source employed in the studies. Full article
(This article belongs to the Special Issue Advances in Photonic and Plasmonic Nanomaterials—Volume II)
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