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Nanomaterials
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Nanoscience for Photonics and Spectroscopy
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Nanoscience for Photonics and Spectroscopy

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

Deadline for manuscript submissions: closed (15 February 2022) | Viewed by 5251

Special Issue Editors

Dr. Lukasz Piatkowski

E-Mail Website
Guest Editor
Institute of Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland
Interests: microscopy; spectroscopy; single molecule; biophysics; time-resolved microscopy and spectroscopy; fluorescence; biomimetic membranes; water; femtosecond dynamics
Special Issues, Collections and Topics in MDPI journals
Dr. Michał Kotkowiak

E-Mail Website
Guest Editor
Institute of Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland
Interests: photosynthetic dyes; noble metal nanoparticles; plasmonic; singlet oxygen; surface enhanced techniques; photoacoustic spectroscopy; Langmuir technique; computational nanophotonics

Special Issue Information

Dear Colleagues,

A Special Issue of Nanomaterials will discuss the state-of-the-art of “Nanoscience for Photonics and Spectroscopy”. Today, nanoscience is closely related to photonics and spectroscopy. The ability to fabricate sophisticated nanostructures and nanodevices has enabled the study of fundamental light–matter interactions in the nanoworld, unraveling a spectrum of fascinating phenomena unseen in the macroscopic world. Continuous development in nanofabrication and nanocharacterization allows not only for manipulation and control over interactions between light and nano-objects and their static properties (for instance, spectral), but also to modulate their temporal trajectories (control of chemical reactivity). This Special Issue has a broad scope and encompasses both the application of nanostructures to study fundamental interactions at a single particle level and the development and characterization of nanosystems for photonics and spectroscopy applications. We cordially invite submissions of original research articles, comprehensive reviews and perspectives on, but not limited to, the following topics:

  • Fabrication and characterization of nanostructures for photonics and spectroscopy applications;
  • Hybrid organic–plasmonic systems;
  • Nanophotonic energy conversion;
  • Single-particle enhancement approaches;
  • Manipulation and control of single-particle properties through coupling with nanostructures;
  • Nanoscience for biosensing.

Dr. Lukasz Piatkowski
Dr. Michał Kotkowiak
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. 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.

Keywords

  • photonics
  • plasmon
  • plasmonic enhancement
  • nanoparticles, quantum dot, antennas
  • nanoelectronics
  • metamaterials
  • hybrid nanophotonics
  • biosensing

Published Papers (3 papers)

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Research

19 pages, 9764 KiB  
Article
Direct Laser Patterning of CdTe QDs and Their Optical Properties Control through Laser Parameters
by Francesco Antolini, Francesca Limosani and Rocco Carcione
Nanomaterials 2022, 12(9), 1551; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12091551 - 04 May 2022
Cited by 2 | Viewed by 1575
Abstract
Direct laser patterning is a potential and powerful technique to localize nanomaterials within a host matrix. The main goal of this study is to demonstrate that by tuning some parameters of a laser source, like power and laser pulse frequency, it is possible [...] Read more.
Direct laser patterning is a potential and powerful technique to localize nanomaterials within a host matrix. The main goal of this study is to demonstrate that by tuning some parameters of a laser source, like power and laser pulse frequency, it is possible to modify and tune the optical properties of the generated quantum dots (QDs) within a host matrix of a specific chemical composition. The study is realized by using cadmium telluride (CdTe) QD precursors, embedded in polymethylmethacrylate (PMMA) host matrix, as starting materials. The patterning of the CdTe QDs is carried out by using a UV nanosecond laser source at 355. Fluorescence microscopy and photoluminescence spectroscopy, associated with transmission electron microscopy, indicate that it is possible to obtain desired patterns of QDs emitting from green to red of the visible spectrum, due to the formed CdTe QDs. Preliminary highlights of the CdTe QDs’ formation mechanism are given in terms of laser power and laser pulse frequency (repetition rate). Full article
(This article belongs to the Special Issue Nanoscience for Photonics and Spectroscopy)
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13 pages, 3552 KiB  
Article
Determination of the Size Distribution of Metallic Colloids from Extinction Spectroscopy
by Yehia Mansour, Yann Battie, Aotmane En Naciri and Nouari Chaoui
Nanomaterials 2021, 11(11), 2872; https://0-doi-org.brum.beds.ac.uk/10.3390/nano11112872 - 28 Oct 2021
Cited by 4 | Viewed by 1500
Abstract
In this paper, we explore the ability of extinction spectroscopy to characterize colloidal suspensions of gold nanoparticles (Au NPs). We demonstrate that the Au NPs’ size distribution can be deduced by analyzing their extinction spectra using Mie theory. Our procedure, based on the [...] Read more.
In this paper, we explore the ability of extinction spectroscopy to characterize colloidal suspensions of gold nanoparticles (Au NPs). We demonstrate that the Au NPs’ size distribution can be deduced by analyzing their extinction spectra using Mie theory. Our procedure, based on the non-negative least square algorithm, takes advantage of the high sensitivity of the plasmon band to the Au NP size. In addition, this procedure does not require any a priori information on the Au NP size distribution. The Au NPs’ size distribution of monomodal or bimodal suspensions can be satisfactorily determined from their extinction spectra. Finally, we show that this characterization tool is compatible with in situ measurement and allows following the change in NPs’ radii during laser exposure. Full article
(This article belongs to the Special Issue Nanoscience for Photonics and Spectroscopy)
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12 pages, 1591 KiB  
Article
Computational and Experimental Analysis of Gold Nanorods in Terms of Their Morphology: Spectral Absorption and Local Field Enhancement
by Juan Manuel Núñez-Leyva, Eleazar Samuel Kolosovas-Machuca, John Sánchez, Edgar Guevara, Alexander Cuadrado, Javier Alda and Francisco Javier González
Nanomaterials 2021, 11(7), 1696; https://0-doi-org.brum.beds.ac.uk/10.3390/nano11071696 - 28 Jun 2021
Cited by 3 | Viewed by 2576
Abstract
A nanoparticle’s shape and size determine its optical properties. Nanorods are nanoparticles that have double absorption bands associated to surface plasmon oscillations along their two main axes. In this work, we analize the optical response of gold nanorods with numerical simulations and spectral [...] Read more.
A nanoparticle’s shape and size determine its optical properties. Nanorods are nanoparticles that have double absorption bands associated to surface plasmon oscillations along their two main axes. In this work, we analize the optical response of gold nanorods with numerical simulations and spectral absorption measurements to evaluate their local field enhancement—which is key for surface-enhanced Raman spectroscopic (SERS) applications. Our experimental results are in good agreement with finite element method (FEM) simulations for the spectral optical absorption of the nanoparticles. We also observed a strong dependence of the optical properties of gold nanorods on their geometrical dimension and shape. Our numerical simulations helped us reveal the importance of the nanorods’ morphology generated during the synthesis stage in the evaluation of absorption and local field enhancement. The application of these gold nanorods in surface-enhancement Raman spectroscopy is analyzed numerically, and results in a 5.8×104 amplification factor when comparing the values obtained for the nanorod deposited on a dielectric substrate compared to the nanorod immersed in water. Full article
(This article belongs to the Special Issue Nanoscience for Photonics and Spectroscopy)
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