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Photonics
Special Issues
Sciences and Applications of Nano-Photonics
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Sciences and Applications of Nano-Photonics

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optical Interaction Science".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 3932

Special Issue Editors

Dr. Lige Liu

E-Mail Website
Guest Editor
School of Physics, Peking University, No. 5 Summer Palace Road, Haidian District, Beijing 100084, China
Interests: quantum dots; perovskites; fluorescence imaging and spectroscopy
Special Issues, Collections and Topics in MDPI journals
Dr. Jian Xu

E-Mail Website
Guest Editor
School of Physics, Peking University, Beijing, China
Interests: super-resolution microscopy; three-dimensional laser nanoprinting; two-photon lithography; photonic wire bonding
Dr. Bingkun Chen

E-Mail Website
Guest Editor
School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Interests: fluorescent materials; semiconductor; display; detector
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The interaction between nanomaterials and light is an essential component in nano-photonics. The research conducted on this interaction is paving the way for the development of integrated optoelectronic systems by enabling the fabrication of novel nanomaterials with unique optical properties, the construction of micro-photonic devices, and the improvement of optical fabrication techniques.

We invite you to submit your contributions to the research on how fluorescent nanomaterials interact with lasers. This involves exploration of novel interaction principles and the fabrication of novel fluorescent nanomaterials, as well as 2D/3D micro-structures with unique laser-emission properties.

This Special Issue aims to present original research articles exploring the topic of nanomaterials. The fabrication of fluorescent nanocrystals and films, and 2D/3D micro-structures with a unique laser performance, as well as processing methods, including direct laser writing or other optical techniques, are invited for submission.

The research may include (but are not limited to) the following areas:

  • Nanocrystals/films;
  • Perovskites;
  • Two- and three-dimensional nano- and micro-structures;
  • Fluorescence and display;
  • Direct laser writing;
  • Microlasers.

I/We look forward to receiving your contributions.

Dr. Lige Liu
Dr. Jian Xu
Dr. Bingkun Chen
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. Photonics 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 2400 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

  • fluorescence
  • nanomaterials
  • direct laser writing
  • nano- and micro-structures
  • microlasers

Published Papers (4 papers)

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Research

11 pages, 2187 KiB  
Article
Analysis of the Influence of Fabrication Errors on the Far-Field Performance of Si and Si3N4 Antennas
by Yifan Xin, Wenyuan Liao, Lei Yu, Pengfei Ma, Zheng Wang, Yibo Yang, Licheng Chen, Pengfei Wang, Yejin Zhang and Jiaoqing Pan
Photonics 2024, 11(1), 81; https://doi.org/10.3390/photonics11010081 - 16 Jan 2024
Viewed by 803
Abstract
Antennas are important components in optical phased arrays. However, their far-field performance deteriorates when random phase noise is introduced because of fabricating errors. For the first time, we use a finite-difference time-domain solution to quantitatively analyze the far-field characteristics of Si and Si [...] Read more.
Antennas are important components in optical phased arrays. However, their far-field performance deteriorates when random phase noise is introduced because of fabricating errors. For the first time, we use a finite-difference time-domain solution to quantitatively analyze the far-field characteristics of Si and Si3N4 antennas considering process errors. Under rough surface conditions based on a fishbone structure, we find that the quality of the main lobe of the Si antenna deteriorates badly, with −0.87 dB and −0.51 dB decreases in the sidelobe level and 5.78% and 3.74% deteriorations in the main peak power in the φ (phase-controlled) and θ (wavelength-controlled) directions, respectively. However, the Si3N4 antenna is only slightly impacted, with mere 0.39% and 0.71% deteriorations in the main peak power in the φ and θ directions, respectively, which is statistically about 1/15 of the Si antenna in the φ direction and 1/5 in the θ direction. The decreases in the sidelobe level are also slight, at about −0.08 dB and −0.01 dB, respectively. Furthermore, the advantages of the Si3N4 antenna become more remarkable with the introduction of random errors into the waveguide width and thickness. This work is of great significance for the design and optimization of OPA chips. Full article
(This article belongs to the Special Issue Sciences and Applications of Nano-Photonics)
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14 pages, 6133 KiB  
Article
Collective Modes in the Luminescent Response of Si Nanodisk Chains with Embedded GeSi Quantum Dots
by Vladimir A. Zinovyev, Zhanna V. Smagina, Aigul F. Zinovieva, Ekaterina E. Rodyakina, Aleksey V. Kacyuba, Ksenya N. Astankova, Vladimir A. Volodin, Kseniia V. Baryshnikova, Mihail I. Petrov, Mikhail S. Mikhailovskii, Valery A. Verbus, Margarita V. Stepikhova and Alexey V. Novikov
Photonics 2023, 10(11), 1248; https://doi.org/10.3390/photonics10111248 - 10 Nov 2023
Cited by 1 | Viewed by 906
Abstract
In this paper, we study the effects of GeSi quantum dot emission coupling with the collective modes in the linear chains of Si disk resonators positioned on an SiO2 layer. The emission spectra as a function of the chain period and disk [...] Read more.
In this paper, we study the effects of GeSi quantum dot emission coupling with the collective modes in the linear chains of Si disk resonators positioned on an SiO2 layer. The emission spectra as a function of the chain period and disk radius were investigated using micro-photoluminescence (micro-PL) spectroscopy. At optimal parameters of the disk chains, two narrow PL peaks, with quality factors of around 190 and 340, were observed in the range of the quantum dot emission. A numerical analysis of the mode composition allowed us to associate the observed peaks with two collective modes with different electric field polarization relative to the chain line. The theoretical study demonstrates the change of the far-field radiation pattern with increasing length of the disk chain. The intensive out-of-plane emission was explained by the appearance of the dipole mode contribution. The obtained results can be used for the development of Si-based near-infrared light sources. Full article
(This article belongs to the Special Issue Sciences and Applications of Nano-Photonics)
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12 pages, 3172 KiB  
Article
Photonic Hook Initiated Using an Air–Liquid Interface
by Liyang Yue, Bing Yan, Zengbo Wang, Oleg V. Minin and Igor V. Minin
Photonics 2023, 10(10), 1175; https://doi.org/10.3390/photonics10101175 - 23 Oct 2023
Viewed by 900
Abstract
In this paper, we demonstrate a novel photonic hook being initiated using an air–liquid interface (ALI). This bent light focus is produced by immersing a dielectric micro-cylinder partially at the edge of a thin liquid film whose thickness is smaller than the diameter [...] Read more.
In this paper, we demonstrate a novel photonic hook being initiated using an air–liquid interface (ALI). This bent light focus is produced by immersing a dielectric micro-cylinder partially at the edge of a thin liquid film whose thickness is smaller than the diameter of the micro-cylinder. Unlike the well-known properties of normal near-field focuses, this photonic hook propagates horizontally in the liquid along the ALI at specific depths and does not require the material processing of microscopic particles or the modulation of light irradiation for initiation. A morphological analysis indicates that the contrast in the refractive indexes of the ALI causes this phenomenon at the shadow end of the micro-cylinder with a transverse dimension smaller than the diffraction limit. Compared to previously discovered photonic hooks, the unique setup of this photonic hook can generate a force field that enables optical trapping in the region slightly beneath the ALI, and the related optical pressures have been simulated. Full article
(This article belongs to the Special Issue Sciences and Applications of Nano-Photonics)
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10 pages, 2567 KiB  
Article
Electron Paramagnetic Resonance Sensing of «Hidden» Atomistic and Cooperative Defects in Femtosecond Laser-Inscribed Photoluminescent Encoding Patterns in Diamond
by Sergey Vyatkin, Pavel Danilov, Nikita Smirnov, Daniil Pomazkin, Evgeny Kuzmin, Alexey Gorevoy, Andrey Muratov, Ivan Matyaev and Sergey Kudryashov
Photonics 2023, 10(9), 979; https://doi.org/10.3390/photonics10090979 - 28 Aug 2023
Viewed by 762
Abstract
The changes that appeared in the crystal structure of a natural diamond under the influence of a pulsed femtosecond laser (525 nm) were comprehensively investigated using Fourier-transform infrared (FT-IR), electron paramagnetic resonance (EPR), and photoluminescence (PL) spectroscopy methods. It is shown that changes [...] Read more.
The changes that appeared in the crystal structure of a natural diamond under the influence of a pulsed femtosecond laser (525 nm) were comprehensively investigated using Fourier-transform infrared (FT-IR), electron paramagnetic resonance (EPR), and photoluminescence (PL) spectroscopy methods. It is shown that changes in the crystal structure occur due to the laser-driven interrelated process of the appearance and migration of interstitial carbon atoms and vacancies. On the one hand, there are atomistic transformations related to a decrease in the concentrations of structural centers that are not associated with vacancies or interstitial atoms—centers A (FT-IR spectroscopy) and P1 and W7 (EPR)—and an increase in the concentration of the H3, NV0, and NV− (PL) centers, which are associated with vacancies. On the other hand, there are indications of cooperative effects—an increase in the intensity of multi-atomic B2 (platelets, layers of interstitial carbon atoms (FT-IR)) and N2 (fragments of the structure with broken C–C bonds (EPR)) centers. Full article
(This article belongs to the Special Issue Sciences and Applications of Nano-Photonics)
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