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Applied Sciences
Special Issues
Novel Fabrication Methods and Materials of Photonic Devices
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Novel Fabrication Methods and Materials of Photonic Devices

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: closed (25 November 2021) | Viewed by 7003

Special Issue Editor

Dr. Donato Conteduca

E-Mail Website
Guest Editor
Photonics Group, University of York, Heslington, York YO10 5DD, UK
Interests: photonic devices; optical biosensing; optical trapping; optical communications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, photonics has become a key enabling technology for the future. Photonic devices are everywhere in our societies and represent a fundamental aspect in several sectors of industry and services. Photonics is not limited only to lighting, communications, and photovoltaics, as observed in the last decades, but there is an exponentially rising demand for photonics in many other areas, considered inaccessible until now, such as healthcare, agriculture, archaeology, aerospace, and beyond for all-optical computing and quantum computing.

The growth of the photonics market is mainly due to the remarkable and fast improvements observed in the fabrication of photonic devices at micro- and nanoscale with new manufacturing techniques and novel materials. The strong compactness and integrability of photonic devices enable high-volume production with a decrease in system costs. Moreover, high-resolution and accuracy obtained with new manufacturing approaches can maximize light–matter interaction with an improvement of the performance at different length scales in several fields with the possibility to overcome the diffraction limit of light.

This Special Issue will focus on the latest advances of photonic devices and systems based on the development of novel fabrication methods, so enabling the use of photonics as a disruptive technology for the next generation of devices for communications, lighting, sensing, etc. Both review articles and novel research papers are solicited, covering the following areas:

  • Original fabrication methods, techniques, and approaches in photonics.
  • New materials and improvements in established photonic platforms (i.e., silicon platforms, plasmonics, metamaterials, 2D materials, hybrid systems).
  • Fabrication of novel photonic structures for light control and manipulation down to nanoscale (i.e., resonant metasurfaces, nanosensors, metalenses, trapping nanotweezers)
  • Methods for device integration on a single-chip to realize new photonic systems and platforms.

Dr. Donato Conteduca
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. Applied Sciences 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 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

  • Fabrication of photonic devices
  • Photonic materials
  • Nanophotonics
  • Light control and nanomanipulation
  • Integrated photonics
  • Integration of photonic systems

Published Papers (2 papers)

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Research

14 pages, 4752 KiB  
Article
Single Mode, Air-Cladded Optical Waveguides Supported by a Nano-Fin Fabricated with Direct Laser Writing
by Parvinder K. Gill and Dan M. Marom
Appl. Sci. 2021, 11(14), 6327; https://0-doi-org.brum.beds.ac.uk/10.3390/app11146327 - 08 Jul 2021
Cited by 5 | Viewed by 2890
Abstract
Single-mode, air-cladded optical waveguides have wavelength scale diameters, making them very fragile and difficult to handle and yet highly desirable for sensing and inter-chip photonic interconnects. These contradictory qualities are resolved in this work by supporting the optical waveguide with a nano-fin structure [...] Read more.
Single-mode, air-cladded optical waveguides have wavelength scale diameters, making them very fragile and difficult to handle and yet highly desirable for sensing and inter-chip photonic interconnects. These contradictory qualities are resolved in this work by supporting the optical waveguide with a nano-fin structure attached to a substrate, narrow enough and sufficiently tall to minimally impact the wave-guiding metrics of the solid core while providing structural mechanical integrity. The design considerations for the nano-fin-supported waveguide and its realization using a commercial direct laser writing system based on two-photon activation of a photopolymer is reported herein. The 3D printed waveguides are characterized and experimentally assessed, demonstrating low birefringence and an estimated propagation loss for LP01x and LP01y of 2.9 dB/mm and 3.4 dB/mm, respectively, attributed to surface roughness and the relatively high refractive index contrast with air. Full article
(This article belongs to the Special Issue Novel Fabrication Methods and Materials of Photonic Devices)
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12 pages, 2841 KiB  
Article
Fabrication of Alumina-Doped Optical Fiber Preforms by an MCVD-Metal Chelate Doping Method
by K. A. Mat Sharif, N. Y. M. Omar, M. I. Zulkifli, S. Z. Muhamad Yassin and H. A. Abdul-Rashid
Appl. Sci. 2020, 10(20), 7231; https://0-doi-org.brum.beds.ac.uk/10.3390/app10207231 - 16 Oct 2020
Cited by 8 | Viewed by 3436
Abstract
This paper reports on the fabrication of alumina-doped preforms using a modified chemical vapor deposition (MCVD)-vapor phase chelate delivery system with Al(acac)3 as the precursor. The objectives of this work are to study the deposition process, the efficiency of the fabrication process, [...] Read more.
This paper reports on the fabrication of alumina-doped preforms using a modified chemical vapor deposition (MCVD)-vapor phase chelate delivery system with Al(acac)3 as the precursor. The objectives of this work are to study the deposition process, the efficiency of the fabrication process, and the quality of the fabricated fiber preforms. Two parameters are studied, the Al(acac)3 sublimator temperature (TAl °C) and the deposition direction (i.e., downstream and upstream). Other parameters such as the oxygen flow and deposition temperature are fixed. The results show that high uniformity of the refractive index difference (%RSD < 2%) and core size (%RSD < 2.4%) was obtained along the preform length using downstream deposition, while for the combined upstream and downstream deposition, the uniformity deteriorated. The process efficiency was found to be about 21% for TAl °C of 185 °C and downstream deposition. From the EDX elemental analysis, the refractive index was found to increase by 0.0025 per mole percent of alumina. Full article
(This article belongs to the Special Issue Novel Fabrication Methods and Materials of Photonic Devices)
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