Optics & Photonics—Micro and Nano Structures, Materials and Devices (AOP2024)

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A:Physics".

Deadline for manuscript submissions: 15 December 2024 | Viewed by 1129

Special Issue Editor


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Guest Editor
Center of Physics of the Universities of Minho and Porto, School of Sciences, University of Minho, 4710-057 Braga, Portugal
Interests: optical metrology; image processing; thin films, micro- and nanostructures and systems; optics and science education
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Special Issue Information

Dear Colleagues,

The 6th International Conference on Applications of Optics and Photonics, AOP2024, will be held in Aveiro (Portugal), 16–19 July, 2024. Since its first edition back in 2011, the AOP conference has provided an excellent opportunity to, in an open, friendly, and stimulating environment, foster the establishment of the widest range of cooperation projects and relationships with colleagues and institutions involved in research and education in optics and photonics from all around the world. Open to contributions in all domains of optics and photonics and application fields, with this conference we expect to review the state-of-the-art in these subjects and to foresee and discuss the future of research in optics and photonics. A large number of plenary and keynote lectures by world-renowned researchers in all fields of optics and photonics will set the quality standards of a varied and exciting scientific program.

We are honored to serve as Guest Editors of this Special Issue to be published in /Micromachines/ that will contain a selection of papers submitted and accepted at the AOP2024 conference in subjects relevant to the /Micromachines/ journal. Its main scope is to provide a timely and broad collection of the most innovative topics discussed at the latest edition of the conference related to all relevant topics involved in optics and photonics applications. We warmly invite researchers to submit their contributions, both original research articles and review papers, to this Special Issue. Topics include, but are not limited to:

  • Design and optimization principles of micro and nanosystems;
  • Micro and nanosystems and advanced technologies for optical engineering applications;
  • Sensors and actuators;
  • Microbots and nanorobots;
  • Optical communications, optical fiber devices and applications;
  • Biophotonics and biomedical and medical applications of light;
  • Ultrafast lasers and power lasers systems;
  • Surface micromachining and patterning;
  • Optical metrology and industrial applications;
  • Photonics and optical instrumentation for space and astronomy;
  • Liquid crystals;
  • Photonic and optoelectronic materials and devices;
  • Micro/nano fabrication and manufacturing;
  • Micro/nano-scale energy harvesting.

Dr. Manuel Filipe P. C. M. Costa
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. Micromachines 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 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

  • micro and nanosystems
  • sensors and actuators
  • microbots and nanorobots
  • optical communications, optical fiber devices and applications
  • biophotonics and biomedical and medical applications of light
  • ultrafast lasers and power lasers systems
  • optical metrology
  • industrial applications
  • optoelectronics
  • microwave photonics
  • plasmonic devices
  • photonics and optical instrumentation for space and astronomy
  • liquid crystals
  • photonic and optoelectronic materials
  • glasses
  • thin films
  • lab-on-a-chip
  • microfluidics
  • bioMEMS
  • micro/nano fabrication and manufacturing
  • lithography
  • patterning
  • surface micromachining
  • laser fabrication
  • micro/nano-scale energy harvesting

Published Papers (1 paper)

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Research

12 pages, 4442 KiB  
Article
Polarization Z-Scan Studies Revealing Plasmon Coupling Enhancement Due to Dimer Formation of Gold Nanoparticles in Nematic Liquid Crystals
by Shengwei Wang, Edward J. Lipchus, Mohamed Amine Gharbi and Chandra S. Yelleswarapu
Micromachines 2023, 14(12), 2206; https://doi.org/10.3390/mi14122206 - 05 Dec 2023
Viewed by 921
Abstract
We investigate the plasmon coupling of gold nanoparticle (AuNP) dimers dispersed in a nematic liquid crystal matrix using the polarization z-scan technique. Our experimental setup includes the precise control of incident light polarization through polarization angles of 0°, 45°, and 90°. Two distinct [...] Read more.
We investigate the plasmon coupling of gold nanoparticle (AuNP) dimers dispersed in a nematic liquid crystal matrix using the polarization z-scan technique. Our experimental setup includes the precise control of incident light polarization through polarization angles of 0°, 45°, and 90°. Two distinct cell orientations are examined: parallel and twisted nematic cells. In parallel-oriented cells, where liquid crystal molecules and AuNPs align with the rubbing direction, we observe a remarkable 2–3-fold increase in the nonlinear absorption coefficient when the polarization of the incident light is parallel to the rubbing direction. Additionally, a linear decrease in the third-order nonlinear absorption coefficient is noted as the polarization angle varies from 0° to 90°. In the case of twisted nematic cells, the NPs do not have any preferred orientation, and the enhancement remains consistent across all polarization angles. These findings conclusively establish that the observed enhancement in the nonlinear absorption coefficient is a direct consequence of plasmon coupling, shedding light on the intricate interplay between plasmonic nanostructures and liquid crystal matrices. Full article
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