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Photonics
Special Issues
Micro-Mirror Arrays as Versatile Photonic Tools
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Micro-Mirror Arrays as Versatile Photonic Tools

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 2275

Special Issue Editor

Dr. David Benton

E-Mail Website
Guest Editor
College of Engineering and Physical Sciences, Aston University, Birmingham, UK
Interests: laser detection; turbulence emulation; wavefront control using micromirror arrays; optical sensing; optical communication

Special Issue Information

Dear Colleagues,

Arrays of micro electromechanical (MEMS) mirrors, sometimes referred to as a digital micromirror device (DMD), have been commercially available for over 2 decades. During this period, their predominant commercial use has been for digital projection. This mature, robust technology has been applied to many and various applications across a range of disciplines. The list of applications continues to grow. The particular benefits of these micromirror arrays for the manipulation of light involve speed, wide spectral bandwidth and high power handling capability in comparison to other types of new applications and disciplines.

This Special Issue aims to collect a range of applications and techniques that make use of these arrays to demonstrate the versatility of the devices.

In this Special Issue, original research articles and reviews are welcome. Research areas may discuss (but is not limited to) the following:

  • Wavefront control;
  • Wide bandwidth optics;
  • Spectroscopy;
  • Holography and diffractive control;
  • Mode generation and selective filtering;
  • Optical computation;
  • Lithography;
  • Confocal microscopy;
  • Hyperspectral imaging.

We look forward to receiving your contributions.

Dr. David Benton
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. 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

  • micromirror arrays
  • DMD
  • diffraction
  • spatial light modulation

Published Papers (2 papers)

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Research

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13 pages, 3580 KiB  
Article
Spatial Mode Division Multiplexing of Free-Space Optical Communications Using a Pair of Multiplane Light Converters and a Micromirror Array for Turbulence Emulation
by David Benton, Yiming Li, Antonin Billaud and Andrew Ellis
Photonics 2024, 11(3), 241; https://doi.org/10.3390/photonics11030241 - 06 Mar 2024
Viewed by 946
Abstract
Multi-plane light converters (MPLC) are a means of deconstructing a wavefront into constituent modes that are focused at specific spatial locations, and the reverse—that specific inputs result in controlled modal output. We have used a pair of MPLCs with 21 Hermite–Gaussian modes to [...] Read more.
Multi-plane light converters (MPLC) are a means of deconstructing a wavefront into constituent modes that are focused at specific spatial locations, and the reverse—that specific inputs result in controlled modal output. We have used a pair of MPLCs with 21 Hermite–Gaussian modes to represent a free-space optical connection. The effects of strong atmospheric turbulence (Cn2 = 10−13 m−2/3) are emulated using a micromirror array producing a time sequence of aberrating frames. The modal crosstalk between transmitter and receiver modes induced by the turbulence is presented by measuring the intensity in receiver channels for the same turbulence. Six receiver modes are used for optical communication channels with a rate of 137 Gbits/s displaying the benefits of single input multiple output (SIMO) operation for overcoming the deleterious effects of turbulence. Full article
(This article belongs to the Special Issue Micro-Mirror Arrays as Versatile Photonic Tools)
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Review

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29 pages, 10660 KiB  
Review
State-of-the-Art Materials Used in MEMS Micromirror Arrays for Photonic Applications
by Shujie Liu, Philipp Kästner, Roland Donatiello, Anup Shrivastava, Marek Smolarczyk, Mustaqim Siddi Que Iskhandar, Md Kamrul Hasan, Giuseppe Caruso, Jiahao Chen, Basma Elsaka, Shilby Baby, Dennis Löber, Thomas Kusserow, Jost Adam and Hartmut Hillmer
Photonics 2024, 11(3), 253; https://doi.org/10.3390/photonics11030253 - 11 Mar 2024
Viewed by 965
Abstract
This work provides an overview on micromirror arrays based on different material systems such as dielectrics, element silicon, compound semiconductors, metals, and novel 2D materials. The goal is to work out the particular strength of each material system to enable optimum performance for [...] Read more.
This work provides an overview on micromirror arrays based on different material systems such as dielectrics, element silicon, compound semiconductors, metals, and novel 2D materials. The goal is to work out the particular strength of each material system to enable optimum performance for various applications. In particular, this review is intended to draw attention to the fact that MEMS micro-mirrors can be successful in many other material systems besides silicon. In particular, the review is intended to draw attention to two material systems that have so far been used less for MEMS micromirror arrays, that have been less researched, and of which fewer applications have been reported to date: metallic heterostructures and 2D materials. However, the main focus is on metallic MEMS micromirror arrays on glass substrates for applications like personalized light steering in buildings via active windows, energy management, active laser safety goggles, interference microscopy, and endoscopy. Finally, the different micromirror arrays are compared with respect to fabrication challenges, switching speed, number of mirrors, mirror dimensions, array sizes, miniaturization potential for individual mirrors, reliability, lifetime, and hinge methodology. Full article
(This article belongs to the Special Issue Micro-Mirror Arrays as Versatile Photonic Tools)
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