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 5766

Special Issue Editor


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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

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Keywords

  • micromirror arrays
  • DMD
  • diffraction
  • spatial light modulation

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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 - 6 Mar 2024
Viewed by 2077
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
Cited by 7 | Viewed by 3135
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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