Nottingham Trent University Develops ‘Virtual Metasurfaces’ Enabling Simultaneous Multi-Function Operation in a Single Device

July 19, 2026

Photonics.com UK

Overview

Researchers at Nottingham Trent University have developed a novel technology called ‘virtual metasurfaces,’ overcoming the static limitations of physical metasurfaces. This breakthrough allows a single device to simultaneously and dynamically perform multiple optical functions. The technology holds potential to revolutionize future imaging by converting infrared images to visible light or dynamically adjusting device focus.

In Depth

Key Findings

A research team at Nottingham Trent University has developed a groundbreaking technology dubbed ‘virtual metasurfaces.’ This novel approach overcomes the inherent limitation of conventional physical metasurfaces, which possess fixed optical functions once fabricated, by enabling a single device to execute multiple optical functions simultaneously and dynamically. This innovation holds revolutionary potential for future imaging, sensing, and display technologies.

Technical / Clinical Details

Traditional metasurfaces precisely control light’s phase, amplitude, and polarization through their nanoscale structures, but their optical properties are fixed post-fabrication. In contrast, virtual metasurfaces do not alter physical structures; instead, they operate by dynamically generated 2D light patterns (e.g., holographic patterns produced by digital projectors) functioning as a ‘virtual’ metasurface. By rapidly changing these light patterns, the device can switch between different optical functions or perform multiple functions concurrently in real-time. Specific applications include converting infrared images to visible images, dynamically adjusting device focus, and multispectral imaging for simultaneously acquiring different types of information. This flexible optical control capability offers significant advantages, particularly in areas like smart glasses, medical diagnostic equipment, security systems, and autonomous vehicle sensors.

Background & Context

Optical technology is constantly pressured to evolve, especially in modern contexts demanding miniaturization and multifunctionality. Achieving high-performance optical functions within confined spaces, such as in smartphones, wearables, and IoT devices, presents a significant challenge. Traditional optical systems often rely on combining multiple lenses and filters to achieve complex functionalities, leading to larger, more expensive setups. While metasurfaces promised to overcome these issues, their static nature limited their application scope. The development of virtual metasurfaces breaks this barrier, merging digital technology with nanophotonics to realize next-generation ultra-compact and adaptive optical systems.

Strategic Significance & Outlook

Virtual metasurface technology holds the potential to drive innovative product development across a wide range of fields, including smart devices, medical imaging, robotic vision, and defense and security. As this technology matures, a single, compact chip might integrate the functions of multiple cameras, sensors, and displays, fundamentally altering current device design paradigms. For example, a smartphone camera could potentially switch between normal photography, depth sensing, thermal imaging, and spectroscopic analysis purely through software. The research by Nottingham Trent University represents a crucial step toward realizing dynamically reconfigurable optical systems, significantly opening up the future of optical technology, and its continued progress will be closely watched.

Source: https://www.photonics.com/Articles/Tunable-Virtual-Metasurfaces-Perform-Multiple/p5/a72403

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