Researchers Developed Reprogrammable Optical Device
An international team created a metasurface device that uses laser light to alter light manipulation in real time.
Updated on Sept. 28, 2026 in Quantum Computing
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Researchers have engineered an innovative optical device that uses laser light to physically rotate liquid crystal molecules, allowing for the reconfiguration of metasurfaces after their initial fabrication. This breakthrough enables the conversion of infrared light into visible green-yellow light through the manipulation of optical responses.
Why it matters
This technology offers a path toward faster and more energy-efficient information processing systems. By allowing metasurfaces to be tuned post-fabrication, the discovery could enhance the flexibility of optical hardware used in modern computing.
The device integrates an ultrathin silicon metasurface surrounded by liquid crystals to modify light behavior. Laser-induced optical torque rotates these molecules to shift the device's resonance wavelength.
The players
The Australian National University
This public research university located in Canberra serves as a leading institution for physics and advanced engineering research.
Friedrich Schiller University Jena
Based in Germany, this institution is globally recognized for its deep focus on optics, photonics, and quantum technologies.
Nottingham Trent University
This United Kingdom-based research university contributed specialized expertise to the development of the metasurface system.
The details
By surrounding tiny silicon structures with liquid crystals, the team created a medium where light interaction is dynamic rather than fixed. The system demonstrated the ability to perform third-harmonic generation, effectively converting infrared light into a visible green-yellow spectrum.
Timeline
Late 1990s: Researchers conducted the earliest experiments using light to control liquid crystals.
The Tech Race
While metasurface technology has traditionally relied on rigid, static architectures, this development introduces dynamic control to the field. This capability positions such devices as potential replacements for legacy components that currently limit the speed of optical computing systems.
For users and developers, this technology promises significantly more efficient hardware for high-speed data processing. Future integration of these reconfigurable surfaces could eventually lead to faster consumer electronics and more powerful computing infrastructure.
The takeaway
This advancement demonstrates that light itself can be used to engineer the very materials that manipulate it. Implementing such dynamic control will be essential for the next generation of energy-efficient computing hardware.
What happens next
The research team plans to reduce the laser power required for reconfiguration and begin efforts to translate these experimental concepts into functional, practical systems.
Further reading
Learn more about the latest innovations in this field in the Quantum Computing section.
Source note: This article includes information reported by Photonicsonline.
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