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Home»News»Chiral plasmonic nanostructures push the limits of light manipulation on the nanoscale
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Chiral plasmonic nanostructures push the limits of light manipulation on the nanoscale

April 17, 2025No Comments2 Mins Read
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Chiral plasmonic nanostructures push the limits of light manipulation on the nanoscale
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Scanning electron microscopy (SEM) image of an array formed by 45 nm colloidal Au nanoparticles self-assembled into chiral motifs, in this case triskelions, fabricated using a template-assisted self-assembly method. Credit: Adapted from Nature Communications (2025). DOI: 10.1038/s41467-025-56999-0

Researchers from ICMAB are revolutionizing how we manipulate light at the nanoscale using chiral plasmonic structures—nanomaterials designed to interact with polarized light in extraordinary ways.

ICMAB researchers from the NANOPTO group at ICMAB have recently published two studies demonstrating how cost-effective fabrication techniques can produce highly efficient chiral nanostructures with potential applications in sensors, imaging, and even quantum technologies.

The first study, published in Nature Communications, showcases self-assembled chiral plasmonic architectures (triskelion patterns) made from gold and silver nanoparticles. These structures demonstrate exceptional optical responses, selectively interacting with circularly polarized light, opening up exciting possibilities for advanced optoelectronic devices.

In a second study, published in ACS Applied Materials & Interfaces, the team introduced novel plasmonic metasurfaces using inverted pyramid arrays. These metasurfaces provide unprecedented polarization control and can be fabricated using soft lithography and anisotropic etching, resulting in a cost-effective and scalable method.

Revolutionizing light manipulation: Advances in chiral plasmonic nanostructures
Inverted pyramids. Credit: ACS Applied Materials & Interfaces (2025). DOI: 10.1021/acsami.4c19803

Luis Pérez, co-author of both studies, commented on the potential of these advancements. “Our research lays the foundation for a new generation of light-manipulating devices that could significantly improve technologies in fields like displays and environmental monitoring.”

Researcher Agustín Mihi emphasized the importance of scalability in these innovations. “Not only do we push the limits of optical properties at the nanoscale, but we ensure that these technologies can be scaled up for industrial applications. This combination of performance and scalability is essential for transforming these discoveries into real-world products.”

These two studies together offer revolutionary insights into the manipulation of light at the nanoscale and pave the way for more efficient and accessible optoelectronic devices, with broad applications in industries ranging from health care to energy and communications.

See also  Overcoming challenges in electron transport through graphene nanostructures


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