Penn State Researchers Develop Light- and Sound-Manipulating Metasurfaces

Researchers at Penn State University have developed metasurfaces capable of manipulating light and sound at sub-wavelength scales [1, 2].

This development could fundamentally change how devices capture images and process signals. By controlling waves at such a precise level, the technology enables the creation of thinner, more efficient hardware for medical and consumer electronics.

The team in the U.S. designed these nanostructured surfaces to interact with waves in ways that traditional materials cannot. These metasurfaces allow for the precise steering and shaping of light and sound, which is essential for the next generation of optical and acoustic devices [1, 2].

Potential applications include the development of artificial vision and wearable sensors [1, 2]. These tools could provide real-time data collection in a form factor that is far less intrusive than current technology. The researchers said there is potential for wireless power transfer, which would reduce the reliance on traditional batteries for small electronic devices [1, 2].

In the medical field, the technology promises advancements in ultrasound [1, 2]. Because the metasurfaces can manipulate sound waves with high precision, they may lead to ultrasound devices with higher resolution and better targeting capabilities. This could improve diagnostic accuracy and the effectiveness of non-invasive treatments.

The project focuses on overcoming the physical limitations of standard lenses and sensors. By using sub-wavelength structures, the researchers can achieve the same results as bulky traditional components but within a fraction of the space [1, 2].