A group of scientists from Russia and China has developed an innovative nanostructured material that makes it possible to separate the bending directions of polarized light waves with almost 100 percent accuracy. This discovery can be used to create ultrasensitive detectors of helical molecules, ITMO University’s press service reported. The new material also holds promise for improving telecommunications and accelerating chemical and biological analysis.
The development was presented by scientists led by Professor Mikhail Rybin from the Faculty of Physics of ITMO University. The research was part of a project aimed at simplifying the fabrication of metasurfaces, artificial structures that can interact with circularly polarized light. Such metasurfaces are attracting the attention of scientists for their ability to create unique devices such as sensors, flat lenses, and even “invisibility cloaks.”
Unlike previous complex technologies that required expensive materials, researchers from Russia and China proposed using elliptical ordinary glass and silicon nanoparticles. These nanoparticles support two types of resonance; electric and magnetic dipole. By appropriately combining these resonances, they were able to create a material that effectively separates light with different circular polarizations, making it ideal for use in biomedical and optical communications devices.
Source: Ferra
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