Scientists from the Faculty of Physics at the University of Warsaw, working with teams from the Łódź University of Technology, the Warsaw University of Technology, and the Polish Academy of Sciences, have created a structure that can trap infrared light within a layer just 40 nanometers thick (about 0.00004 millimeters or 0.0000016 inches). They achieved this by designing a subwavelength grating made from molybdenum diselenide (MoSe2). Their findings were published in the journal ACS Nano.
Controlling light at very small scales could transform both science and technology. As traditional electronics approach their physical limits, photonics offers a new path forward. Instead of relying on slow-moving electrons, photonic systems use fast photons to carry information. This approach could lead to devices that are both faster and smaller than current technologies.
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