<ul><li>A team of researchers from the Netherlands and the U.S. has developed a new method to concentrate light in a very small space using a photonic crystal.</li><li>This breakthrough could have significant implications for quantum communication, advanced sensors, and tiny lasers used in photonic chips.</li><li>The photonic crystal structure prevents light from spreading through the material, but when two crystals are placed together, a unique boundary is formed where light can move along a narrow edge.</li><li>The light is 'topologically protected,' meaning it can travel without being scattered or reflected by imperfections, and it can be amplified in a concentrated space.</li></ul>

New crystal tech supercharges light on a chip—No lens needed

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