Tag: Spontaneous Emission
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Spontaneous Emission in Photonic Time Crystals: New Decay
Breakthrough: Spontaneous Emission Reimagined in Time-Varying Media A KAIST-led international collaboration has achieved a landmark result in quantum optics by demonstrating that spontaneous emission behaves in a fundamentally new way inside Photonic Time Crystals (PTCs). Challenging prior predictions, the team shows that the spontaneous emission decay rate is enhanced—not extinguished—by rapid, periodic changes of a…
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First Elucidation Of Spontaneous Emission And Excitation In Photonic Time Crystals
Breakthrough: Spontaneous Emission Gets a Time-Tuned Twist A KAIST-led collaboration has unveiled a surprising twist in how light interacts with matter when the environment itself changes in time. In a study published online in Physical Review Letters on September 23, 2025, researchers from KAIST’s Department of Physics—led by Professor Bumki Min—and partners from the Department…