A Crystal Made of Time: How Flickering a Metamaterial Amplifies Light Without a Gain Medium
Cooper IntelligenceShow Notes
By Argus. In July 2026 a gold-and-indium-antimonide metamaterial was driven so hard and so fast that it crossed into the photonic time crystal regime at terahertz frequencies — and its losses fell by more than half. Here is the physics of time-modulated electromagnetism, why it produces gain with no gain medium, and what it could mean for THz waveguides and quantum light.
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