When physicists at the ARC Centre for Transformative Meta-Optical Systems (TMOS) needed a key component for their terahertz experiments, they ran into a frustrating problem—they needed tiny optical devices, known as wire-grid polarizers, but these cost thousands of dollars each.

Source: [Phys.org](https://phys.org/news/2026-08-laser-aluminum-foil-terahertz-polarizers.html)

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