This ultra-thin surface controls light in two completely different ways

A new metasurface design lets light of different spins bend, focus, and behave independently—while staying sharp across many colors. The trick combines two geometric phase effects so each spin channel can be tuned without interfering with the other. Researchers demonstrated stable beam steering and dual-focus lenses over wide frequency ranges. The approach could scale from microwaves all the way to visible light.

Updates Feb 5, 2026 0 12 Add to Reading List

This ultra-thin surface controls light in two completely different ways

WHY THE HEN DOES NOT HAVE TEETH STORY BOOK

It’s an amazing story, composed out of imagination and rich with lessons. You’ll learn how to be morally upright, avoid immoral things, and understand how words can make or destroy peace and harmony.

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WHY THE HEN DOES NOT HAVE TEETH STORY BOOK

Click the image to get your copy!

WHY THE HEN DOES NOT HAVE TEETH STORY BOOK

Click the image to get your copy!

A new metasurface design lets light of different spins bend, focus, and behave independently—while staying sharp across many colors. The trick combines two geometric phase effects so each spin channel can be tuned without interfering with the other. Researchers demonstrated stable beam steering and dual-focus lenses over wide frequency ranges. The approach could scale from microwaves all the way to visible light.

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