Scientists create ultra-low loss optical device that traps light on a chip

CU Boulder researchers have designed microscopic “racetracks” that trap and amplify light with exceptional efficiency. By using smooth curves inspired by highway engineering, they reduced energy loss and kept light circulating longer inside the device. Fabricated with sub-nanometer precision, the resonators rank among the top performers made from chalcogenide glass. The technology could lead to compact sensors, microlasers, and advanced quantum systems.

Updates Feb 24, 2026 0 8 Add to Reading List

Scientists create ultra-low loss optical device that traps light on a chip

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.

Click the image to get your copy!

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!

CU Boulder researchers have designed microscopic “racetracks” that trap and amplify light with exceptional efficiency. By using smooth curves inspired by highway engineering, they reduced energy loss and kept light circulating longer inside the device. Fabricated with sub-nanometer precision, the resonators rank among the top performers made from chalcogenide glass. The technology could lead to compact sensors, microlasers, and advanced quantum systems.

Read Original