Researchers Shrink Titanium-Sapphire Laser to Chip-Scale
STANFORD, Calif. July 1, 2024 — Lasers made of titanium-sapphire (Ti:sapphire) are considered to have “unmatched” performance. They are used in many fields, including cutting-edge quantum optics, spectroscopy, and neuroscience. But that performance comes at a steep price, as Ti:sapphire lasers are big enough to be counted in cubic feet in terms of volume, cost thousands of dollars, and require other high-powered lasers to supply them with enough energy to function. As a result, Ti:sapphire lasers have not been