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Lasers

Lasers

New titanium:sapphire laser is tiny, low-cost and tuneable

02 Jul 2024
Ti:sapphire laser
Tiny lasers An array of titanium:sapphire lasers are found on the slender chip that is leaning against a much larger titanium:sapphire cube. An American quarter dollar coin is shown for scale. (Courtesy: Stanford University/Joshua Yang et al/Nature)
A compact, integrated titanium:sapphire laser that needs only a simple green LED as a pump source ha

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Tim Wogan is a science writer based in the UK
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