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Lasers

Lasers

Soap bubbles transform into lasers

15 Mar 2024 Stefan Popa 
Photo of a soap bubble at the end of a capillary tube, bathed in yellowish green laser light
Glowing bubbles: A soap bubble lasing on the end of a capillary tube. (Courtesy: Matjaž Humar and Zala Korenjak/Jožef Stefan Institute)
Soap has long been a household staple, but scientists in Slovenia have now found a new use for it by

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Stefan Popa is a PhD student contributor to Physics World. Stefan is studying at the Centre for Cold Matter at Imperial College London. Find out more about our student contributor networks
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