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Ultraviolet laser diodes

Indium-free success

Researchers at Hamamatsu report an indium-free laser diode operating at 342 nm, the shortest wavelength so far for an electrically pumped semiconductor laser diode.

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Figure 1: An image of visible photoluminescence from Hamamatsu's UV laser diode during operation.

Hamamatsu

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Schwarz, U. Indium-free success. Nature Photon 2, 521–522 (2008). https://doi.org/10.1038/nphoton.2008.163

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