If I understand it correctly they achieved a conversion efficiency of 3.42% for a less efficient technique that is not used by ASML for producing EUV. Seems it is more like making progress than a breakthrough. A good light source is essential, but building a machine comparable with the ASML machines requires a lot of engineering in other areas as well.
robocat•37m ago
The article seems to concentrate on efficiency, which surely isn't an important constraint in this application (for EUV light generation).
Typically when a technology doesn't meet a critical constraint, the marketing will laud some other less important attribute.
faragon•3h ago