The paper published by the group in the Journal of Physics
did not use the German word however and the work was carried out by
a consortium from the University of Strathclyde, Imperial College London,
Rutherford Appleton Laboratory, ITU Karlsruhe and the University of Jena

Correct.


The trouble is they used a hell of a lot of power in the
process 5x1020 Watts per square centimetre to be precise.

They are going to have to reduce that by several orders of
magnitude for commercial use.


Thats correct too,but "military" priorities and spending habits are a little
bit different from commercial ones.
Thats the probably reason why military was many times in the history the first
user of advanced technologies .