August 22, 2003
Physicists have made a new type of ultra-precise laser pointer by “squeezing” a beam in two directions. They are able to position the beam with a precision of 1.6 Angstroms, almost 1.5 times better than the theoretical limit for a conventional laser.
The team now hopes to exploit the technique in atomic force microscopy, measurements of refractive index and studies of molecules in living cells.
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