[MURG] Ultra-precise laser pointer

[Mirco Romanato]

> Physicists have made a new type of ultra-precise laser pointer by
> "squeezing" a beam in two directions. Hans Bachor and colleagues at
> the Australian National University in Canberra and the Université
> Pierre et Marie Curie in Paris are able to position the beam with a
> precision of 1.6 Angstroms. This is almost 1.5 times better than the
> theoretical limit for a conventional laser. The technique could be
> used to improve the performance of a range of optical instruments and
> also in imaging applications in physics and biology (N Treps et al.
> 2003 Science 301 940).

This could be applied to the laser scanning technology to map brain tissues.
In this case, if I remember correctly, the precision is around 16 nm.
How much do we need to map all synapses, axons, etc.?

Mirco