Re: photon sieve

Hi,

On Mon, 4 Feb 2002, Richard M. Koolish wrote:

> There may be a new kind of zone plate called the 'photon sieve'.
> Instead of using clear and opaque concentric rings, it uses pinholes
> of decreasing diameter arranged in rings related to the zone plate.
>
> See: http://www-hasylab.desy.de/newsletter/2001-12-01.htm

  Wow, they even have their PATENT ATTORNEY on the list of authors
... I haven't seen that before (and I have seen a couple of scientific
papers). Plus, it also looks like it's really hard to make. But maybe
somebody more familiar with the physics (and perhaps online access to
nature) can help with the details. 22272 pinholes just sounds like a lot
of work ;)

Regards,

Robert

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Received on Mon Feb 4 10:13:59 2002