the difficulty involved in making a photon sieve is about the same as making a polarizing filter jim
----- Original Message ----- From: "Mike Vande Bunt" <mike.vandeb...@mixcom.com> To: <pinhole-discussion@p at ???????> Sent: Wednesday, February 06, 2002 12:59 AM Subject: Re: [pinhole-discussion] photon sieve > I notice that the caption describes a photon seive as containing > "tens of thousands of pinholes." This does not sound like a very > easy device to produce. > > Mike Vande Bunt > > > 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 > > > >It was announced in the Nov 8, 2001 issue of the science journal Nature. > > > > > > > _______________________________________________ > Post to the list as PLAIN TEXT only - no HTML > Pinhole-Discussion mailing list > Pinhole-Discussion@p at ??????? > unsubscribe or change your account at > http://www.???????/discussion/ >
