Re: [pinhole-discussion] photon sieve

2002-02-06 Thread Richard M. Koolish
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 My guess is that you would write a computer program to generate a large original and then photo-reduce it in the

Re: [pinhole-discussion] photon sieve

2002-02-06 Thread Kosinski Family
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

Re: [pinhole-discussion] photon sieve

2002-02-06 Thread Mike Vande Bunt
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

[pinhole-discussion] photon sieve

2002-02-04 Thread Richard M. Koolish
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,