Preparing flow-through Casimir cavities might be as simple as:
1. Anodize a clean aluminum surface to a sufficient depth,
creating an alumina nano-pore array surface.
2. Remove the aluminum substrate by etching.
3. Aluminize the alumina pores to create flow-through Casimir
nano-cavities.
Such porous surfaces might be used in gas flow-through mode, or as
evaporation surface gas-liquid interfaces.
For information on nanopore arrays see: "Polycrystalline nanopore
arrays with hexagonal ordering on aluminum", A. P. Li,a) F. Muller,
A. Birner, K. Nielsch, and U. Gosele. This is at:
http://www.mpi-halle.mpg.de/~porous_m/Publications/jvsta1999.pdf
http://tinyurl.com/lff7f4
See also:
http://optonano.engin.brown.edu/publications/pdf/JAP02544.pdf
http://tinyurl.com/psd98q
For more info on nanoporous alumina surfaces see:
http://www.esco.co.kr/pdf/download/JPK/app0403-2.pdf
http://tinyurl.com/mapgdn
Another approach is to use self-assembling nanotechnological
structures as a starting point for building aluminized flow through
Casimir cavities:
http://www.physorg.com/news9639.html
http://tinyurl.com/ltpz2e
The following patent may be of interest in regards to making flow-by
nano-structures:
US patent 4,190,321
United States Patent, 4,190,321, Dorer , et al., February 26, 1980,
"Microstructured transmission and reflectance modifying coating".
A similar approach using carpets of carbon nanotubes is feasible.
For info on growing nanotube carpets see google (nanotube carpet).
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
