A review of "Trapping and emission of photons by a single defect in a PBG structure" Noda, et. al.
ftth,
and asked how much he drank that night..." Just a ftth' ossifer"
Lefty and Dusty on "Lives of the Cowboys" prairiehome.org
Dusty: "Lefty, whaddya suppose Dubya would say if he could really speak his mind?"
Lefty: "Why he'd be speechless."
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ From Nature, Oct. 5, 2000
The boys in the lab at Kyoto U. have been having some kinda fun. Using MOVPE (Metal-organic vapor phase epitaxy) they have been able to fabricate a very clever device in InGaAsP. Incorporated adjacent to a planar waveguide, the researchers created a couple of "defects" or holes in a two-dimensional triangular lattice slab used as the base PBG structure. They were able to trap light at a couple of different wavelengths in the vicinity of 1545 and 1566nm. Very kuhl. The IR sweet spot. Implications for OADM applications are quite real.
With the difficult material science and compounds involved, this may end up being a non-starter from a commercial point of view. However, I've got to believe that this work will be in some way important to the future course of development of OADM nanostructures. The researchers indicate a confidence about the ability to arbitrarily modify cavity size, thus applications for WDM are easily imagined.
To read the abstract on this article refer here: Message 14724819
[Note: Reviews of the other two referenced articles to follow later in the week. Snail mail is, well, slower than I might hope..]]
Best, Ray |