Artificial OPAL structures for 3D-optoelectronics
Michail I. Samoilovich1 (
), Andrey V. Guryanov
1,
Michail Yu. Tsvetkov
2
1Opalon, Moscow, Russia.
2Fiber Optics Research Center at GPI RAS, Moscow, Russia.
Recent years an increasing attention has been paid to the developmentof new
submicron optical elements. The progress in this area in many
respects is determined by photonic material technologies. From the
various technological approaches the methods ensuring the self-organizing
photon templates, such as the technology of artificial opal systems, are
the most perspective.
These activities in Russia started in "Almaztechnocrystal" ("Opalon") in
1991. Now our materials syntesis ensure the highly controlled formation
of f.c.c. lattice of mono-disperse (<3% diameter variation) silica spheres
whose diameter can be chosen between 200 and 600 nm. The long-range
crystalline order extends over the volume up to 0.1 mm3 (cub. mm).
We are now developing technologies of the opal templates infiltrating
with semiconductive, superconductive, photoelastic, biomolecular and
other materials, such as Si, Ti, GaAs, ZnS, CdS, CdTe, MgO, GaN, InN,
InPb etc. For these aims we use such techniques as CVD, vapor and chemical
transport, hydrothermal processing, processing by heats and pressure etc.
The application of nanocomposite materials with opal templates opens the
new frontier in 3D-elements for nanoelectronics and photonics. Thus, from
artificial opals the elements with new waveguide properties can be
developed, in particular, the waveguides with very sharp bendings. The
opal voids with submicron dimensions can be used for a creation of
superdense memory cells. Also, the opal templates can find applications
for development of different types of the optical lasers and amplifiers,
optical switches and sensors.