Optical spectroscopy of opal matrices with CdS embedded in its pores: Quantum confinement and photonic band gap effects

@article{Astratov1995OpticalSO,
  title={Optical spectroscopy of opal matrices with CdS embedded in its pores: Quantum confinement and photonic band gap effects},
  author={Vasily N. Astratov and V. N. Bogomolov and Alexandr A. Kaplyanskii and Andry Prokofiev and L A Samoĭlovich and S. M. Samoilovich and Yurii A. Vlasov},
  journal={Il Nuovo Cimento D},
  year={1995},
  volume={17},
  pages={1349-1354}
}
SummaryThe spectra of transmission and reflection of synthetic opal which has 3-dimensional periodic structure were measured at different orientations of incident beam relative to the sample facets. It is shown that opal behaves as «semi-metallic» photonic band gap (PBG) material in the vicinity of photon energy 2.3 eV. The synthesis of CdS microcrystals embedded in the pores of opal was made for the first time in an attempt to form a system of quantum dots. Optical spectra (reflection and… 
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References

SHOWING 1-7 OF 7 REFERENCES
Quantum Confinement and Host/Guest Chemistry: Probing a New Dimension
TLDR
Current approaches for generating nanostructures of conducting materials are briefly reviewed, especially the use of three-dimensional crystalline superlattices as hosts for quantum-confined semiconductor atom arrays (such as quantum wires and dots) with controlled inter-quantum-structure tunneling.
Optical Spectroscopy of Size Effects in Semiconductor Microcrystals
Size effects in semiconductor systems with reduced dimensions have attracted considerable attention within the last few years. Besides the well known quantum-well and quantum-wire structures(1,2),
Photonic bands: Convergence problems with the plane-wave method.
TLDR
It is found that when ∈(r) is sharply peaked, photonic levels become almost degenerate throughout the Brillouin zone, corresponding to standing waves.
Inhibited spontaneous emission in solid-state physics and electronics.
TLDR
If a three-dimensionally periodic dielectric structure has an electromagnetic band gap which overlaps the electronic band edge, then spontaneous emission can be rigorously forbidden.
Colour of Precious Opal