Abstract
Dielectric crystal-like lattices, termed photonic crystals, attract growing interest due to their unique and useful optical properties. Natural and artificial opals composed of three-dimensional (3D)-ordered lattices of submicron silica microspheres are highly interesting model objects for the study of photonic crystals. Synthetic opals based on monodisperse 270-nm-diameter silica microspheres were obtained. Optical measurements demonstrated the presence of different optical pseudogaps appeared due to reflection from different planes in the face-centered cubic (fcc) structure of opal; the positions of pseudogaps were estimated using the modified Bragg law.
Original language | English (US) |
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Pages (from-to) | 477-479 |
Number of pages | 3 |
Journal | Solid State Ionics |
Volume | 172 |
Issue number | 1-4 SPEC. ISS. |
DOIs | |
State | Published - Aug 31 2004 |
Externally published | Yes |
Keywords
- Opals
- Photonic crystals
- Photonic stop-bands
- Self-assembly
- Silica
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- Condensed Matter Physics