Dispersion of electromagnetic waves in a resonant opal photonic crystal filled with Al2O3:Cr3

We have studied the band structure and group velocity of electromagnetic waves in an opal photonic crystal filled with Al 2 O 3 :Cr 3+ . The results demonstrate that, when a resonance state of the chromium ion falls within the band gap of an unfilled photonic crystal, the group velocity of electroma...

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Bibliographic Details
Published inInorganic materials Vol. 49; no. 6; pp. 577 - 580
Main Authors Gorelik, V. S., Friman, A. V.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.06.2013
Subjects
Band structure of solids
Chemistry
Chemistry and Materials Science
Chromium
Dispersions
Electromagnetic waves
Group velocity
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Inorganic materials
Materials Science
Mathematical analysis
Photonic crystals
Dispersion Curve
Electromagnetic Wave
Group Velocity
Photonic Crystal
Barium Titanate
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Summary:We have studied the band structure and group velocity of electromagnetic waves in an opal photonic crystal filled with Al 2 O 3 :Cr 3+ . The results demonstrate that, when a resonance state of the chromium ion falls within the band gap of an unfilled photonic crystal, the group velocity of electromagnetic waves decreases anomalously. We have calculated the dispersion curves and frequency dependences of the group velocity of electromagnetic waves in an opal photonic crystal filled with Al 2 O 3 :Cr 3+ .
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168513060034