Abstract
Selective area growth offers the promise of producing III-nitride photonic crystals (PhCs) without dry etching and concomitant surface damage. Two PhC structures were studied, one comprising an array of flat-topped GaN micropyramids with micrometre-scale periodicity, and the other made up of sharp-tipped pyramids with sub-micrometre periodicity. Angularly resolved reflection and transmission measurements revealed the presence of sharp resonances associated with resonant Bloch modes. As a result, the photonic band structure was determined along symmetry directions of the reciprocal lattice for the two PhC structures.
Original language | English |
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Pages (from-to) | 95-99 |
Number of pages | 4 |
Journal | Physica Status Solidi C |
Volume | 4 |
DOIs | |
Publication status | Published - 2007 |
Keywords
- photonic crystal
- GaN pyramids
- micropyramids
- photonicband
- wave-guides
- microcavities