Abstract
Three-dimensional (3D) photonic crystals containing artificial point defects have been fabricated to emit light at optical communications wavelengths. They were constructed by stacking 0.7-micrometer-period gallium arsenide striped layers, resulting in a 3D "woodpile" photonic crystal. Indium-gallium arsenide-phosphide quantum-well layers emitting at a wavelength of 1.55 micrometers were incorporated in the center of the crystal. Samples having up to nine stacked layers were constructed, and artificial point-defect cavities of different sizes were formed in the light-emitting layer. Light emission was suppressed in the photonic crystal regions, whereas cavity modes were successfully observed at the point defects and were size dependent.
Original language | English |
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Pages (from-to) | 227-229 |
Number of pages | 3 |
Journal | Science |
Volume | 305 |
Issue number | 5681 |
DOIs | |
Publication status | Published - 2004 Jul 9 |
Externally published | Yes |
ASJC Scopus subject areas
- General