Control of light emission by 3D photonic crystals
Control of light emission by 3D photonic crystals
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DOI：
10.1126/science.1097968
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发表时间：
2004-07-09
期刊：
影响因子：
56.9
通讯作者：
Noda, S
中科院分区：
文献类型：
--
作者：
Ogawa, SP;Imada, M;Noda, S
制备了含有人工点缺陷的三维光子晶体，用于发射光通信波长的光。它们是通过堆叠0.7微米周期的砷化镓条形层来构建的，从而形成了一个3D“木堆”光子晶体。在晶体中心加入了波长为1.55微米的铟-镓-磷化镓量子井层。构建了具有多达9个堆叠层的样品，并在发光层中形成了不同大小的人工点缺陷腔。光发射在光子晶体区域被抑制，而在点缺陷处成功地观察到腔模，并且与尺寸有关。
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.