Photoluminescence from silicon dioxide photonic crystal cavities with embedded silicon nanocrystals
Photoluminescence from silicon dioxide photonic crystal cavities with embedded silicon nanocrystals
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DOI：
10.1103/physrevb.81.235317
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发表时间：
2010-06-14
影响因子：
3.7
通讯作者：
Vuckovic, Jelena
中科院分区：
文献类型：
--
作者：
Gong, Yiyang;Ishikawa, Satoshi;Vuckovic, Jelena
利用硅纳米晶体在二氧化硅中制备了一维纳米梁光子晶体腔。实验中发现品质因数超过9 × 10（3），与理论预测相符，模体积为1.5（λ/n）（3）。在600-820 nm的可见光波长范围内观察到来自腔模的光致发光。在不同的温度和泵浦功率下，对腔的损耗特性进行了研究。自由载流子吸收效应被发现是显着的泵功率低至几百千瓦。
One-dimensional nanobeam photonic crystal cavities are fabricated in silicon dioxide with silicon nanocrystals. Quality factors of over 9 X 10(3) are found in experiment, matching theoretical predictions, with mode volumes of 1.5 (lambda/n)(3). Photoluminescence from the cavity modes is observed in the visible wavelength range 600-820 nm. Studies of the lossy characteristics of the cavities are conducted at varying temperatures and pump powers. Free carrier absorption effects are found to be significant at pump powers as low as a few hundred nanowatts.