Vectorial near-field imaging of a GaN based photonic crystal cavity
Vectorial near-field imaging of a GaN based photonic crystal cavity
复制标题
GaN基光子晶体腔的矢量近场成像
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
M. Gurioli
中科院分区：
文献类型：
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作者：
F. L. China;F. L. China;F. Intonti;F. Intonti;N. Caselli;N. Caselli;F. Lotti;F. Lotti;A. Vinattieri;A. Vinattieri;N. V. Triviño;J. Carlin;R. Butté;N. Grandjean;M. Gurioli;M. Gurioli
我们报告了改进的 GaN L3 光子晶体纳米腔的受限模式的电局部状态密度的矢量分量的全光学深亚波长成像。模式映射是通过在共振前向散射配置下运行的扫描近场光学显微镜获得的，从而可以对光学无源样品进行矢量表征。所研究的腔的光学模式以法诺共振的形式出现，并且可以在不需要嵌入式光发射器或瞬逝光耦合到纳米腔的情况下进行探测。在两个面内偏振中独立测量的实验图与数值预测非常一致。
We report a full optical deep sub-wavelength imaging of the vectorial components of the electric local density of states for the confined modes of a modified GaN L3 photonic crystal nanocavity. The mode mapping is obtained with a scanning near-field optical microscope operating in a resonant forward scattering configuration, allowing the vectorial characterization of optical passive samples. The optical modes of the investigated cavity emerge as Fano resonances and can be probed without the need of embedded light emitters or evanescent light coupling into the nanocavity. The experimental maps, independently measured in the two in-plane polarizations, turn out to be in excellent agreement with numerical predictions.
影响因子：
19.4
作者：
Caselli, Niccolo;Intonti, Francesca;Gurioli, Massimo
通讯作者：
Gurioli, Massimo