Polar Fe(IO3)3 nanocrystals as local probes for nonlinear microscopy
Polar Fe(IO3)3 nanocrystals as local probes for nonlinear microscopy
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DOI：
10.1007/s00340-007-2612-z
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发表时间：
2007-05-01
影响因子：
2.1
通讯作者：
Wolf, J.-P.
中科院分区：
文献类型：
--
作者：
Bonacina, L.;Mugnier, Y.;Wolf, J.-P.
我们用偏振敏感二次谐波（SHG）显微镜研究了Fe(IO3)(3)的纳米晶体。由于这种材料的非线性光学性质的表征很差，我们首先通过对纳米晶体系综的偏振分辨SHG响应的全局拟合确定了其二阶磁化率张量元素的相对值。这个信息允许人们光学地检索样品中单个粒子的方向。Fe(IO3)(3)纳米晶体的高SHG效率及其极性性质使其在生物样品的非线性显微研究中具有很大的吸引力。
We have investigated nanocrystals of Fe(IO3)(3) by polarization-sensitive second harmonic generation (SHG) microscopy. As the nonlinear optical properties of this material were only poorly characterized, we have first determined the relative values of the elements of its second-order susceptibility tensor, by the global fitting of the polarization-resolved SHG response of an ensemble of nanocrystals. This information allows one to optically retrieve the orientation of individual particles in the sample. The high SHG efficiency measured for nanocrystals of Fe(IO3)(3) and their polar nature could make them very attractive for nonlinear microscopy of biological samples.