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首页> 外文会议>Nonlinear Optics and Its Applications VIII; and Quantum Optics III >Linear electro-optical scattering from ferroelectric nanocrystals
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Linear electro-optical scattering from ferroelectric nanocrystals

机译：铁电纳米晶体的线性电光散射

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摘要

We report on the linear electro-optical scattering response from individual ferroelectric (KTiOPO_4) nano-crystals. The newly developed Pockels Linear Electro-Optical Microscopy (PLEOM) is used in this context to map the second-order susceptibility x~((2)) of non-centrosymmetric materials with a high sensitivity due to a stabilized interferometric homodyne detection. The random spatial orientation of single nano-crystals (with an average size of 150 nm), together with the orientation of the electric dipole moment of ferroelectric domains can be jointly inferred from the intensity polarization plots together with phase of the linear electro-optical response. Down-scaling the electro-optic response to nano-crystals opens-up new applications towards sub-diffraction electro-optic nano-labels for nonlinear microscopy with applications to nano-sciences and biophotonics. By using a low power He-Ne laser source and a low intensity illumination beam, PLEOM bears the potential of a new low-cost non-invasive imaging method in biology, especially relevant for sensitive samples.
机译：我们报告了单个铁电（KTiOPO_4）纳米晶体的线性电光散射响应。由于稳定的干涉式零差检测，在这种情况下使用了新开发的Pockels线性电光学显微镜（PLEOM）来绘制非中心对称材料的二阶磁化率x〜（（2））。可以从强度极化图以及线性电光响应的相位共同推断出单个纳米晶体（平均尺寸为150 nm）的随机空间取向以及铁电畴的电偶极矩的取向。 。缩小对纳米晶体的电光响应，为面向非线性光学的亚衍射电光纳米标签开辟了新的应用领域，并应用于纳米科学和生物光子学。通过使用低功率He-Ne激光源和低强度照明光束，PLEOM有望在生物学中开发出一种新的低成本无创成像方法，特别是对于敏感样品。

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