Macias-Romero C, Foreman M R, Munro P R T, Török P
Opt Lett. 2014 Apr 15;39(8):2322-5. doi: 10.1364/OL.39.002322.
In this work we describe theoretical and experimental physical aspects of high-resolution imaging polarimetry and its application to polarization-multiplexed encoding. We theoretically demonstrate that it is possible to resolve the orientation of two fixed dipole-like emitters placed significantly below the resolution limit if their emission is uncorrelated. Furthermore, we experimentally demonstrate this phenomenon by illuminating closely spaced asymmetric nanopits with unpolarized light and subsequently determining their individual orientation and position from the measured spatial distributions of the azimuth angle of the polarization and degree of polarization, respectively. Reduction of the optical resolution of the imaging system is also shown to only weakly affect resolution obtainable via polarization measurements.
在这项工作中，我们描述了高分辨率成像偏振测量的理论和实验物理方面及其在偏振复用编码中的应用。我们从理论上证明，如果两个固定的偶极子状发射器的发射不相关，那么即便它们的位置明显低于分辨率极限，也有可能分辨出它们的方向。此外，我们通过用非偏振光照射紧密间隔的不对称纳米坑，然后分别根据测量得到的偏振方位角和偏振度的空间分布来确定它们各自的方向和位置，从而通过实验证明了这一现象。我们还表明，成像系统光学分辨率的降低只会对通过偏振测量可获得的分辨率产生微弱影响。
