Optical rectification diode of single meta-molecule

研究了基于纳米金超分子的光整流二极管（OR）器件。这种新型器件直接对光电场进行整流。我们制作了具有大量超分子的OR器件，并成功地观察到了OR信号。利用这些实验中获得的参数，我们从理论上评估了使用不同形状的各种电极的单个超分子的OR信号，并发现如果我们使用具有适当尺寸的一对圆柱形电极，则可以在噪声水平上检测信号。

Optical rectification diode(OR) devices based on metamolecules of gold nanoparticles were investigated. This novel device rectifies optical electric fields directly. We fabricated the OR devices with a number of metamolecules, and successfully observed the OR signal. With the parameters obtained in these experiments, we theoretically evaluated the OR signals from a single metamolecule using various electrode in different shapes, and found that the signal can be detected over the noise level, if we use a pair of cylindrical electrodes with an appropriate size.