Ultracompact metasurface in-line polarimeter

作者：Mueller J P Balthasar; Leosson Kristjan; Capasso Federico

来源：Optica, 2016, 3(1): 42-47.

DOI：10.1364/OPTICA.3.000042

In-line polarimeters perform nondestructive polarization measurements of optical signals, and play a critical role in monitoring and controlling the polarization environment in, for example, optical networks. While current in-line polarimeters are constructed with multiple optical components, either fabricated into an optical fiber or using free-space optics, we present here a novel architecture conducive to monolithic on-chip integration. This enables the scalable fabrication of high-performance polarization sensors with exceptional stability, compactness, and speed. The method relies on the detection of the highly polarization-dependent scattered field of a subwavelength antenna array known as a metasurface, and is shown here to provide polarization state measurements matching those of a state-of-the-art commercial polarimeter.

• 出版日期2016-1-20