Ultra-thin, single-layer polarization rotator

作者：Son T V; Truong V V^*; Do P A; Hache A

来源：AIP Advances, 2016, 6(8): 085102.

DOI：10.1063/1.4960552

We demonstrate light polarization control over a broad spectral range by a uniform layer of vanadium dioxide as it undergoes a phase transition from insulator to metal. Changes in refractive indices create unequal phase shifts on s- and p-polarization components of incident light, and rotation of linear polarization shows intensity modulation by a factor of 10(3) when transmitted through polarizers. This makes possible polarization rotation devices as thin as 50 nm that would be activated thermally, optically or electrically.

• 出版日期2016-8