Achromatic polarization rotator imprinted by ultrafast laser nanostructuring in glass

作者：Desmarchelier R; Lancry M^*; Gecevicius M; Beresna M; Kazansky P G; Poumellec B

来源：Applied Physics Letters, 2015, 107(18): 181111.

DOI：10.1063/1.4934866

We demonstrate achromatic polarization rotators implemented by femtosecond laser assisted nanostructuring of silica glass. The rotation of polarization plane results from the chiral arrangement of optical axis embedded in the multi-layered stack of birefringent layers. In our experiments, we achieved rotation of 46.0 +/- 0.6 degrees and 93 +/- 6 degrees in the broad spectral range of 600-1600 nm, which can be extended even further up to 5 mu m. These silica birefringent optical components exhibit advantages over liquid crystal polarizing devices or broadband crystalline waveplates, including large acceptance angle, high thermal stability, and high damage threshold.

• 出版日期2015-11-2
• 单位北京化工大学