Fiber electric double-layer platform for a phase shifter based on the Pockels effect of liquid molecules

Meng Luo, Danheng Gao, Xinghua Yang, Nigel Copner, Zhihai Liu, Xingyue Wen, Kang Li, Libo Yuan

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Abstract

The electric double layer was formed at the interface of electrode and liquid and has been widely used in a series of applications ranging from batteries to biosensors based on the electrical properties change. In this letter, we demonstrate a simple microfiber phase shifter based on the Pockels effect of liquid in the electric double-layer. By constructing an electric double layer around the microfiber, the phase shifter can be achieved. Furthermore, the effects of ion concentration and molecular polarity of liquids on this phase shifter were studied. The fiber electric double layer platform has the advantages of low voltage modulation and simple fabrication, which has the potential for wearable sensing devices, biopotential detection, and biomolecule detection.
Original languageEnglish
Article number461463
Pages (from-to)6653-6657
Number of pages5
JournalApplied Optics
Volume61
Issue number22
DOIs
Publication statusPublished - 27 Jul 2022

Keywords

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering
  • Engineering (miscellaneous)

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