Rewritable Nanoplasmonics through Room-Temperature Phase Manipulations of Vanadium Dioxide

Dustin Schrecongost, Yinxiao Xiang, Jun Chen, Cuifeng Ying, Hai Tian Zhang, Ming Yang, Prakash Gajurel, Weitao Dai, Roman Engel-Herbert, Cheng Cen

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The interactions between light and plasmonic charge oscillations in conducting materials are important venues for realizing nanoscale light manipulations. Conventional metal-based plasmonic devices lack tunability due to the fixed material permittivities. Here, we show that reconfigurable plasmonic functionalities can be achieved using the spatially controlled phase transitions in strongly correlated oxide films. The experimental results discussed here are enabled by a recently developed scanning probe-based technique that allows a nonvolatile, monoclinic-metal VO2 phase to be reversibly patterned at the nanoscale in ambient conditions. Using this technique, rewritable waveguides, spatially modulated plasmonic resonators, and reconfigurable wire-grid polarizers are successfully demonstrated. These structures, effectively controlling infrared lights through spatially confined mobile carriers, showcase a great potential for building programmable nanoplasmonic devices on correlated oxide platforms.

Original languageEnglish (US)
Pages (from-to)7760-7766
Number of pages7
JournalNano letters
Volume20
Issue number10
DOIs
StatePublished - Oct 14 2020

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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