Study of tunable negative index metamaterials based on phase-change material

Tun Cao*, Robert Simpson, Martin J Cryan

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

46 Citations (Scopus)


The tunable optical response of elliptical nanohole arrays penetrating through metal–phase change material–metal (Au−Ge 2 Sb 1 Te 4 −Au ) films is numerically investigated using the finite difference time domain method in the mid-infrared spectral region. The influence of amorphous and crystalline structural states of Ge 2 Sb 1 Te 4 on the effective optical parameters of the structure is analyzed. Switching between these states provides a large wavelength shift of the structure’s effective optical parameters.

Original languageEnglish
Pages (from-to)439-444
Number of pages6
JournalJournal of the Optical Society of America B
Issue number2
Publication statusPublished - Feb 2013

Bibliographical note

Journal of Optical Society B

Structured keywords

  • Photonics and Quantum




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