Electrically controllable extraordinary optical transmission in gold gratings on vanadium dioxide

Highly tunable optical transmission through one-dimensional gold gratings patterned on top of a film of the phase transition material, vanadium dioxide (VO2), is demonstrated. Dense electrical integration is enabled by grating features that also function as electrical contacts to the VO2. Extraordin...

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Bibliographic Details
Published in:Optics letters 2015-10, Vol.40 (19), p.4408-4411
Main Authors: Jeong, Junho, Joushaghani, Arash, Paradis, Suzanne, Alain, David, Poon, Joyce K S
Format: Article
Language:English
Subjects:
Contact
Diffraction gratings
Gold
Gratings (spectra)
Insulators
Tuning
Vanadium dioxide
Vanadium oxides
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Summary:Highly tunable optical transmission through one-dimensional gold gratings patterned on top of a film of the phase transition material, vanadium dioxide (VO2), is demonstrated. Dense electrical integration is enabled by grating features that also function as electrical contacts to the VO2. Extraordinary optical transmission is observed in the VO2 insulator phase, and the optical transmission is extinguished by up to about 6 dB in a 170 nm thick VO2 film. Measurements of gratings with varying duty cycles demonstrate the dependence of the optical transmission and tuning on the device geometry.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.40.004408