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Tunable optical antennas enabled by the phase transition in vanadium dioxide.

07:00 EST 4th November 2013 | BioPortfolio

Summary of "Tunable optical antennas enabled by the phase transition in vanadium dioxide."

Optical antennas, subwavelength metallic structures resonating at visible frequencies, are a relatively new branch of antenna technology being applied in science, technology and medicine. Dynamically tuning the resonances of these antennas would increase their range of application and offer potential increases in plasmonic device efficiencies. Silver nanoantenna arrays were fabricated on a thin film of the phase change material vanadium dioxide (VO2) and the resonant wavelength of these arrays was modulated by increasing the temperature of the substrate above the critical temperature (approximately 68°C). Depending on the array, wavelength modulation of up to 110 nm was observed.

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This article was published in the following journal.

Name: Optics express
ISSN: 1094-4087
Pages: 27503-8

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Medical and Biotech [MESH] Definitions

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A metallic element with the atomic symbol V, atomic number 23, and atomic weight 50.94. It is used in the manufacture of vanadium steel. Prolonged exposure can lead to chronic intoxication caused by absorption usually via the lungs.

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