二氧化钒(VO2)介电常数过零的调谐

2019 Photonics North (PN) Pub Date : 2019-05-01 DOI:10.1109/pn.2019.8819555

Ryan Hogan, J. Upham, M. Alam, A. Haché, R. Boyd

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引用次数: 0

摘要

二氧化钒(VO2)在68°C附近具有金属到绝缘体的相变(MIT)。在这个温度下，观察到VO2的电学和光学性质发生了剧烈的变化。我们发现，VO2薄膜在近红外波段具有epsilon-near-zero (ENZ)区域，通过利用这种相变可以在近1000 nm范围内进行热调谐。它们也可能在ENZ区域显示出增强Kerr反应的潜力。

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Tuning the Dielectric Constant Zero Crossing of Vanadium Dioxide (VO2)

Vanadium Dioxide (VO2) has a metal-to-insulator phase transition (MIT) near 68°C. Drastic changes in electrical and optical properties of VO2 are observed at this temperature. We have found that thin films of VO2 have epsilon-near-zero (ENZ) regions in the near infrared that can be thermally tuned over nearly 1000 nm by exploiting this phase transition. They may also show potential for enhanced Kerr response in this ENZ region.

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2019 Photonics North (PN)

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