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Updated: Jun 13, 2026

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
Published on: May 13, 2020
Nonreciprocal switching of VO(2) thin films on microstructured surfaces
Ismail Karakurt1, Charles H Adams, Paul Leiderer
1Department of Physics, Işik University, Sile Istanbul 34980, Turkey. ikarakurt@isikun.edu.tr
Abstract:
We demonstrate that the combination of near-field focusing and a switchable oxide layer permits construction of a modulator with different optical switching thresholds in two opposing directions. For that purpose VO(2) layers are deposited onto spherical micrometer-sized particles. The phase transition in VO(2) is induced by a nanosecond-pulsed Nd:YAG laser from two different directions. The measured thresholds differ by a factor of 2.4, consistent with calculated differences in the intensities in the two directions.
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