Abstract
By adjusting an infrared laser power illuminated onto a vanadium dioxide
(VO<sub>2</sub>) thin film, we have demonstrated laser-assisted control of
field-induced electrical oscillation in a planar junction device based on a
VO<sub>2</sub> thin film. Before the illumination, the VO<sub>2</sub>-based
two-terminal device was arranged in the electrical circuit for creating the
field-induced oscillation. With the increase of the illumination power, the oscillation
could be initiated, and the oscillation frequency could be also continuously and fully
tuned until the extinguishment of the oscillation through the variation of the light
power. The tuning sensitivity and linearity of the oscillation frequency with respect to
the illumination power were evaluated as ~7.732 MHz/W and ~0.9903 (an <i>R</i>-squared
value of a linear fit), respectively.
© 2012 IEEE
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