Repetition-rate-selectable High-speed Optical Gating in a VO2 Thin Film Based on Gain Modulation of Optical Amplifier

Laser-Assisted Control of Electrical Oscillation in VO2 Thin Films Grown by Pulsed Laser Deposition

“…When P L increases, not only V T but also I T is decreased. 13) The increase of P L decreases the slopes and y intercepts of the two inequalities that determine the oscillation window addressed in the explanation of Fig. 1(d).…”

“…6) Within the oscillation window, the stable operation of the FIEO is observed, and oscillation properties including the oscillation frequency linearly respond to several external stimuli such as external resistance, capacitance, heat, etc. 6,12,13,16,17) Beyond the window (for example, at large V S ), the VO 2 film of the device turns into the metallic state, which causes Joule heating and disappearance of capacitive components in the film.…”

“…It was already reported that the optical illumination changed the NDR property of the VO 2based device whose film was fabricated by a pulsed laser deposition (PLD) technique. 13) This laser-assisted NDR change may vary the characteristics of the FIEO generated in the device based on the VO 2 film deposited by PLD because it affects the generation condition of the oscillation.…”