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(Color online) Characterization of the polycrystal LiNbO3 photonic crystal sample. (a) SEM image for the large scale. (b) SEM image for the small scale. (c) AFM image of a 300-nm-thick polycrystal LiNbO3 film. (d) Calculated transmission spectrum.
(Color online) Measured (a) and calculated (b) linear transmission spectrum of the polycrystal LiNbO3 photonic crystal sample. (c) Measured transmittance spectrum of a 300-nm-thick polycrystal LiNbO3 film by using a Fourier transform infrared spectrometer system.
(Color online) All-optical tunability of Fano resonance. (a) Measured transmission changes of Fano resonance wavelength as a function of the pump intensity. The wavelength of the pump light was 1500 nm. The thick line represents the exponentially fitted result. (b) Calculated transmission spectrum of the polycrystal LiNbO3 photonic crystal with different pump intensity by the FDTD method.
(Color online) Closed-aperture Z-scan curve of the polycrystal LiNbO3 film. The solid curve is the theoretical fit to the data.
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