The chip-scale device demonstrates second harmonic generation and nonlinear conversion efficiency in lithium niobate.
We report a ultra broadband second-order nonlinear optics based on an on-chip thin film lithium niobate. The chip scale device demonstrates a nonlinear conversion of 40 THz bandwidth as well as second harmonic generation with 14000% W −1 cm −2 efficiency.
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Gao et al. (2025) studied this question.
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