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Creators/Authors contains: "Sekine, R"

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  1. We report frequency comb generation in the mid-IR beyond 4 μm in a dispersion-engineered periodically poled lithium niobate nano-waveguide through simultaneous second-harmonic generation, quadratic spectral broadening, and intra-pulse difference-frequency generation. 
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    Free, publicly-accessible full text available May 4, 2026
  2. We theoretically describe and experimentally demonstrate dark soliton formation in a quadratic nonlinear resonator in lithium niobate nanophotonic. The dark pulses have a temporal duration of 40 fs and form a 120-nm-wide coherent frequency comb. 
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    Free, publicly-accessible full text available May 4, 2026
  3. Free, publicly-accessible full text available May 4, 2026