Tunable Few-Cycle Mid-IR Pulses Towards Single-Cycle Duration by Adiabatic Frequency Conversion

摘要

Using adiabatic difference frequency generation, we generate Fourier-limited, 4-cycle, tunable 2-4 μm mid-IR pulses at μJ-level, and 1.5-cycle, 3 μm pulses with controllable amplitude and phase by shaping before conversion from the near-IR.