Abstract

We demonstrate optical rectification in BNA organic crystals using bursts of pulses from a high-power thin-disk oscillator at 13.3 MHz repetition rate. We measure an average power of 0.95 mW at 10% duty cycle with a conversion efficiency of 4×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-4</sup> . To the best of our knowledge, this is the highest average power reported with commercially available BNA so far. The detected THz spectrum bandwidth spans up to 6 THz.

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