Ultrabroadband detection of multi-terahertz field transients with GaSe electro-optic sensors: Approaching the near infrared

  • Kübler C
  • Huber R
  • Tübel S
 et al. 
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Electro-optic detection with unprecedented bandwidth is implemented with GaSe sensors utilizing phase matching. We directly record transform-limited 28-fs pulses containing spectral components beyond 120 THz (λ=2.5 μm). Using thicker crystals, the continuous tunability of the detector response is demonstrated between 14 THz and 31 THz.

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  • C. Kübler

  • R. Huber

  • S. Tübel

  • A. Leitenstorfer

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