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Infrared pulses of 1 picosecond duration tunable between 4 μm and 18 μm

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6 Author(s)
Dahinten, T. ; Physikalisches Inst., Bayreuth Univ., Germany ; Plodereder, U. ; Seilmeier, A. ; Vodopyanov, K.L.
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The generation of infrared pulses via difference frequency mixing of Nd:glass laser pulses and infrared dye laser pulses is discussed. Tuning between 4 and 18 μm is achieved by various combinations of laser dyes (dye No. 5 and A 9860) and nonlinear crystals (AgGaS2 and GaSe). The energy of the mid-infrared pulses is in the order of a microjoule; and the photon conversion efficiency is ≲2%. The duration of the nearly bandwidth limited pulses is measured to be 1 ps. The system operates with a repetition rate of 1 Hz

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Quantum Electronics, IEEE Journal of  (Volume:29 ,  Issue: 7 )