Mid-infrared beam splitter for ultrashort pulses

Carmine Somma, Klaus Reimann, Michael Woerner, Thomas Kiel, Kurt Busch, Andreas Braun, Mathias Matalla, Karina Ickert, and Olaf Krüger

Index: 10.1364/OL.42.002918

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Abstract

A design is presented for a beam splitter suitable for ultrashort pulses in the mid-infrared and terahertz spectral range consisting of a structured metal layer on a diamond substrate. Both the theory and experiment show that this beam splitter does not distort the temporal pulse shape.