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  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 2002),
  • paper CWA55

Mirrors and Output Couplers for THz and Optical Radiation

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Abstract

We use time-resolved THz spectroscopy in order to investigate the properties of highly conductive thin films. In this contribution we present experimental data on two of such film systems, which can be used in free-space THz radiation applications. We perform experiments on a thin indium tin oxide (ITO) film evaporated on a highly insulating glass substrate, in order to investigate its properties as a dichroic beamsplitter for THz and optical frequencies. In addition we study three different samples consisting of epitaxially grown p+-doped GaAs layers on GaAs substrates with different doping concentrations and layer thicknesses which are commonly used as contact layers in semiconductor devices (e.g. THz emitter structures).

© 2002 Optical Society of America

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