%0 Conference Proceedings %T Beam waist measurement for terahertz time domain experiments %+ Laboratoire d'optique et biosciences (LOB) %A Gallot, Guilhem %A Podzorov, Alexander %A Wojdyla, Antoine %< avec comité de lecture %( Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 %B 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 %C Busan, South Korea %P 1-2 %8 2009-09-21 %D 2009 %R 10.1109/ICIMW.2009.5325575Conference papers %X Classical variable aperture masking method is not directly applicable to Time Domain Spectroscopy (TDS) experiments. Here, we present a simple and reliable method for measuring beam waists in TDS. It is based on the successive diffraction by an opaque disk followed by a small circular aperture. © 2009 IEEE. %G English %L hal-00838901 %U https://polytechnique.hal.science/hal-00838901 %~ X %~ CNRS %~ X-LOB %~ X-DEP %~ X-DEP-BIO