TY - CONF A1 - Schade, U. A1 - Ritter, E. A1 - Aziz, E. F. A1 - Puskar, L. A1 - Beckmann, Jörg T1 - Spectroscopic ellipsometry on liquids in the far infrared T2 - International Conference of Infrared Millimeter AND THz waves N2 - The far infrared refractive indices and the extinction coefficients of liquids can be obtained by means of spectroscopic ellipsometry in attenuated total reflection configuration. Such optical constants will contribute to a spectroscopic data base in the far infrared and terahertz spectral regions. The experimental implementation and the calibration procedure of the method are described in detail. The temperature dependency of the optical constants for water over a broad spectral range is exemplarily presented. T2 - 42nd International Conference on Infrared, Millimeter and THz Waves CY - Cancun, Mexico DA - 27.08.2017 KW - Ellipsometry KW - Far Infrared KW - ATR KW - Attenuated total reflection KW - Calibration KW - Extinction coefficients KW - Refractive index measurement KW - Spectroscopic ellipsometry KW - Far infrared refractive index KW - Terahertz spectral region KW - Optical constant KW - Attenuated total reflection configuration KW - Liquid extinction coefficient KW - Optical refraction KW - Optical variables control KW - Optical reflection KW - Liquids KW - Optical films KW - Optical polarization KW - Optical variables measurement PY - 2017 UR - http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8066931&isnumber=8066832 DO - https://doi.org/10.1109/IRMMW-THz.2017.8066931 SN - 2162-2035 SP - MD.1.5-1 EP - MD.1.5-2 PB - IEEE CY - Danvers AN - OPUS4-42028 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Marchetti, Barbara A1 - von Chrzanowski, Lars A1 - Beckmann, Jörg A1 - Röseler, A. A1 - Schade, U. T1 - THz Spectroscopy to derive the optical constants of liquids T2 - IRMMW-THz 2010 - 35th International conference on infrared, millimeter, and terahertz waves (Proceedings) N2 - THz stand-off detection of explosives and other hazardous liquids in public areas becomes more and more relevant and with it the knowledge of their optical properties. We present here both the results of THz transmission spectroscopy measurements and spectroscopic ellipsometry measurements on liquids and their mixtures. T2 - IRMMW-THz 2010 - 35th International conference on infrared, millimeter, and terahertz waves CY - Rome, Italy DA - 2010-09-05 KW - THz Spectroscopy KW - Optical constants KW - Liquids PY - 2010 SN - 978-1-4244-6656-6 DO - https://doi.org/10.1109/ICIMW.2010.5612487 SP - 1 EP - 2 AN - OPUS4-22045 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -