(c)2001 American Institute of Aeronautics & Astronautics or Published with Permission of Author(s) and/or Author(s)' Sponsoring Organization. A01-31354 AIAA-2001-2732 Probe Measurements and Laser Absorption Spectroscopy on the IRS IPG3 Plasma Plume M. Auweter-Kurtz 1 , G. Herdrich 2 , K. Komurasaki 3 , T. Laux 4 1 2 , and : Institutfur Raumfahrtsysteme (IRS) Universitat Stuttgart Pfaffenwaldring 31 70550 Stuttgart Federal Republic of Germany 3 : Department of Aeronautics and Astronautics University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan 35th AIAA Thermophysics Conference 11 -14 June 2001 / Anaheim, CA For permission to copy or republish, contact the American Institute of Aeronautics and Astronautics 1801 Alexander Bell Drive, Suite 500, Reston, VA20191