Mid-infrared laser light nulling experiment using single-mode conductive waveguides L. Labadie, E. Le Coarer, R. Maurand, P. Labeye, P. Kern, B. Arezki and J.-E. Broquin A&A, 471 1 (2007) 355-360 Published online: 25 May 2007 DOI: 10.1051/0004-6361:20067005